Toprak Analiz Sonuçlarının Değerlendirilmesi
Özet
Toprak analizleri, bitki besleme stratejilerinin belirlenmesinde ve tarımsal verimliliğin optimize edilmesinde temel bir bilimsel araçtır. Rasyonel gübreleme programlarının oluşturulabilmesi, ancak topraktaki mevcut besin elementlerinin ve fizikokimyasal özelliklerin eksiksiz ve doğru şekilde belirlenmesiyle mümkündür. Toprak analizleri yalnızca besin eksikliklerini ortaya koymakla kalmaz; aynı zamanda besin elementlerinin aşırı birikimi sonucu oluşabilecek toksisite risklerini, tuzluluk ve alkalilik gibi fizikokimyasal sorunları da tespit eder. Bu bölümde, (1) toprak analiz sonuçlarının değerlendirilmesinde izlenecek yöntem ve dikkat edilmesi gereken hususlar, (2) topraklara gübre tavsiyelerinde kalibrasyon yönteminin uygulanması ve (3) analiz sonuçlarının değerlendirilerek toprakların yeterlilik derecelerine göre sınıflandırılması konuları ele alınmıştır. Birinci kısımda, toprak analizlerinin yapılma amaçları, en uygun analiz zamanı ve dikkat edilmesi gereken noktalar açıklanmıştır. İkinci kısımda, toprak analizine dayalı gübre önerilerinin yalnızca o bölgenin toprak ve iklim koşullarını yansıttığı, bu nedenle farklı bölge koşullarında doğrudan kullanılamayacağı belirtilmiştir. Ayrıca, herhangi bir analiz yönteminin farklı toprak ve iklim koşullarında kullanılabilmesi için mutlaka o bölgenin koşullarına uygun tarla denemeleri ile kalibrasyonunun yapılması gerektiği vurgulanmıştır. Bu kapsamda, azot kalibrasyonu (organik madde yöntemi) örneği üzerinden kalibrasyon çalışmasının nasıl yürütüldüğü açıklanmıştır. Kalibrasyon sonuçlarına göre topraklar, içerdiği besin maddesi miktarına göre “çok az, az, orta, yeterli, çok” veya “çok fazla” olarak sınıflandırılmış ve buna uygun gübre dozajları belirlenmiştir. Üçüncü kısımda ise topraklar; fiziksel ve kimyasal özelliklerine göre toprak reaksiyonu (pH), elektriksel iletkenlik (EC), tekstür, organik madde (OM), katyon değişim kapasitesi (KDK), kireç ve kireç ihtiyacı esas alınarak değerlendirilmiştir. Makro besin elementlerinden azot (N), alınabilir fosfor (P), değişebilir potasyum (K), kalsiyum (Ca), magnezyum (Mg) ve kükürt (SO4); mikro besin elementlerinden demir (Fe), çinko (Zn), bakır (Cu), manganez (Mn), bor (B) ve klor (Cl) konsantrasyonları dikkate alınarak sınıflandırma yapılmıştır. Ayrıca, diğer besin elementlerinden nikel (Ni), kobalt (Co) ve selenyum (Se) da değerlendirilmiş ve topraktaki yeterlilik dereceleri belirlenmiştir. Sonuç olarak, toprak analiz sonuçları hem uygulanacak gübre dozlarının belirlenmesinde hem de toprak sağlığının izlenmesi ve korunmasında bilimsel bir temel oluşturur. Bu bütüncül yaklaşım sayesinde tarımsal ürünlerin miktar ve kalitesi artırılırken, çevre üzerindeki olumsuz etkiler de en aza indirilebilir.
Referanslar
İbrikçi H, Gülüt KY, Güzel N, Büyük G. Gübrelemede Bitki Analiz Teknikleri. Türkiye 3. Ulusal Gübre Kongresi, Tarım-Sanayi-Çevre, 11-13 Ekim 2004, Tokat, s. 1187-1214.
Aktaş M. Bitki Besleme ve Toprak Verimliliği. Ankara Üniversitesi. Ziraat Fakültesi Yayınları No: 1361 Ders Kitabı: 395. 1994.
McLean EO, Carbonell MD. Calcium, magnesium and potassium saturation ratios intwo soils and their effects upon yields and nutrient contents of German millet and alfalfa. Soil Sci. Soc. Am. Proc. 1972;36: 927-931.
Liebhardt WC. The basic cation saturation ratio concept and lime and potassium recommendations on Delaware’s Coastal Plain soils. Soil Sci. Soc. Am. J. 1981;45, 544-549.
Olsen SR, Sommers LE. Phosphorus. In A.L Page et al. (ed.) Methods of soil analysis. Part 2. 2nd ed. Agron Monogr. 9. ASA and SSSA. Madison; 1982. pp. 403–430.
McLean EO, Hartwig RC, Eckert DJ, Triplett GB. Basic cation saturation ratios as a basis for fertilizing and liming agronomic crops. II. Field studies. Agron. J. 1983;75, 635-639.
Lindsey LE, Tilmon K, Michel A, Dorrance A. Soybean production. In L. E. Lindsey & P. R. Thomison (Eds.), Ohio agronomy guide (15th ed., Bulletin no. 472, The Ohio State University Extension; 2017. pp. 56–68.
Shukla MK, Lal R, Ebinger M. Determining soil quality indicators by factor analysis. Soil and Tillage Research. 2006;87(2), 194-204.
Abid M, Lal R. Tillage and drainage impact on soil quality: I. Aggregate stability, carbon and nitrogen pools. Soil and Tillage Research. 2008;100(1-2), 89-98.
Zhang G, Bai J, Xi M, Zhao Q, Lu Q, Jia J. Soil quality assessment of coastal wetlands in the Yellow River Delta of China based on the minimum data set. Ecological Indicators. 2016;66, 458-466.
Qiu X, Peng D, Wang H, Wang Z, Cheng S. Minimum data set for evaluation of stand density effects on soil quality in Larix principis-rupprechtii plantations in North China. Ecological Indicators. 2019;103, 236-247.
Zahedifar M. Assessing alteration of soil quality, degradation, and resistance indices under different land uses through network and factor analysis. Catena 106807, 2023. 222.
Zalewska M. The effect of various calcium, magnesium, potassium and hydrogensaturation of CEC on the yield and mineral composition of yellow lupine. Pol. J. Natur.Sci. 2003;15(3), 321-334.
Crozier CR, Hardy DH. Soil Facts: Soil Acidity and Liming for Agricultural Soils. AG-439-50, North Carolina Cooperative Extension, 2003.
Turan M, Horuz A. Bitki Besleme. Bitki Beslemenin Temel İlkeleri. Karaman MR (Ed.). Ankara; 2012. s. 123-347.
Culman S, Mann M, Sharma S, Tariq Saeed M, Fulford A, Lindsey L, Brooker A. “Converting between Mehlich-3, Bray P, and Ammonium Acetate Soil Test Values” (ANR-75). Ohioline. The Ohio State University. 2019. ohioline.osu.edu/factsheet/anr-75.
