Ayers, R.S., & Westcot, D.W. (1994). Water quality for agriculture irrigation and drainage. FAO, Rome, Paper no.29.
Andrist Rengel, Y. (2008). Quantifying mineral sources of potassium in agricultural soils. Doctoral Diss., Dept. of Soil and Environment, SLU. Acta Unversitatis Agriculturae Sueciae, Uppsala, Sweden. Available at
http://epsilon.slu.se/eng/index.html.
Barre, P., Montagnier, C.H., Chenu, C., Abbadie, L., & Velde, B. (2008). Clay minerals as a soil potassium reservoir: observation and quantification through X-ray diffraction. Plant Soil, 302, 213-220.
Biscaye, P.E. (1965). Mineralogy and sedimentation of recent deep sea clay in the Atlantic Ocean and adjacent seas and oceans. Geological Society of America Bulletin,76, 803–832.
Borchardt, G. (1989). Smectite. In Dixon, J.B., and Weed S.B. (Eds.), Minerals in Soil Environments, 2nd edition (pp.675-727). American Society of America, Madison, Wisconsin, USA.
Bouyoucos, G.J. (1962) Hydrometer method improved for making particle size analysis of soils. Agronomy Journal, 54, 464-465.
Brady, N.C., & Weil, R.R. (1999). The nature and properties of soils. Prentice-Hall, Inc: Englewood Cliffs.
Chapman, H.D. (1965). Cation exchange capacity. In Black, C.A. (Ed.), Methods of Soil Analysis, Part 2 (pp. 891-900). American Society of Agronomy, Madison, Wisconsin, USA
Chorom, M., Baghernejad, M., & Jafari, S. (2009). Influence of rotation cropping and sugarcane production on the clay mineral assemblage. Applied Clay Science, 46, 385–395.
Fanning, D.S., Keramidas, V.Z., & ElDesoky, M.A. (1989). Mica. In Dixon, J.B., and Weed S.B. (Eds.), Minerals in soil environment (pp. 551-634). American Society of Agronomy, Madison, Wisconsin, USA. Hinsinger, P. (2002). Potassium. In Lal R. (Ed.), Encyclopedia of soil science (pp. 1035–1039). New-York: Marcel Dekker, Inc.
Huang, P.M. (2005). Chemistry of soil potassium. In Tabatabai, M.A., and Sparks, D.L. (Eds), Chemical Processes in Soil (pp. 221-292). American Society of Agronomy, Madison, Wisconsin, USA.
Jalali, M. (2005). Release kinetics of non-exchangeable potassium in calcareous soils. Communications in Soil Science and Plant Analysis, 36, 1903–1917.
Knudsen, D., Peterson, G.A., & Pratt, P.F. (1982). Lithium, sodium, and potassium. In Black, C.A. (Ed.), Methods of Soil Analysis, Part 2 (pp. 225-246). American Society of Agronomy, Madison, Wisconsin, USA.
Nelson, R.E. (1982). Carbonate and gypsum. In Page, A.L. (Ed.), Methods of Soil Analysis, Part 2 (pp. 181-199). American Society of Agronomy, Madison, Wisconsin, USA.
Nelson, D.W., & Sommers, L.E. (1982). Total carbon, organic carbon, and organic matter. In Page, A.L. (Ed.), Methods of Soil Analysis, Part 2 (pp.539-580). American Society of Agronomy, Madison, Wisconsin, USA.
Nilawonk, W., Attanandana, T., Phonphoem, A., Yost, R., & Shuai, X. (2008). Potassium release in representative maize-producing soils of Thailand. Soil Science Society of America Journal, 72, 791–797.
Olson, C.G., Thompson, M.L., & Wilson, M.A. (2000). Phyllosilicates. In Sumner, M.E. (ed), Handbook of Soil Science (pp. F-77–F-123). Boca Raton: CRC Press.
Proust, D., Eymery, J.P., & Beaufort, D. (1986). Supergene vermiculitization of a magnesian chlorite: iron and magnesium removal processes. Clays and Clay Minerals, 34, 572-580.
Rezapour, S., Jafarzadeh, A.A., Samadi, A., & Oustan, SH. (2009). Impacts of clay mineralogy and physiographic units on the distribution of potassium forms in calcareous soils in Iran. Clay Minerals, 44, 329-339.
Rezapour, S., & Samadi, A. (2012). Assessment of inceptisols soil quality following long-term cropping in a calcareous environment. Environmental Monitoring and Assessment,184, 1311-1323.
Rezapour, S., & Samadi, A. (2014) The spatial distribution of potassium status and clay mineralogy in relation to different land-use types in a calcareous Mediterranean environment.
Arabian Journal of Geosciences, 7, 1013- 1047.
Rezapour, S., Taghipour, A., & Samadi, A. (2013). Modification in selected soil attributes as influenced by long-term continuous cropping in a calcareous-semiarid environment. Natural Hazards, 69, 1951–1966.
Ross, G.J., & Kodama, H. (1976). Experimental alteration of a chlorite into an interstratified chlorite-vermiculite by chemical oxidation. Clay Minerals, 24, 183-190.
Samadi, A., Dovlati, A., & Barin, M. (2008). Effect of continuous cropping on potassium forms and potassium adsorption characteristics in calcareous soils of Iran. Australian Journal of Soil Research, 46, 265-272.
Sharma, B.D., Mukhopadhyay, S.S., & Sawhney, J.S. (2006). Distribution of potassium fractions in relation to landforms in a Himalayan catena. Archives of Agronomy and Soil Science, 52, 469–476.
Sharma, A., Jalali, V.K., & Arora, S. (2010). Non-exchangeable potassium release and its removal in foot-hill soils of North-west Himalayas. Catena, 82, 112–117.
Soil Survey Staff. (2010). Keys to soil taxonomy. U. S. Department of Agriculture, Natural Resources Conservation Service, Washington.
Sparks, D.L. (1987). Potassium Dynamics in Soils. Advance in Soil Science, 6, 1-63.
Srinivasarao, C., Khera, M.S., & SubbaRao, A. (1994). Soil potassium depletion and K replenishment capacity of soils under intensive cropping. Journal Potassium Research, 10, 229-235.
Srinivasarao, C.H., Vittal, K., Tiwari, K.N., Gajbhiye, P.N., & Kundu, S.U. (2007). Categorisation of soils based on potassium reserves and production system: implications in K management. Australian Journal of Soil Research, 45, 438-447.
Timpson, M.E., Lee, S.Y., Ammons, J.T., & Foss, J.E. (1996). Mineralogical investigation of soils formed in calcareous gravelly alluvial, eastern Crete, Greece. Soil Science Society of America Journal, 60, 299-308.
Thomas, G.W. (1982). Exchangeable Cations. In Page et al. (Eds.), Methods of Soil Analysis, Part 2 (pp.159-166). Soil Science Society of American, Madison, Wisconsin, USA.
Thompson, M., & Ukrainczyk, L. (2002). Micas. In Dixon, J.B., and Schulz, D.G. (Eds.), Soil mineralogy with environmental applications (pp. 431-461). American Society of Agronomy, Madison, Wisconsin, USA.
White, G.N., & Dixon, J.B. (2003). Soil Mineralogy Laboratory Manual. 9th edition. Texas: Department of Soil and Crop Sciences.
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