References
Agrawal H.P. 1992. Assessing the micronutrient requirement of winter wheat. Communications in Soil Science and Plant Analysis, 23(17-20): 2555-2568.
Anonymous. 2010. Agricultural Statistics. Volume 2. Ministry of Agricultural Jihad, Department of Planning and Economy, Bureau of Statistics and Information Technology, 389p. (In Persian)
Behera S.K., and Singh, D. 2010. Fractions of Iron in Soil under a long-term experiment and their contribution to iron availability and uptake by maize- wheat cropping sequence. Communications in Soil Science and Plant Analysis, 41: 1538-1550.
Borges M., DeMello W.V., Abrahao A.P., Jordao C.P., and Simas N.B. 2001. Methods for evaluation of easily reducible iron and manganese in paddy soils. Communications in Soil Science and Plant Analysis, 32: 3009-3022.
Çelik H., and Katkal A.V. 2007. Some parameters in relation to iron nutrition status of peach orchards. Journal of Biological and Environmental Sciences, 1 (3): 111-115.
Derek R., and Philips J.P. 1987. Rapid assay for microbially reducible ferric iron in equatic sediments. Applied and Environmental Microbiology, 53 (7): 1536-1540.
DSantiago A., Diaz I., and Delgado A. 2008. Predicting the incidence of iron deficiency chlorosis from hydroxylamine-extractable iron in soil. Soil Science Society of America Journal, 72: 1493-1499.
Emami M. 2011. Comparison of the evaluation methods to determine Fe nutritional status in Golestan province peach orchards. MSc Thesis, Soil Science Department. Gorgan University of Agricultural Science and Natural Resources, Gorgan. Iran. 105p. (in Persian)
Filgueiras A.V., Lavilla I., and Bendicho C. 2002. Chemical sequential extraction for metal partitioning in environmental solid samples. Journal of Environmental Monitoring, 4 (6): 823-857.
Hemantaranjam A., and Grag O.K. 1988. Iron and zinc fertilization with reference to the grain quality of Triticum aestivum L. Journal of Plant Nutrition, 11: 1439-1450.
Jones J.B. Jr. and Case V.W. 1990. Sampling, handling, and analyzing plant tissue samples. In: Westerman, RL. (Eds.), Soil Testing and Plant Analysis. Soil Science Society of America, Inc. Madison, WI, pp. 25-44.
Li M., Hue N.V., and Hussain S.K.G. 1997. Changes of metal by organic amendments to Hawaii soils. Communications in Soil Science and Plant Analysis, 28 (3-5): 381-394.
Lion L.W., Altmann R.S., and Leckie J.O. 1982. Trace metal adsorption characteristics of estuarine particulate matter: Evaluation of contributions of Fe/Mn oxide and organic surface coatings. Environmental Science and Technology, 16: 660-666.
Ma B.L., Morrison M.J., and Voldeng H.D. 1995. Leaf greenness and photosynthetic rates in soybean. Crop Science, 35(5): 1411-1414.
Ma Y.B., and Uren N.C. 1995. Application of a new fractionation scheme for heavy metals in soils. Communications in Soil Science and Plant Analysis, 26(19-20): 3291-3303.
Marquard R.D., and Tipton J.L. 1987. Relationship between extractable chlorophyll and an in situ method to estimate leaf greenness. HortScience, 22(6): 1327-1329.
Miller W.P., Martens D.C., and Zelazny L.W. 1986. Effect of sequence in extraction of trace metals from soils. Soil Science Society of America Journal, 50(3): 598-601.
Monge E., Perez C., Pequerul A., Madero P., and Val J. 1993. Effect of iron chlorosis on mineral nutrition and lipid composition of thylakoid biomembrane in Prunus persica (L.) Bastch. Plant and Soil, 154: 97- 102.
Mortvedt J.J. 1991. Correcting iron deficiencies in annual and perennial plants: Present technologies and future prospects. Plant and Soil, 130(1-2): 273-279.
Okazaki M., Takamidoh K., and Yamane I. 1986. Adsorption of heavy metal cations on hydrated oxides and oxides of iron and aluminum with different crystallinities. Soil Science and Plant Nutrition, 32(4): 523-533.
Page A.L., Miller R.H., and Keeney D.R. 1982. Methods of soil analysis, Part 2. 2nd ed. Agron. Monogr. 9 ASA, Madison, WI, 1187p.
Reyhanitabar A., Karimian N., Muazardalan M., Savaghebi G.R., and Ghannadha MR. 2006. Zinc fractions of selected calcareous soils of Tehran province and their relationships with soil characteristics. Journal of Sciences and Technology of Agriculture and Natural Resources, 3: 125-128. (In Persian)
Salardini A.A. 2005. Soil Fertility. University of Tehran Press, Tehran, Iran. 434p. (in Persian)
SAS. Institute Inc. 1999. SAS/ETS Users Guide. Version 8. Cary, NC. USA.
Scharf P.C., Brouder S.M., and Hoeft R.G. 2006. Chlorophyll meter readings can predict nitrogen need and yield response of corn in the north-central USA. Agronomy Journal, 98(3): 655-665.
Shuman L.M. 1991. Chemical fractions of micronutrients in soils. In: Mortve, J.J., Cox F.R., Shuman L.M. and Awetch R.M. (Eds.). Micronutrients in Agriculture. SSSA, Madison, WI, pp. 113-144.
Shuman L.M. 1988. Effect of organic matter on the distribution of Manganese, Copper, Iron, and Zinc in soil fractions. Soil Science, 146(3): 192-198.
Shuman L. M. 1985. Fractionation method for soil microelements. Soil Science, 140(1): 11-22.
Sims J.L., and Patrick W.H. 1978. The distribution of micronutrient cations in soil under conditions of varying redox potential and pH. Soil Science Society of America Journal, 42(2): 258-262.
Singh J.P., Karwasra S.P.S., and Singh M. 1988. Distribution and forms of Copper, Iron, Mangenese and Zinc in calcareous soils of India. Soil Science, 146(5): 359-366.
Singhal S. K., and Rattan R. K. 1995. Soil zinc fractions and their availability in some Inceptisols and Entisols. Journal of the Indian Society of Soil Science, 43(1): 80-83.
Tessier A., Campbell P.G., and Bisson M. 1979. Sequential extraction procedure for the speciation of particulate trace metals. Analytical Chemistry, 51(7): 844-851.
Zalidis G., Barbayiarinis N., and Matsi T. 1999. Forms and distribution of heavy metals in soils of the Axios Delta of Northern Greece. Communications in Soil Science and Plant Analysis, 30(5-6): 817-827.
Zemberyova M., Bartekova J., Bajcan D., and Vysinska D. 2004. Utilization of modified BCR three-step sequential extraction procedure for iron fractionation in soil reference materials. In: Proceedings book 277, Adnan Menderes University, 4th AACD Congress, 29 Sept-3 Oct. Kusadasi- Aydin, Turkey, Pp. 536-538.
Zhu B., and Alva A. K. 1993. Distribution of trace metals in some sandy soils under citrus production. Soil Science Society of America Journal, 57(2): 350-355.