Potassium Exchange Isotherms as a Plant Availability Index in Selected Calcareous Soils of Western Azarbaijan Province, Iran

Potassium (K) exchange isotherms (quantity-intensity technique, Q/I) and K values derived from the Q-I relationship provide information about soil K availability. This investigation was conducted to study the relationships among K Q/I parameters, available K extracted by 1 N NH4AOc (exchangeable K plus solution K), potassium saturation percentage (K-index, %), and the properties of 6 different calcareous agricultural soils. In addition, the relationship of tomato plant yield response to the K requirement test based on K exchange isotherms was investigated. The Q/I parameters included readily exchangeable K (DK0), specific K sites (KX), linear potential buffering capacity (PBCK), and energy of exchange of K (EK). The results of X-ray diffraction analysis of the oriented clay fractions indicated that some mixed clay mineral, some chlorite/illite clay minerals, along with palygorskite and kaolinite were present in the soils. The soil solution K activity ratio at equilibrium (AR0) ranged from 0.0014 to 0.028 (moles l-1)0.5. The readily exchangeable K (DK0) was between 0.044 and 2.5 (cmolc kg-1 soil), which represented an average of 51% of the exchangeable K (Kex). There was a significantly positive relationship between DK0 and NH4AOc-extractable K (r = 98, P < 0.001). The soils showed high capacities to maintain the potential of K against depletion, as they represented very high linear potential buffering capacities (PBCK) [44-177 cmol kg-1/(mol l-1)0.5. The EK values for the check treatments ranged from -2736 to -4117 calories M-1, and, for the treatments in which 120 mg K l-1 was added, varied between -2193 and -2657 calories M-1. The percentage of K saturation (K-index, %) ranged from 3.8% to 10.2%. Analysis of variance of the dry matter (DM), K concentrations, and K uptake of tomato plants indicated that there were no significant differences (P < 0.05) among the adjusted levels of K as determined by the exchange-isotherm curve.

Potassium Exchange Isotherms as a Plant Availability Index in Selected Calcareous Soils of Western Azarbaijan Province, Iran

Potassium (K) exchange isotherms (quantity-intensity technique, Q/I) and K values derived from the Q-I relationship provide information about soil K availability. This investigation was conducted to study the relationships among K Q/I parameters, available K extracted by 1 N NH4AOc (exchangeable K plus solution K), potassium saturation percentage (K-index, %), and the properties of 6 different calcareous agricultural soils. In addition, the relationship of tomato plant yield response to the K requirement test based on K exchange isotherms was investigated. The Q/I parameters included readily exchangeable K (DK0), specific K sites (KX), linear potential buffering capacity (PBCK), and energy of exchange of K (EK). The results of X-ray diffraction analysis of the oriented clay fractions indicated that some mixed clay mineral, some chlorite/illite clay minerals, along with palygorskite and kaolinite were present in the soils. The soil solution K activity ratio at equilibrium (AR0) ranged from 0.0014 to 0.028 (moles l-1)0.5. The readily exchangeable K (DK0) was between 0.044 and 2.5 (cmolc kg-1 soil), which represented an average of 51% of the exchangeable K (Kex). There was a significantly positive relationship between DK0 and NH4AOc-extractable K (r = 98, P < 0.001). The soils showed high capacities to maintain the potential of K against depletion, as they represented very high linear potential buffering capacities (PBCK) [44-177 cmol kg-1/(mol l-1)0.5. The EK values for the check treatments ranged from -2736 to -4117 calories M-1, and, for the treatments in which 120 mg K l-1 was added, varied between -2193 and -2657 calories M-1. The percentage of K saturation (K-index, %) ranged from 3.8% to 10.2%. Analysis of variance of the dry matter (DM), K concentrations, and K uptake of tomato plants indicated that there were no significant differences (P < 0.05) among the adjusted levels of K as determined by the exchange-isotherm curve.