Horuz A, A Korkmaz Calibration of Nitrogen Soil Tests with Field Experiemts by Growing Corn. International Soil Congress on “Natural Resource Management for Sustainable Development” June 7-10, Erzurum-Turkey, 2004, pp:58-66
Anonymous. Interpretin A Soil test Report. 2017. www.agvise.com
Horuz A. Bafra ve Çarşamba Ovalarında Toprakların Azot Durumlarını Belirlemekte Kullanılan Bazı Kimyasal Yöntemlerin Mısır Bitkisi Yetiştirerek Tarla Denemeleriyle Kalibrasyonları. Doktora Tezi, Ondokuz Mayıs Üniversitesi Ziraat Fakültesi Toprak Anabilim Dalı, Samsun, 2002, 121s.
Mitscherlich EA. Das gesetz des Minimums und das gesetz des Abnehmenden Bodenertrages. Landw. Jahrb.1912;38: 537-552.
Spillmann,P. Beitrag zur langzeitig standsicheren konstruktion hoher abfalldeponien, Teil 1 und 2, Mu¨ll und Abfall 12; 1980. pp.311–317, 337–339.
Bray RH. Soil-Plant Relations: I. The quantitative relation of exchangeable potassium to crop yields and to crop response to potash additions. Soil Sci. 1944;58: 305-324.
Yurtsever N, Alkan B. Karadeniz bölgesi topraklarının fosfor ihtiyaçlarının tayininde kullanılan bazı toprak analiz metotlarının tarla denemeleriyle kalibrasyonu üzerinde bir araştırma. TÜBİTAK yayınları No: 220; Ankara, 1975.
Yurtsever N. Orta Anadolu Bölgesi Topraklarının Fosfor Statülerinin Tayininde Kullanılan Olsen Fosfor Analiz Metodunun Buğday Tarla Denemeleriyle Kalibrasyonu. Köy İşleri Kooperatifler Bakanlığı. Toprak ve Gübre Araştırma Enstitüsü Müdürlüğü Yayınları. Genel Yayın No:74 Rapor Yayın No:10; Ankara, 1978.
Arslan R. Trakya Koşullarında Ayçiçeğinin Azotlu Fosforlu Gübre İsteği ve Olsen Fosfor Analiz Metodunun Kalibrasyonu. Tarım ve Köyişleri Bakanlığı, Köy Hizmetleri Genel Müdürlüğü, Kırklareli Atatürk Araştırma Enstitüsü Yayınları Genel Yayın No:15, Rapor Serisi No:11; Kırklareli, 1989.
Özdemir O. Samsun ve Sinop İllerinde Yetiştirilen Ayçiçeği’nin Fosforlu Gübre İsteği ve Olsen Fosfor analiz Metodunun Kalibrasyonu. Tarım Orman ve Köyişleri Bakanlığı Köy Hizmetleri Genel Müdürlüğü. Samsun Araştırma Enstitüsü Müdürlüğü Yayınları. Genel Yayın No:54 Rapor Serisi No:48, 1989.
Rodrigez JB, Peterson GA. Westfall DG. Calibration of nitrogenand phosphorus soil test with yield of proso millet. Soil Sci. Am. J. 1989;53: 1731-1741.
Culman S, Fulford A, Camberato J, Steinke K. Tri-State Fertilizer Recommendations (for Corn, Soybean, Wheat, and Alfalfa) Bulletin. 974. College of Food, Agricultural, and Environmental Sciences. Columbus, OH: The Ohio State University. 2020. https://extensionpubs.osu.edu/content/sample/e974.pdf
Bouyoucos GJ. A Recalibration of The Hydrometer Method for Making Mechanical Analysis of Soils. Agronomy Journal. 1951;43: 434-438.
Tüzüner A. Toprak ve Su Analiz Laboratuvarları El Kitabı. T.C. Tarım ve Köy İşleri Bakanlığı, Köy Hizmetleri Genel Müdürlüğü, Ankara, 1990, s: 61-73.
Pimentel D. Soil erosion: a food and environmental threat. Environment, Development and Sustainability. 2006;8(1), 119-137.
Dewangan SK, Kumari L, Minj P, Kumari J, Sahu R. The effects of soil ph on soil health and environmental sustainability: A review. Journal of Emerging Technologies and Innovative Research (JETIR), (2023. p. 611-616.
Kacar B. Toprak Analizleri, 2. Baskı, Nobel Yayınları; Ankara, 2009, 467 s.
Richards LA. Diagnosis and improvement of saline and alkali soils. USD A Handbook No: 60. 1954.
Kumar A, Singh RP, Singh R. Soil pH management for sustainable agriculture. In Soil Acidity and Plant Growth; 2020. pp. 63-84.
Samiullah Y, Mohammad W. Soil pH and crop yield: A review. Plants; 2019;8(12), 568.
Anonymous. High Sodium Soil Effect On Plant Growth. 2025. https://cropnuts.com/high-sodium-soil-effect-on-plant-growth/ (Available:April 2025).
Horuz A, Korkmaz A, Akınoğlu G, Boz E. Bitkilerde demir klorozunun nedenleri ve giderilme yöntemleri. Toprak Bilimi ve Bitki Besleme Dergisi. 2016;4(1), 32-42.
Anonymous. Interpreting A Soil test report. 2019. www.agvise.com. (Erişim Ocak 2025)
Maas EV. Salt Tolerance of Plants. Applied Agricultural Research. 1986;1(1), 12-26.
Northwood ND, Benson MN. Interpreting Soil Test Report. John Lee/John Breker Soil Scientist AGVISE Laboratories. 701-739-0521–cell, 1976. www.agvise.com.
Kacar B. Toprak Analizleri. Bitki ve Toprağın Kimyasal Analizleri III. A.Ü. Zir. Fak. Eğitim, Araştırma ve Geliştirme Vakfı Yayınları No: 3, Ankara, 1994, 705 s.
Kacar B, Katkat V. Bitki Besleme. Nobel Yayınları: 849, Ankara, 2009. 645 s.
Ülgen N, Yurtsever N. Türkiye Gübre ve Gübreleme Rehberi (4. Baskı). T.C. Başbakanlık Köy Hizmetleri Genel Müdürlüğü Toprak ve Gübre Araştırma Enstitüsü Müdürlüğü Yayınları, Genel Yayın No: 209, Teknik Yayınlar No: T.66, Ankara, 1995.230 s..
Purnamasari L, Rostaman T, Widowati LR, Anggria L. Comparison of appropriate cation exchange capacity (CEC) extraction methods for soils from several regions of Indonesia. IOP Conf. Ser. Earth Environ. Sci.; Vol. 648. No. 1. IOP Publishing ; 2021. doi:10.1088/1755- 1315/648/1/012209
Mullen R, Lentz E, Watson M. Soil Acidity and Liming for Agronomic Production” (AGF-505-07). Ohioline, The Ohio State University. 2016. ohioline.osu.edu/factsheet/AGF-505-07.
Fageria NK, Baligar VC. Ameliorating soil acidity of tropical Oxisols by liming for sustainable crop production. Adv Agron. 2008;99, 345–399.
Kunhikrishnan A, Thangarajan R, Bolan NS, Xu Y, Mandal S, Gleeson DB, Naidu R. Functional relationships of soil acidification, liming, and greenhouse gas flux. Advances in agronomy. 2016; 139, 1-71.
Rippy JFM, Nelson PV, Hesterberg DL, Kamprath EJ. Reaction times of twenty limestones. Commun. Soil Sci. Plant Anal. 2007;38(13–14), 1775–1783.
