Abbaspour A., Kalbasi M. and Shariatmadari H. 2004. Effect of steel converter sludge as iron fertilizer and amendment in some calcareous soil, Journal of Plant Nutrition, 27(2): 377-394.
2- Adhikari M. and Si S.K. 1991. Studies on different forms of iron and aluminum and their release in relation to acidity of some acid soils, Journal of Indian Societyand Soil Science, 39: 252- 255.
3- Alison L.E. and Moodie C.D. 1965. Method of soil analysis. Part II, Monograph No. 9. American Society of Agronomy. Madison, WI.
4- Bouyoucos C.J. 1962. Hydrometer method improved for making particle – size analysis of soils, Agronomy Journal, 54:464-465.
5- Bray R.H. 1945. Soil-plant relationships: II. Blanced fertilizer use through soil tests for K and P. Soil Science, 60:463-473.
6- Brown A.L., Quick J. and Eddings J.L. 1971. A comparison of analytical methods for soil zinc, Soil Science Society of American, 35: 105- 107.
7- Cakmack I. and Braun H.J. 2001. Genotypic variation for Zinc efficiency. In: Reynolds MP, Ortiz- Monaterio JI, McNabA(ed.) Application of physiology in Wheat breeding. Mexico, pp.175-188.
8- Chackerolhoseini M.R. 2001. Effect of P and Fe on yield and concentration of corn and soybean. Master's thesis, Department of Soil Science, College of Agriculture, Shiraz University. (in Persian with English abstract)
9- Chaney R.L., Hamze M.H. and Bell P.F. 1992. Screening chickpea for iron chlorosisresistantance using bicarbonate in nutrient solution to simulate calcareous soils, Journal of Plant Nutrition, 15: 2045- 2062.
10- Chapman H.D. 1965. Cation exchange capactiy.P.811– 903. In: C.A. Black. et al(ed). Methods of soil analysis. Part II. Monograph No.9, American Society of Agronomy. Madison, WI.
11- Chen L, Warren Streeter A.W.J.G. and Horitionk H.A.J.1998. Fe chelates form compost microorganism improve Fe nutrition of soybean and oat, Plant and Soil, 200: 139- 147.
12- Chen Y., Shi J., Tin G., Zheng S. and Lin Q. 2004. Fe deficiency induces Cu uptake and accumulation in commeliacommunis, Plant Science, 166:1371-1377.
13- Dolui A.K. and Mustafi S.C., 1997. Forms of extractable iron in relation to soil characteristics of some alfisols. Journal of IndianSocietyand Soil Science, 45, 192- 194.
14 -Emame A. 1998. Methods of plant chemical analysis, Soil & Water Research Institute,Karaj.(in Persian)
15- Ghasemiphasaee R. 2002. Response of soybean genotypes to iron. Master's thesis, Department of Soil Science, College of Agriculture, Shiraz University. (in Persian with English abstract)
16- Han F.X. and Banin A. 1995. Selective sequential dissolution techniques for trace metals in arid-zone soils: The carbonatedissolutionstep,Communication and Soil Science and Plant Analysis, 26, 553-576.
17- Koleli N., Eker S. and Cakmak I. 2004. Effect of zinc fertilization on cadmium toxicity in durum and bread wheat grown in zinc- deficient soil, Environmental Pollution, 131:453-459.
18- Kumar Das D. 1997. Intreductory soil science. KalyanPublishers,India.
19- Lindsay W.L., and Norvell W.A. 1978. Develepment of a DTPA soil test for zinc, iron, manganese, and copper. Soil Sci Society of American Journal, 42: 421- 428.
20- Lucena J.J. 2000. Effects of bicarbonate, nitrate and other environmental factors on iron chlorosis,Areview, Journal of Plant Nutrition, 23:1591-1606.
21- Mahmoudi H., Ksouri R., Gharsalli M. and Lachaal M. 2005. Differences in responses to iron deficiency between two legums: Lentil (Lens culinaris) and chickpea(Cicerarietinum), Journal of Plant Physiology, 162(11):1237-1245.
22- Malakouti M.J., Karimian N.A. and Keshavarz P. 2006. Diagnosis and recommendation integrated system for balanced fertilization, Tarbiatmodarres university press.
23-Martens D.G., and Westerman D.T. 1991.Fertilizer application for correcting micronutrient deficiency.PP.549-592.In:Mortvedt, J.J., F.R. Cox, L.M. Shuman and R.M. Welch (Eds.), Micronutrients in Agriculture, SSSA,Madison, WI
24- Naganuma K., Okazaki M., Yonebayshi K. and AbuBaker Z. 1993. Surface charge and adsorption characteristics of copper and zinc on tropical soils, Soil Science and Plant Nutrition, 39: 455-462.
25- Neaman A., Reyes L., Trolard F., Bourrie G. andSauve S. 2009. Copper mobility in contaminated soils of the puchancavi valley, central Chile. Geoderma, 150: 359- 366.
26-Nodehsharify GH .R.,Dordipour E., BaraniMotlagh M. and Olamaee M. 2016. Distribution of soil iron chemical forms in some Golestanprovince soils, Applied Soil Research, 4(1):28-38.
27- Randhava H.S. and Singh S.P. 1997. Iron fractions in allivium- derived soils of Punjab, Journal of Indian Society and Soil Science, 45:825- 827.
28- Reyhanitabar A., Karimian N.A., Ardalan M., Savaghebi G.H.R. and Ghanadha M.R. 2006. Zinc Fractions of Selected Calcareous Soils of Tehran Province and Their Relationships with Soil Characteristics, Journal of Science and Technology of Agriculture and Natural Resources, 3: 125-136.
29- Roomizadeh S. and Karimian N. 1996. Manganese-iron relationship in soybean grown in calcareous soils, Journal of Plant Nutrition, 19: 379-406.
30-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.
31- Shuman L.M. 1985. Frsctionation method for soil microelements, Journal of Soil Science, 140 (1): 11-22.
32- Singh J.P., Karwasra S.P.S. and Singh M. 1988. Distribution and forms of copper, iron, manganese, and zinc in calcareous soils of India, Soil Science, 146: 359-366.
33- Yerriswamy R.M., Vasuki N., Manjunathaiah H.M. and Satyanarayana T. 1995. Forms of iron and their distribution in some Vertisols of Karnataka, Journal of Indian Society and Soil Science, 43, 371- 374.
34- Yelvikar N.V., Seddiqui S.I.M., Malewar G.U. and Tajuddin G. 1996. Distribution of different forms of iron in Vertic soils and their relation with soil properties, Journal of Indian Society of Soil Science, 44: 781- 783.
35- Yousfi S., Wissal M., Mahmoudi H., Abdelly C. and Gharsalli M. 2007. Effect of salt on physiological responses of barley to iron deficiency, Plant Physiology Biochemistry, 45: 309-314.
36- Yousfi S., Rabhi M., Abdelly C. and Gharsalli M. 2009. Iron deficiency tolerance traits in wild(Hordeummaritimum) and cultivated barley (Hordeumvulgare),ComptesRendusBiologies, 332(6): 523-533.
37- Walkley A. and Black T.A. 1934. An examination of the Deligaref method for determining organic matter and a proposed modification of chromic acid titration method, Soil Science, 37:29-38.
38- Zhang M., Alva A.K., Li Y.C. and Calvert D.V. 1997. Fractionation of iron, aluminum, and phosphorous in selected sandy soils under citrus production. Soil Science Society and American Journal, 61:797-801.