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  • Akinrinde, E.A. 1999. Quantity-intensity parameters of potassium in relation to uptake by Guinea corn in representative soils of the ecological zones of Nigeria. Commu. Soil Sci. Plant Anal. 30: 2695-2710.
  • Al-Kanani, T., A.J., Hussien and N.N., Barthakut. 1989. Potassium exchange equilibria in calcareous soils. Soil Sci. 148: 286-292.
  • Alafifi, M.A. 1996. Potassium potential and potential buffering capacity of Torripsamments in the United Arab Emirates. Commun. Soil Sci. Plant Anal. 27: 27-36.
  • Beckett, P.H.T. 1964. Studies on soil potassium: II. The immediate Q/I relations of labile potassium in the soil. J. Soil. Sci. 15: 9-23.
  • Bertsch, P.M. and G.W. Thomas. 1985. Potassium Status of Temperate Region Soils. In Potassium in Agriculture; Munson, R.D. Ed.; American Society of Agronomy: Madison. WI, 131-162.
  • Bouyoucos, G.J. 1951. Recalibration of hydrometer method of making mechanical analysis of soil. Agron. J. 43: 434-435.
  • Davis, C.W. 1962. Ion Association. Butterworths, London, England.
  • Evangelouand, V.P. and A.D. Karathanasis. 1986. Evaluation of potassium quantity-intensity relationships by a computer model employing the Gapon equation. Soil Sci. Soc. Am. J. 50: 58-62.
  • Gawander, J.S., P., Gangaiya and R.J., Morrison. 2002. Potassium studies on some sugarcane growing soils in Fiji. S. Pac. J. Nat. Sci. 20: 15-21
  • Hosseinpour A.R. and M. Kalbasi. 2000. Potassium quantity-intensity ratio and the correlation of its parameters with soil properties in some Iranian soils. Journal of Science and Technology of Agricultural and Natural Resources. 4: 43-55.
  • Jimenez, C. and M.A. Parra. 1991. Potassium quantity-intensity relationships in calcareous Vertisols and Inceptisols of southern Spain. Soil Sci. Soc. Am. J. 55: 985-989.
  • Kunze, G.W. 1965. Pretreatment for mineralogical analysis. (Ed. C. A. Black) Methods of soil Analysis. Agronomy. American Society of Agronomy, Madison, Wisconsin. USA. Pp. 210-221.
  • Lee, R. 1973. The K/Ca Q/I relation and preferential adsorption sites for potassium. New Zealand Soil Bureau Scientific Report II.
  • LeRoux, J. 1966. Studies on ionic equilibria in Natal soils. Ph.D. diss. Univ. Of Natal., Republic of South Africa.
  • LeRoux, J. and M. E. Sumner. 1968. Labile potassium in soils: I. Factors affecting the quantity-intensity (Q/I) parameters. Soil Sci. 106:35-41.
  • Malakouti, M.J. and M.N. Gheibi. 2000. Determination of nutrients critical levels in soil, plant and fruit. Agricultural training publication, TAT organization, Agricultural Ministry, Karj, Iran.
  • Mehra, O.P. and M.L. Jackson. 1960. Iron oxide removal from soils and clays by a dithionite–citrate system buffered with sodium bicarbonate. Clays Clay Miner. 7, 317–327.
  • Meyer, J.H. and R.A. Wood. 1985. Potassium nutrition of sugarcane in South African sugar industry. In: Proc. of the Potassium Symposium, Pretoria 1985. p 205-213.
  • Mutscher H. 1995. Measurement and assessment of soil potassium. IPI Research Topics No. 4 (revised version), International Potash Institute Basel, Switzerland, 102 pp.
  • Potash and Phosphate Institute. 1980. Potassium for Agriculture - A Situation Analysis. Potash and Phosphate Institute, Atlanta. 216 p.
  • Rasnake, M. and W. Thomas. 1976. Potassium status of some alluvial soils in Kentucky. Soil Sci. Soc. Am. Proc. 40: 883-887.
  • Rayment, G.E. and F.R. Higginson. 1992. Oxalate-extractable Fe and Al. In “ Australian Laboratory Handbook of Soil and Water Chemical Methods”. Inkata Press, Melbourne.
  • Rich, C.I. 1964. Effect of cation size and pH on potassium exchange in Nason soil. Soil Sci. 98: 100-106.
  • Richards, J. and T.E. Bates. 1988. Studies on the potassium supplying capacities of southern Ontario soils. II. Nitric acid extraction of non-exchangeable K and its availability to crops. Can. J. Soil Sci. 69: 199-208.
  • Samadi, A. 2003. Predicting phosphate fertilizer requirement using sorption isotherms in selected calcareous soils of Western Azarbaijan Province, Iran. Commun. Soil Sci. Plant Anal. 34: 2885-2899.
  • Singh, B.B. and J.P. Jones. 1975. Use of sorption-isotherms for evaluating potassium requirement of plants. Soil Sci. Soc. Am. Proc. 39: 881-896.
  • Soil Survey 1999. Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys. USDA-NRCS, Agriculture Handbook No. 436. U.S. Government Printing Office. p. 870.
  • Sparks, D.L. and W.C. Liebhardt. 1981. Effect of long-term lime and potassium application on quantity-intensity relationships in sandy soil. Soil Sci. Soc. Am. J. 45: 786-790.
  • Thomas, G.W. 1982. Exchangeable cations. In: A.L. Page et al. (ed.) Methods of Soil Analysis: Part 2. Chemical and microbiological properties. ASA Monograph. 9: 159-165.
  • Walkely, A. 1947. A critical examination of a rapid method for determining soil organic carbon in soils. Effect of variations in digestion conditions and inorganic soil constituents. Soil Sci. 63: 251-263.
  • Wang, J.J. and A.D. Scott. 2001. Effect of experimental relevance on potassium Q/I relationships and its implications for surface and subsurface soils. Commu. Soil. Sci. Plant Anal. 32: 2561-2575.
  • Woodruff, C.M. 1955. The energies of replacement of calcium by potassium in soils. Soil Sci. Soc. Am. Proc. 19: 36-40.
Turkish Journal of Agriculture and Forestry-Cover
  • ISSN: 1300-011X
  • Yayın Aralığı: Yılda 6 Sayı
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