Syed M, Soreanu G, Falletta P, Béland M. Removal of hydrogen sulfide from gas streams using biological processes. A review. Can. Biosyst. Eng. 2006;(48): 1-14.
Patel K, Kapadia C, Patel N, Patel D, Parmar PR, Datta R, Ansari MJ Effect of supplementing Sulphur-oxidizing bacteria with different Sulphur sources on the growth and development of chickpea (Cicer arietinum). Plant Stress. 2024; 12. 100433.
Soper RJ, Racz GJ, Fehr PI. Nitrate nitrogen in the soil as a means of predicting the fertilizer nitrogen requirements of barley. Can. J. Soil Sci. 1971;51(1), 45–49.
Soper RJ. Isotope studies on wheat fertilization. Technical report series no. 157. International Atomic Energy Agency, Vienna. 1974.
Nelson DW, Sommers LE. A simple digestion procedure for estimation of total nitrogen in eoils and sediments. J. Environ quality. 1972;1(4), 423–425.
Kacar B. Bitki ve Toprağın Kimyasal Analizleri: II, Bitki Analizleri. Ankara Üniversitesi Ziraat Fakültesi Yayınları: No 453, Uygulama Kılavuzu:155; Ankara, 1972.
Kacar B, İnal A.. Bitki Analizleri, Nobel Yayın Dağıtım Ltd. Şti. Yayınları, Yayın No: 1241; Fen Bilimleri: 63, (I. Basım); Ankara, 2008.
Bray RH, Kurtz LT. Determination of total, organic and available forms phosphorus in soils. Soil Science. 1945;59, 45-49.
Olsen SR, Cole, CV, Watanabe FS, Dean LA. Estimation of Available Phosphorus in Soil by Extraction with Sodium Bicarbonate. Government Printing Office: Washington D.C., U.S., USDA circular no. 939; 1954. pp.1–19.
Erdil A, Horuz A, Korkmaz A, Akınoğlu G. Topraklarda amonyum fiksasyonu ve etkileri. International Journal of Life Sciences and Biotechnology. 2018;1(1), 17-28.
Pizer NH. Some Advisory Aspect. Soil Potassium and Magnesium.Tech.Bull. No: 14:184, 1967.
Fawzi AFA, El. Fouly MM. Soil and Leaf Analysis of Potassium in Different Areas in Egypt. Editor. A. Sourat and M. M. El. Fouly. Role of Potassium in Crop Production. Ipı, Bern:73 – 80. 1980.
LaBarge G, Lindsey L. Interpreting a soil test report. AGF-514. Ohio State University Extension. 2012. Available at http://ohioline.osu.edu/agffact/ pdf/ (verified 29 Oct. 2012)
Loué A. Diagnastis Pediaire de Prospection. Etudes sur la Nutrition et la Fertilisation Potossiques de la Vigne. Societe Commerciale des Potasses d’Alsace Services Agronomiques; 1968. pp. 31-41.
Sharma RK, Cox MS, Oglesby C, Dhillon JS. Revisiting the role of sulfur in crop production: a narrative review. J. Agric. Food Res. 2024;15, 101013.
Fox RH, Goldsmith R, Hampton IF, Lewis HE. The nature of the increase in sweating capacity produced by heat acclimatization. J. Physiol. 1964;171, 368-376.
Yakupoğlu T, Özdemir N. Tuzluluk Ve Alkaliliğin Toprağın Bazı Fiziksel Özellikleri Üzerine Etkileri. Anadolu Tarım Bilimleri Dergisi. 2007;22(1), 132-138.
Patterson AR. Consideration of soil sodicity when assessing land application. Environmental & health protection guidelines technical sheet reference 01/7. 2001. URL:www.dlg.gov.au/dlg/dlghome/document/septicsafe/draftsodicity,pdf. (Erişim tarihi: Mart 2025).
Rengasamy P, Olsson KA. Irrigation and Sodicity. Aust. J. Soil Res. 1993;31, 821-837.
Gordon I. Defining soil salinity and its potantial implications for road design in Queensland. 2003. URL:http.//www.mainroads.qld.gov.au
Hughes B, Davenport D, Dohle L. Standard soil test methods and guidelines for interpretation of soil results. No 140916, Government of South Australia, 1996. www.standard-tests-and-interpretation-guidelines. (Erişim, Nisan, 2025).
Kacar B, Katkat AV. Bitki Besleme. Nobel Yayın Dağıtım, Ankara, 2006.
Purvis ER, Peterson NK. Method of Soil and Plant Analysis for Molybdenum. Soil. Sci. 1956;81, 223-228.
Johnson CM, Ulrich A. Analytical methods filr use in plant analysis. California Agric. Expt. Stn. Bull. 766, 1959.
Horuz A, Kızılkaya R, Sürücü A, Korkmaz A. Samsun İli Kürtün Vadisinde Yetiştirilen Şeftali Ağaçlarının Demir Beslenme Durumu. Karadeniz Bölgesi Tarım Semp. 4-5 Ocak 1999. Samsun, 1999, Cilt II. s. 478-489.
Horuz A, Korkmaz A, Akınoğlu G, Boz E. Bitkilerde demir klorozunun nedenleri ve giderilme yöntemleri. Toprak Bilimi ve Bitki Besleme Dergisi. 2016;4(1), 32-42.
Lindsay WL, Norvell WA. Development of DTPA soil test for zinc, iron, manganese and copper. Soil Sci. Am. J. 1978;42, 421-428.
FAO. Micronutrient, assesment at the country level: an international study. FAO Soils Bulletin 63, Rome, 1990.
Halvorson AD, Bergman JW. Zinc fertilization of dry beans on soils high in available phosphorus. Montana Agricultural Experiment Station, Bozeman, Montana, and Northern Plains Soil and Water Research Center. USDA-ARS, Sidney, Montana. Bulletin 751, 1983.
Fagaria NK, Baligar VC, Wright RJ. Soil environment and root growth dynamics of field crops. Recent Res. Devl. Agron., 1997;1: 15-58.
Jones, J.B. (2001). Laboratory guide for conducting soil tests and plant analysis. CRC press, Boca Raton, London New York Washington, D.C.
Follet RH. Zn, Fe, Mn and Cu in Colorado Soils. Ph. D. Dissertation. Colorado State University, Colorado, 1969.
Havlin JL, Beaton JD, Tisdale SL, Nelson WL. Soil Fertility and Fertilizers: An Introduction to Nutrient Management. 6th ed. Upper Saddle River, N. J.: Prentice Hall, 1999.
Wolf B. The determination of boron in soil extracts, plant materials, composts, manures, water and nutrient solutions. Communications in Soil Science and Plant Analysis. 1971;2(5), 363-374.
Eriksson J, Dahlin SA Sohlenius G, Söderström M, Öborn I. Spatial patterns of concentrations of essential trace elements in Swedish soils and crops. Geoderma Regional. 2017;10, 163–174.
Grigg JL. The distribution of molybdenum in the soils of New Zealand. N. Z. J. Agric. Res. 3: 69–86. Gupta U C and Lipsett J. 1981. Molybdenum in soils, plants and animals. Adv. Agron. 1960;34: 73– 115.
Ribera AE, Mora MDLL, Ghiselini V, Demanet R, Gallardo F. Phosphorus-molybdenum relationship in soil and red clover (Trifolium pratense L.) on an acid Andisol. Revista de la ciencia del suelo y nutrición vegeta. 2010;10(1), 78-91.
Velmurugan R, Mahendran PP, Wani SP, Uttam K, Prabhavathi M. Molybdenum status and critical limit in the soil for green gram (Vigna radiata) growing in Madurai and Sivagangai districts of Tamil Nadu, India. Soil Science and Plant Nutrition. 2013;59(2), 229-236.
Bhattachariyya BK, Mukherjee D, Ali AH, Trivedi N, Bhatterjee PK, Mandal B. Micronutrient in Soils and Plants of West Bengal, Directorate of Agriculture, Government of West Bengal, Calcutta. 1998.
Sharma Barua, NC, Chakraborty M, Dutta H. Proceedings of a Workshop on Micronutrients, 22–23 January. IBFEP-HFC Ltd, Bhubaneswar, India. 1992.
Adhikari S, Saha PK, Chatterjee DK. Available boron, cobalt and Mo status in some fresh water fish pond soils of Orissa in relation to soil characteristics. J. Indian Soc. Soil Sci. 1997;45, 583–584.
Kanwar JS, Randhawa NS. Micronutrient Research in Soils and Plants, in India: A Review. Technical Bulletin 50. Indian Council of Agricultural Research, New Delhi, 1974.
Grigg JL. Determination of the available molybdenum in soils. N. J. Sci. Tech. Section A. 1953; 34(A): 405– 414.
Axelson U, Söderström M, Jonsson A. Risk assessment of high concentrations of molybdenum in forage. Environmental Geochemistry and Health, 2018;40, 2685-2694.
Blood DC, Henderson JA, Radostits OM. Diseases caused by deficiencies of mineral nutrients. In Veterinary medicine, London: Bailliere Tindall; 1979. pp. 868–880.
Majak W, Steinke D, McGillivray J, Lysyk T. Clinical signs in cattle grazing high molybdenum forage. Journal of Range Management. 2004;57(3), 269–274.
Gupta UC. Soil and plant factors affecting molybdenum uptake by plants. In U. C. Gupta (Ed.), Molybdenum in agriculture, Cambridge: Cambridge University Press; 1997. pp. 71–91.
Anderson AJ. Molybdenum deficiencies in legumes in Australia. Soil Science. 1956;81, 173–192.
Sillanpaa M. Micronutrients and nutrient status of soils: A global study. FAO Soils Bull. 48. 1982. pp. 343–409.
Lombin G. Evaluation of the micronutrient fertility of Nigeria's semi-arid savanna soils: Boron and molybdenum. Soil Sci. Plant Nutr. 1985;31(1), 13–25.
Horneck, D.A., Sullivan, D.M., Owen, J.S., Hart, J.M. (2011). Soil Test Interpretation Guide. EC1478, Oregon State University Extension Service, Corvallis. https://www.scirp.org/reference
Engel RE, Bruckner PL, Eckhoff J. Critical tissue concentration and chloride requirements for wheat. Soil Science Society of America Journal. 1998;62: 401-405.
Sharma S, Kumar A. Cobalt content and its availability in soils: A review International Journal of Applied Research. 2024;10(12), 299-308
Carrigan RA, Erwin TC Cobalt determination in soils by spectrographic analysis following chemical preconcentration. Soil Science Society of America Journal. 1951;15(C), 145-149.
Hart ML, Deijs WB. Investigations of cobalt content of grassland. Phosphorsaure. 1952;12, 370-379.
Kloke A. Orientierungsdaten fur tolerierbare gesa mtgehalte einiger elemente in kulturboden. Mitteilungen VDLUFA. 1980;1(3), 9-11.
Palit S, Sharma A, Talukder G. Effects of cobalt in plants Bot. Rev. 1994;60, 149-181.
Roy AK, Srivastava LL. Removal of some micronutrients by forage crops in soils. Indian Society of Soil Science. 1988;36, 133-37.
Gál J, Markiewicz-Patkowska J, Hursthouse A, Tatner P. Metal uptake by woodlice in urban soils. Ecotoxicology and Environmental Safety. 2008;69(1), 139-149.
EGVM. Expert Group on Vitamins and Minerals (EGVM). Safe Upper Levels for Vitamins and Minerals.Food Standards Agency, London. 2003.
Jayakumar K, Aksah P. Soil applied cobalt alters the growth parameters and dry matters production of Bhendi (Abelmoschus esculentus L.). Innovations in Agriculture. 2022;5, e32843.
Abdulateef AA, Al-Robai HA, Aldaini LJK. Mobility and Fractionation of Cobalt in Some Calcareous Soils in Iraqi Centre. South Asian Res. J. Agri. Fish. 2023;5(6), 81-87.
Alloway BJ. Heavy Metal in Soils Springer Third Edition (UK: Springer); 2013.
Tsamo C, Yerima NE, Mua EN. Evaluation of the transport and mobility of Co(II) in soils fromagricultural, waste dump and an automobile repair shop sites in Bambili-Cameroon. Environmental Chemistry and Ecotoxicology. 2022;2(4), 29-36.
Jiang M, Wang K, Wang Y, Zhao Q, Wang W. Technologies for the cobalt-contaminated soil remediation: A review. Science of The Total Environment. 2022;813, 151908.
Khalid S, Shahid M, Naz R, Niazi NK, Al-Kahtani AA, ALOthman ZA, Murtaza B. Cobalt in Soil-Plant-Human System: A Data-Analysis Review, 2023.
Kandil H, Ihab MF, El-Maghraby A. Effect of cobalt level and nitrogen source on quantity and quality of soybean plant. J. Basic Applied Sci. Res. 2013;3(12), 185-192.
Sahay N, Singh SP. Effect of cobalt application on growth, yield attributes and yield of lentil cultivars. Annals Plant and Soil Res. 2012;14(1), 39- 41.
Girling CA. Selenium in agriculture and the environment. Agriculture, Ecosystems & Environment. 1984;11(1), 37-65.
Zayed AM, Terry N. Selenium volatilization in roots and shoots: effects of shoot removal and sulfate level. Journal of Plant Physiology. 1994;143(1), 8-14.
Underwood FJ. Selenium. In Trace Elements in Human and Animal Nutrition. Academic Press, New York; 1977. pp. 302–306.
Dhillon KS, Dhillon SK. Distribution of seleniferous soils in north-west India and associated toxicity problems in the soil–plant–animal–human continuum. Land Contam. Reclam. 1997;5, 313–322.
Frank R, Stonefield KI, Suda P. Metals in agricultural soils of Ontario. II. Can. J. Soil Sci. 1979;59, 99-103.
Rani N, Dhillon KS, Dhillon SK. Critical levels of selenium in different crops grown in an alkaline silty loam soil treated with selenite-Se. Plant and Soil.2005;277, 367-374.
Pande J, Srivastava PC, Singh SK. Plant availability of Ni as influenced by farmyard manure and its critical toxic limits in French bean. Journal of Plant Nutrition. 2012;35, 384–395.
Singh RP, Mishra SK. Available macronutrients (N, P, K and S) in the soils of Chiraigaon block of district Varanasi (U.P.) in relation to soil characteristics, Indian Journal of Soil Research. 2012;3, 97-100.
Cempel M, Nikel G. Nickel: A review of its sources and environmental toxicology. Polish Journal of Environmental Studies.2006;15, 375-382.
Zhu H, Zhao Y, Nan F, Duan Y, Bi R. Relative influence of soil chemistry and topography on soil available micronutrients by structural equation modelling. Journal of Soil Science and Plant Nutrition. 2016;16, 1038–1051.
WHO. Chapter 6.10 Nickel General description [WWW Document]. Air Qual. Guidel. - Second Ed.2000. URL https://www.euro.who.int/data/assets/pdffile (Accessed 4 May 2024).
Antoniadis V, Shaheen SM, Boersch J, Frohne T, Du Laing G, Rinklebe J. Bioavailability and risk assessment of potentially toxic elements in garden edible vegetables and soils around a highly contaminated former mining area in Germany. Journal of Environmental Management. 2017;86, 192-200.
Hussain M, Farooq M, Nawaz A, Al-Sadi AM, Solaiman ZM, Alghamdi SS, Siddique KH. Biochar for crop production: potential benefits and risks. Journal of Soils and Sediments. 2017;17(3), 685-716.
WHO (World Health Organization). Permissible Limits of Heavy Metals in Soil and Plants. Geneva, Switzerland. 1996.
Hussain J, Husain M, Arif M, Gupta N. Gupta Studies on heavy metal contamination in Godavari river basin. Appl. Water Sci. 2017;7, 4539-4548.
Kumar, D., Ramani, V.P., Patel, K.C., Shukla, A.K. (2021). Establishing critical limits for nickel in soil and plant for predicting the response of spinach (Spinacia oleracea). Journal of the Indian Society of Soil Science, 69(1), 105-110.
Referanslar
İbrikçi H, Gülüt KY, Güzel N, Büyük G. Gübrelemede Bitki Analiz Teknikleri. Türkiye 3. Ulusal Gübre Kongresi, Tarım-Sanayi-Çevre, 11-13 Ekim 2004, Tokat, s. 1187-1214.
Aktaş M. Bitki Besleme ve Toprak Verimliliği. Ankara Üniversitesi. Ziraat Fakültesi Yayınları No: 1361 Ders Kitabı: 395. 1994.
McLean EO, Carbonell MD. Calcium, magnesium and potassium saturation ratios intwo soils and their effects upon yields and nutrient contents of German millet and alfalfa. Soil Sci. Soc. Am. Proc. 1972;36: 927-931.
Liebhardt WC. The basic cation saturation ratio concept and lime and potassium recommendations on Delaware’s Coastal Plain soils. Soil Sci. Soc. Am. J. 1981;45, 544-549.
Olsen SR, Sommers LE. Phosphorus. In A.L Page et al. (ed.) Methods of soil analysis. Part 2. 2nd ed. Agron Monogr. 9. ASA and SSSA. Madison; 1982. pp. 403–430.
McLean EO, Hartwig RC, Eckert DJ, Triplett GB. Basic cation saturation ratios as a basis for fertilizing and liming agronomic crops. II. Field studies. Agron. J. 1983;75, 635-639.
Lindsey LE, Tilmon K, Michel A, Dorrance A. Soybean production. In L. E. Lindsey & P. R. Thomison (Eds.), Ohio agronomy guide (15th ed., Bulletin no. 472, The Ohio State University Extension; 2017. pp. 56–68.
Shukla MK, Lal R, Ebinger M. Determining soil quality indicators by factor analysis. Soil and Tillage Research. 2006;87(2), 194-204.
Abid M, Lal R. Tillage and drainage impact on soil quality: I. Aggregate stability, carbon and nitrogen pools. Soil and Tillage Research. 2008;100(1-2), 89-98.
Zhang G, Bai J, Xi M, Zhao Q, Lu Q, Jia J. Soil quality assessment of coastal wetlands in the Yellow River Delta of China based on the minimum data set. Ecological Indicators. 2016;66, 458-466.
Qiu X, Peng D, Wang H, Wang Z, Cheng S. Minimum data set for evaluation of stand density effects on soil quality in Larix principis-rupprechtii plantations in North China. Ecological Indicators. 2019;103, 236-247.
Zahedifar M. Assessing alteration of soil quality, degradation, and resistance indices under different land uses through network and factor analysis. Catena 106807, 2023. 222.
Zalewska M. The effect of various calcium, magnesium, potassium and hydrogensaturation of CEC on the yield and mineral composition of yellow lupine. Pol. J. Natur.Sci. 2003;15(3), 321-334.
Crozier CR, Hardy DH. Soil Facts: Soil Acidity and Liming for Agricultural Soils. AG-439-50, North Carolina Cooperative Extension, 2003.
Turan M, Horuz A. Bitki Besleme. Bitki Beslemenin Temel İlkeleri. Karaman MR (Ed.). Ankara; 2012. s. 123-347.
Culman S, Mann M, Sharma S, Tariq Saeed M, Fulford A, Lindsey L, Brooker A. “Converting between Mehlich-3, Bray P, and Ammonium Acetate Soil Test Values” (ANR-75). Ohioline. The Ohio State University. 2019. ohioline.osu.edu/factsheet/anr-75.
Horuz A, A Korkmaz Calibration of Nitrogen Soil Tests with Field Experiemts by Growing Corn. International Soil Congress on “Natural Resource Management for Sustainable Development” June 7-10, Erzurum-Turkey, 2004, pp:58-66
Anonymous. Interpretin A Soil test Report. 2017. www.agvise.com
Horuz A. Bafra ve Çarşamba Ovalarında Toprakların Azot Durumlarını Belirlemekte Kullanılan Bazı Kimyasal Yöntemlerin Mısır Bitkisi Yetiştirerek Tarla Denemeleriyle Kalibrasyonları. Doktora Tezi, Ondokuz Mayıs Üniversitesi Ziraat Fakültesi Toprak Anabilim Dalı, Samsun, 2002, 121s.
Mitscherlich EA. Das gesetz des Minimums und das gesetz des Abnehmenden Bodenertrages. Landw. Jahrb.1912;38: 537-552.
Spillmann,P. Beitrag zur langzeitig standsicheren konstruktion hoher abfalldeponien, Teil 1 und 2, Mu¨ll und Abfall 12; 1980. pp.311–317, 337–339.
Bray RH. Soil-Plant Relations: I. The quantitative relation of exchangeable potassium to crop yields and to crop response to potash additions. Soil Sci. 1944;58: 305-324.
Yurtsever N, Alkan B. Karadeniz bölgesi topraklarının fosfor ihtiyaçlarının tayininde kullanılan bazı toprak analiz metotlarının tarla denemeleriyle kalibrasyonu üzerinde bir araştırma. TÜBİTAK yayınları No: 220; Ankara, 1975.
Yurtsever N. Orta Anadolu Bölgesi Topraklarının Fosfor Statülerinin Tayininde Kullanılan Olsen Fosfor Analiz Metodunun Buğday Tarla Denemeleriyle Kalibrasyonu. Köy İşleri Kooperatifler Bakanlığı. Toprak ve Gübre Araştırma Enstitüsü Müdürlüğü Yayınları. Genel Yayın No:74 Rapor Yayın No:10; Ankara, 1978.
Arslan R. Trakya Koşullarında Ayçiçeğinin Azotlu Fosforlu Gübre İsteği ve Olsen Fosfor Analiz Metodunun Kalibrasyonu. Tarım ve Köyişleri Bakanlığı, Köy Hizmetleri Genel Müdürlüğü, Kırklareli Atatürk Araştırma Enstitüsü Yayınları Genel Yayın No:15, Rapor Serisi No:11; Kırklareli, 1989.
Özdemir O. Samsun ve Sinop İllerinde Yetiştirilen Ayçiçeği’nin Fosforlu Gübre İsteği ve Olsen Fosfor analiz Metodunun Kalibrasyonu. Tarım Orman ve Köyişleri Bakanlığı Köy Hizmetleri Genel Müdürlüğü. Samsun Araştırma Enstitüsü Müdürlüğü Yayınları. Genel Yayın No:54 Rapor Serisi No:48, 1989.
Rodrigez JB, Peterson GA. Westfall DG. Calibration of nitrogenand phosphorus soil test with yield of proso millet. Soil Sci. Am. J. 1989;53: 1731-1741.
Culman S, Fulford A, Camberato J, Steinke K. Tri-State Fertilizer Recommendations (for Corn, Soybean, Wheat, and Alfalfa) Bulletin. 974. College of Food, Agricultural, and Environmental Sciences. Columbus, OH: The Ohio State University. 2020. https://extensionpubs.osu.edu/content/sample/e974.pdf
Bouyoucos GJ. A Recalibration of The Hydrometer Method for Making Mechanical Analysis of Soils. Agronomy Journal. 1951;43: 434-438.
Tüzüner A. Toprak ve Su Analiz Laboratuvarları El Kitabı. T.C. Tarım ve Köy İşleri Bakanlığı, Köy Hizmetleri Genel Müdürlüğü, Ankara, 1990, s: 61-73.
Pimentel D. Soil erosion: a food and environmental threat. Environment, Development and Sustainability. 2006;8(1), 119-137.
Dewangan SK, Kumari L, Minj P, Kumari J, Sahu R. The effects of soil ph on soil health and environmental sustainability: A review. Journal of Emerging Technologies and Innovative Research (JETIR), (2023. p. 611-616.
Kacar B. Toprak Analizleri, 2. Baskı, Nobel Yayınları; Ankara, 2009, 467 s.
Richards LA. Diagnosis and improvement of saline and alkali soils. USD A Handbook No: 60. 1954.
Kumar A, Singh RP, Singh R. Soil pH management for sustainable agriculture. In Soil Acidity and Plant Growth; 2020. pp. 63-84.
Samiullah Y, Mohammad W. Soil pH and crop yield: A review. Plants; 2019;8(12), 568.
Anonymous. High Sodium Soil Effect On Plant Growth. 2025. https://cropnuts.com/high-sodium-soil-effect-on-plant-growth/ (Available:April 2025).
Horuz A, Korkmaz A, Akınoğlu G, Boz E. Bitkilerde demir klorozunun nedenleri ve giderilme yöntemleri. Toprak Bilimi ve Bitki Besleme Dergisi. 2016;4(1), 32-42.
Anonymous. Interpreting A Soil test report. 2019. www.agvise.com. (Erişim Ocak 2025)
Maas EV. Salt Tolerance of Plants. Applied Agricultural Research. 1986;1(1), 12-26.
Northwood ND, Benson MN. Interpreting Soil Test Report. John Lee/John Breker Soil Scientist AGVISE Laboratories. 701-739-0521–cell, 1976. www.agvise.com.
Kacar B. Toprak Analizleri. Bitki ve Toprağın Kimyasal Analizleri III. A.Ü. Zir. Fak. Eğitim, Araştırma ve Geliştirme Vakfı Yayınları No: 3, Ankara, 1994, 705 s.
Kacar B, Katkat V. Bitki Besleme. Nobel Yayınları: 849, Ankara, 2009. 645 s.
Ülgen N, Yurtsever N. Türkiye Gübre ve Gübreleme Rehberi (4. Baskı). T.C. Başbakanlık Köy Hizmetleri Genel Müdürlüğü Toprak ve Gübre Araştırma Enstitüsü Müdürlüğü Yayınları, Genel Yayın No: 209, Teknik Yayınlar No: T.66, Ankara, 1995.230 s..
Purnamasari L, Rostaman T, Widowati LR, Anggria L. Comparison of appropriate cation exchange capacity (CEC) extraction methods for soils from several regions of Indonesia. IOP Conf. Ser. Earth Environ. Sci.; Vol. 648. No. 1. IOP Publishing ; 2021. doi:10.1088/1755- 1315/648/1/012209
Mullen R, Lentz E, Watson M. Soil Acidity and Liming for Agronomic Production” (AGF-505-07). Ohioline, The Ohio State University. 2016. ohioline.osu.edu/factsheet/AGF-505-07.
Fageria NK, Baligar VC. Ameliorating soil acidity of tropical Oxisols by liming for sustainable crop production. Adv Agron. 2008;99, 345–399.
Kunhikrishnan A, Thangarajan R, Bolan NS, Xu Y, Mandal S, Gleeson DB, Naidu R. Functional relationships of soil acidification, liming, and greenhouse gas flux. Advances in agronomy. 2016; 139, 1-71.
Rippy JFM, Nelson PV, Hesterberg DL, Kamprath EJ. Reaction times of twenty limestones. Commun. Soil Sci. Plant Anal. 2007;38(13–14), 1775–1783.
Syed M, Soreanu G, Falletta P, Béland M. Removal of hydrogen sulfide from gas streams using biological processes. A review. Can. Biosyst. Eng. 2006;(48): 1-14.
Patel K, Kapadia C, Patel N, Patel D, Parmar PR, Datta R, Ansari MJ Effect of supplementing Sulphur-oxidizing bacteria with different Sulphur sources on the growth and development of chickpea (Cicer arietinum). Plant Stress. 2024; 12. 100433.
Soper RJ, Racz GJ, Fehr PI. Nitrate nitrogen in the soil as a means of predicting the fertilizer nitrogen requirements of barley. Can. J. Soil Sci. 1971;51(1), 45–49.
Soper RJ. Isotope studies on wheat fertilization. Technical report series no. 157. International Atomic Energy Agency, Vienna. 1974.
Nelson DW, Sommers LE. A simple digestion procedure for estimation of total nitrogen in eoils and sediments. J. Environ quality. 1972;1(4), 423–425.
Kacar B. Bitki ve Toprağın Kimyasal Analizleri: II, Bitki Analizleri. Ankara Üniversitesi Ziraat Fakültesi Yayınları: No 453, Uygulama Kılavuzu:155; Ankara, 1972.
Kacar B, İnal A.. Bitki Analizleri, Nobel Yayın Dağıtım Ltd. Şti. Yayınları, Yayın No: 1241; Fen Bilimleri: 63, (I. Basım); Ankara, 2008.
Bray RH, Kurtz LT. Determination of total, organic and available forms phosphorus in soils. Soil Science. 1945;59, 45-49.
Olsen SR, Cole, CV, Watanabe FS, Dean LA. Estimation of Available Phosphorus in Soil by Extraction with Sodium Bicarbonate. Government Printing Office: Washington D.C., U.S., USDA circular no. 939; 1954. pp.1–19.
Erdil A, Horuz A, Korkmaz A, Akınoğlu G. Topraklarda amonyum fiksasyonu ve etkileri. International Journal of Life Sciences and Biotechnology. 2018;1(1), 17-28.
Pizer NH. Some Advisory Aspect. Soil Potassium and Magnesium.Tech.Bull. No: 14:184, 1967.
Fawzi AFA, El. Fouly MM. Soil and Leaf Analysis of Potassium in Different Areas in Egypt. Editor. A. Sourat and M. M. El. Fouly. Role of Potassium in Crop Production. Ipı, Bern:73 – 80. 1980.
LaBarge G, Lindsey L. Interpreting a soil test report. AGF-514. Ohio State University Extension. 2012. Available at http://ohioline.osu.edu/agffact/ pdf/ (verified 29 Oct. 2012)
Loué A. Diagnastis Pediaire de Prospection. Etudes sur la Nutrition et la Fertilisation Potossiques de la Vigne. Societe Commerciale des Potasses d’Alsace Services Agronomiques; 1968. pp. 31-41.
Sharma RK, Cox MS, Oglesby C, Dhillon JS. Revisiting the role of sulfur in crop production: a narrative review. J. Agric. Food Res. 2024;15, 101013.
Fox RH, Goldsmith R, Hampton IF, Lewis HE. The nature of the increase in sweating capacity produced by heat acclimatization. J. Physiol. 1964;171, 368-376.
Yakupoğlu T, Özdemir N. Tuzluluk Ve Alkaliliğin Toprağın Bazı Fiziksel Özellikleri Üzerine Etkileri. Anadolu Tarım Bilimleri Dergisi. 2007;22(1), 132-138.
Patterson AR. Consideration of soil sodicity when assessing land application. Environmental & health protection guidelines technical sheet reference 01/7. 2001. URL:www.dlg.gov.au/dlg/dlghome/document/septicsafe/draftsodicity,pdf. (Erişim tarihi: Mart 2025).
Rengasamy P, Olsson KA. Irrigation and Sodicity. Aust. J. Soil Res. 1993;31, 821-837.
Gordon I. Defining soil salinity and its potantial implications for road design in Queensland. 2003. URL:http.//www.mainroads.qld.gov.au
Hughes B, Davenport D, Dohle L. Standard soil test methods and guidelines for interpretation of soil results. No 140916, Government of South Australia, 1996. www.standard-tests-and-interpretation-guidelines. (Erişim, Nisan, 2025).
Kacar B, Katkat AV. Bitki Besleme. Nobel Yayın Dağıtım, Ankara, 2006.
Purvis ER, Peterson NK. Method of Soil and Plant Analysis for Molybdenum. Soil. Sci. 1956;81, 223-228.
Johnson CM, Ulrich A. Analytical methods filr use in plant analysis. California Agric. Expt. Stn. Bull. 766, 1959.
Horuz A, Kızılkaya R, Sürücü A, Korkmaz A. Samsun İli Kürtün Vadisinde Yetiştirilen Şeftali Ağaçlarının Demir Beslenme Durumu. Karadeniz Bölgesi Tarım Semp. 4-5 Ocak 1999. Samsun, 1999, Cilt II. s. 478-489.
Horuz A, Korkmaz A, Akınoğlu G, Boz E. Bitkilerde demir klorozunun nedenleri ve giderilme yöntemleri. Toprak Bilimi ve Bitki Besleme Dergisi. 2016;4(1), 32-42.
Lindsay WL, Norvell WA. Development of DTPA soil test for zinc, iron, manganese and copper. Soil Sci. Am. J. 1978;42, 421-428.
FAO. Micronutrient, assesment at the country level: an international study. FAO Soils Bulletin 63, Rome, 1990.
Halvorson AD, Bergman JW. Zinc fertilization of dry beans on soils high in available phosphorus. Montana Agricultural Experiment Station, Bozeman, Montana, and Northern Plains Soil and Water Research Center. USDA-ARS, Sidney, Montana. Bulletin 751, 1983.
Fagaria NK, Baligar VC, Wright RJ. Soil environment and root growth dynamics of field crops. Recent Res. Devl. Agron., 1997;1: 15-58.
Jones, J.B. (2001). Laboratory guide for conducting soil tests and plant analysis. CRC press, Boca Raton, London New York Washington, D.C.
Follet RH. Zn, Fe, Mn and Cu in Colorado Soils. Ph. D. Dissertation. Colorado State University, Colorado, 1969.
Havlin JL, Beaton JD, Tisdale SL, Nelson WL. Soil Fertility and Fertilizers: An Introduction to Nutrient Management. 6th ed. Upper Saddle River, N. J.: Prentice Hall, 1999.
Wolf B. The determination of boron in soil extracts, plant materials, composts, manures, water and nutrient solutions. Communications in Soil Science and Plant Analysis. 1971;2(5), 363-374.
Eriksson J, Dahlin SA Sohlenius G, Söderström M, Öborn I. Spatial patterns of concentrations of essential trace elements in Swedish soils and crops. Geoderma Regional. 2017;10, 163–174.
Grigg JL. The distribution of molybdenum in the soils of New Zealand. N. Z. J. Agric. Res. 3: 69–86. Gupta U C and Lipsett J. 1981. Molybdenum in soils, plants and animals. Adv. Agron. 1960;34: 73– 115.
Ribera AE, Mora MDLL, Ghiselini V, Demanet R, Gallardo F. Phosphorus-molybdenum relationship in soil and red clover (Trifolium pratense L.) on an acid Andisol. Revista de la ciencia del suelo y nutrición vegeta. 2010;10(1), 78-91.
Velmurugan R, Mahendran PP, Wani SP, Uttam K, Prabhavathi M. Molybdenum status and critical limit in the soil for green gram (Vigna radiata) growing in Madurai and Sivagangai districts of Tamil Nadu, India. Soil Science and Plant Nutrition. 2013;59(2), 229-236.
Bhattachariyya BK, Mukherjee D, Ali AH, Trivedi N, Bhatterjee PK, Mandal B. Micronutrient in Soils and Plants of West Bengal, Directorate of Agriculture, Government of West Bengal, Calcutta. 1998.
Sharma Barua, NC, Chakraborty M, Dutta H. Proceedings of a Workshop on Micronutrients, 22–23 January. IBFEP-HFC Ltd, Bhubaneswar, India. 1992.
Adhikari S, Saha PK, Chatterjee DK. Available boron, cobalt and Mo status in some fresh water fish pond soils of Orissa in relation to soil characteristics. J. Indian Soc. Soil Sci. 1997;45, 583–584.
Kanwar JS, Randhawa NS. Micronutrient Research in Soils and Plants, in India: A Review. Technical Bulletin 50. Indian Council of Agricultural Research, New Delhi, 1974.
Grigg JL. Determination of the available molybdenum in soils. N. J. Sci. Tech. Section A. 1953; 34(A): 405– 414.
Axelson U, Söderström M, Jonsson A. Risk assessment of high concentrations of molybdenum in forage. Environmental Geochemistry and Health, 2018;40, 2685-2694.
Blood DC, Henderson JA, Radostits OM. Diseases caused by deficiencies of mineral nutrients. In Veterinary medicine, London: Bailliere Tindall; 1979. pp. 868–880.
Majak W, Steinke D, McGillivray J, Lysyk T. Clinical signs in cattle grazing high molybdenum forage. Journal of Range Management. 2004;57(3), 269–274.
Gupta UC. Soil and plant factors affecting molybdenum uptake by plants. In U. C. Gupta (Ed.), Molybdenum in agriculture, Cambridge: Cambridge University Press; 1997. pp. 71–91.
Anderson AJ. Molybdenum deficiencies in legumes in Australia. Soil Science. 1956;81, 173–192.
Sillanpaa M. Micronutrients and nutrient status of soils: A global study. FAO Soils Bull. 48. 1982. pp. 343–409.
Lombin G. Evaluation of the micronutrient fertility of Nigeria's semi-arid savanna soils: Boron and molybdenum. Soil Sci. Plant Nutr. 1985;31(1), 13–25.
Horneck, D.A., Sullivan, D.M., Owen, J.S., Hart, J.M. (2011). Soil Test Interpretation Guide. EC1478, Oregon State University Extension Service, Corvallis. https://www.scirp.org/reference
Engel RE, Bruckner PL, Eckhoff J. Critical tissue concentration and chloride requirements for wheat. Soil Science Society of America Journal. 1998;62: 401-405.
Sharma S, Kumar A. Cobalt content and its availability in soils: A review International Journal of Applied Research. 2024;10(12), 299-308
Carrigan RA, Erwin TC Cobalt determination in soils by spectrographic analysis following chemical preconcentration. Soil Science Society of America Journal. 1951;15(C), 145-149.
Hart ML, Deijs WB. Investigations of cobalt content of grassland. Phosphorsaure. 1952;12, 370-379.
Kloke A. Orientierungsdaten fur tolerierbare gesa mtgehalte einiger elemente in kulturboden. Mitteilungen VDLUFA. 1980;1(3), 9-11.
Palit S, Sharma A, Talukder G. Effects of cobalt in plants Bot. Rev. 1994;60, 149-181.
Roy AK, Srivastava LL. Removal of some micronutrients by forage crops in soils. Indian Society of Soil Science. 1988;36, 133-37.
Gál J, Markiewicz-Patkowska J, Hursthouse A, Tatner P. Metal uptake by woodlice in urban soils. Ecotoxicology and Environmental Safety. 2008;69(1), 139-149.
EGVM. Expert Group on Vitamins and Minerals (EGVM). Safe Upper Levels for Vitamins and Minerals.Food Standards Agency, London. 2003.
Jayakumar K, Aksah P. Soil applied cobalt alters the growth parameters and dry matters production of Bhendi (Abelmoschus esculentus L.). Innovations in Agriculture. 2022;5, e32843.
Abdulateef AA, Al-Robai HA, Aldaini LJK. Mobility and Fractionation of Cobalt in Some Calcareous Soils in Iraqi Centre. South Asian Res. J. Agri. Fish. 2023;5(6), 81-87.
Alloway BJ. Heavy Metal in Soils Springer Third Edition (UK: Springer); 2013.
Tsamo C, Yerima NE, Mua EN. Evaluation of the transport and mobility of Co(II) in soils fromagricultural, waste dump and an automobile repair shop sites in Bambili-Cameroon. Environmental Chemistry and Ecotoxicology. 2022;2(4), 29-36.
Jiang M, Wang K, Wang Y, Zhao Q, Wang W. Technologies for the cobalt-contaminated soil remediation: A review. Science of The Total Environment. 2022;813, 151908.
Khalid S, Shahid M, Naz R, Niazi NK, Al-Kahtani AA, ALOthman ZA, Murtaza B. Cobalt in Soil-Plant-Human System: A Data-Analysis Review, 2023.
Kandil H, Ihab MF, El-Maghraby A. Effect of cobalt level and nitrogen source on quantity and quality of soybean plant. J. Basic Applied Sci. Res. 2013;3(12), 185-192.
Sahay N, Singh SP. Effect of cobalt application on growth, yield attributes and yield of lentil cultivars. Annals Plant and Soil Res. 2012;14(1), 39- 41.
Girling CA. Selenium in agriculture and the environment. Agriculture, Ecosystems & Environment. 1984;11(1), 37-65.
Zayed AM, Terry N. Selenium volatilization in roots and shoots: effects of shoot removal and sulfate level. Journal of Plant Physiology. 1994;143(1), 8-14.
Underwood FJ. Selenium. In Trace Elements in Human and Animal Nutrition. Academic Press, New York; 1977. pp. 302–306.
Dhillon KS, Dhillon SK. Distribution of seleniferous soils in north-west India and associated toxicity problems in the soil–plant–animal–human continuum. Land Contam. Reclam. 1997;5, 313–322.
Frank R, Stonefield KI, Suda P. Metals in agricultural soils of Ontario. II. Can. J. Soil Sci. 1979;59, 99-103.
Rani N, Dhillon KS, Dhillon SK. Critical levels of selenium in different crops grown in an alkaline silty loam soil treated with selenite-Se. Plant and Soil.2005;277, 367-374.
Pande J, Srivastava PC, Singh SK. Plant availability of Ni as influenced by farmyard manure and its critical toxic limits in French bean. Journal of Plant Nutrition. 2012;35, 384–395.
Singh RP, Mishra SK. Available macronutrients (N, P, K and S) in the soils of Chiraigaon block of district Varanasi (U.P.) in relation to soil characteristics, Indian Journal of Soil Research. 2012;3, 97-100.
Cempel M, Nikel G. Nickel: A review of its sources and environmental toxicology. Polish Journal of Environmental Studies.2006;15, 375-382.
Zhu H, Zhao Y, Nan F, Duan Y, Bi R. Relative influence of soil chemistry and topography on soil available micronutrients by structural equation modelling. Journal of Soil Science and Plant Nutrition. 2016;16, 1038–1051.
WHO. Chapter 6.10 Nickel General description [WWW Document]. Air Qual. Guidel. - Second Ed.2000. URL https://www.euro.who.int/data/assets/pdffile (Accessed 4 May 2024).
Antoniadis V, Shaheen SM, Boersch J, Frohne T, Du Laing G, Rinklebe J. Bioavailability and risk assessment of potentially toxic elements in garden edible vegetables and soils around a highly contaminated former mining area in Germany. Journal of Environmental Management. 2017;86, 192-200.
Hussain M, Farooq M, Nawaz A, Al-Sadi AM, Solaiman ZM, Alghamdi SS, Siddique KH. Biochar for crop production: potential benefits and risks. Journal of Soils and Sediments. 2017;17(3), 685-716.
WHO (World Health Organization). Permissible Limits of Heavy Metals in Soil and Plants. Geneva, Switzerland. 1996.
Hussain J, Husain M, Arif M, Gupta N. Gupta Studies on heavy metal contamination in Godavari river basin. Appl. Water Sci. 2017;7, 4539-4548.
Kumar, D., Ramani, V.P., Patel, K.C., Shukla, A.K. (2021). Establishing critical limits for nickel in soil and plant for predicting the response of spinach (Spinacia oleracea). Journal of the Indian Society of Soil Science, 69(1), 105-110.
