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Kinetics of Zinc Transformation in Submerged Alkaline Soils in the Rice Growing Tracts of Punjab

Published online by Cambridge University Press:  27 March 2009

P. N. Takkar  and
B. S. Sidhu
P. N. Takkar
Affiliation:
Department of Soils, Punjab Agricultural University, Ludhiana, India
B. S. Sidhu
Affiliation:
Department of Soils, Punjab Agricultural University, Ludhiana, India
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Summary

The effects of submerging sodic and alkaline soils on the kinetics of Zn2+ transformations were investigated. The soils were treated with 0-640 mg Zn/kg soil as ZnSO4. H2O and kept submerged under water in pots at 30–38 °C. The soil solution was analysed periodically up to 72 days for pH, electrical conductivity and Zn2+ ion. Soil pH decreased with increasing amounts of added Zn and with periods of submergence. The rate of decrease was rapid during the first 21 days of submergence but slow thereafter. Zinc concentration in the soil solution increased with the amounts added and decreased with the period of submergence; this decrease was more in the calcareous sodic soils than in other soils. The values of the expression pZn + 2pOH (Zn. hydroxide potential) showed that in submerged calcareous sodic soils, Zn concentration in the soil solution was regulated both by the Zn (OH)2—Zn2+(aq.) and ZnCO3 — Zn2+(aq.) systems up to 21 days (pZn + 2pOH = 16–17–5), and thereafter predominantly by ZnCO3–Zn2+(aq.) (pZn + 2pOH = 17–6–18–8) as a result of the buffering effect of soil carbonate equilibria. In slightly calcareous sodic and slightly calcareous alkaline soils, the soil solution Zn was controlled transitorily by the system: Zn(0H)2 — Zn2+(aq.) before 2–7 days (pZn + 2pOH = 16–0–17–5), ZnCO3–Zn2+(aq.) from 2–7 to 14–21 days (pZn + 2pOH = 17–5–18–8). Thereafter Zn–soil (unknown solid phases) – Zn=+(aq.) system controlled the Zn solubility (pZn+2pOH = 18–8–20–4).

Type
Research Article
Information
The Journal of Agricultural Science , Volume 93 , Issue 2 , October 1979 , pp. 441 - 447
Copyright
Copyright © Cambridge University Press 1979

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References

Abrol, I. P., Dargan, K. S. & Bhumbla, D. R. (1973). Reclaiming Alkali Soils, ICAR Bulletin, no. 2. Karnal: Central Soil Salinity Research Institute.Google Scholar
Bingham, F. T., Page, A. L. & Sims, J. R. (1964). Retention of Cu and Zn by H-Montmorillonite. Proceedings of Soil Science Society of America 28, 351–354.Google Scholar
Chang, S. C. (1965). In The Minerals Nutrition of Rice Plant, pp. 373–381. Baltimore, Maryland: Johns Hopkins Press.Google Scholar
Chapman, H. D. (1965). Cation-exchange capacity. In Methods of Soil Analysis (ed. Black, C. A.). Chemical and Microbiological Properties. Agronomy. No. 9, Part 2, pp. 771–1572. Madison, Wisconsin: American Society of Agronomy, Inc.Google Scholar
Dhillon, S. K., Sinha, M. K. & Randhawa, N. S. (1975). Chemical equilibria and Q/I relationship of zinc in selected alkali soils of Punjab. Journal Indian Society of Soil Science 23, 38–46.Google Scholar
International Rice Research Institute (1970). Annual Report. Los Banes, Philippines: International Rice Research Institute.Google Scholar
Lindsay, W. L. (1972). Inorganic phase equilibria of micronutrient in soils. In Micronutrients in Agriculture (ed. Mortvedt, J. J., Giordano, P. M. & Lindsay, W. L.), pp. 41–57. Madison, Wisconsin: Soil Science Society of America.Google Scholar
Margolis, E. J. (1966). Chemical Principles in Calculation of Ionic Equilibria. New York: MacMillan.Google Scholar
Misra, S. G. & Ttwari, R. C. (1966). Retention and release of copper and zinc by some Indian soils. Soil Science 101, 465–471.Google Scholar
Norvell, W. A. & Lindsay, W. L. (1969). Reaction of EDTA complexes of Fe, Zn, Mn and Cu with soils. Proceedings of Soil Science Society of America 33, 86–91.Google Scholar
Pasricha, N. S. & Ponnamperuma, F. N. (1976). Influence of salt and alkali on ionic equilibria in submerged soils. Soil Science Society of America Journal 40, 374–376.CrossRefGoogle Scholar
Ponnamperuma, F. N., Tianco, E. M. & Loy, T. A. (1966). Ionic strengths of the solutions of flooded and other natural aqueous solutions from specific conductance. Soil Science 102, 408–413.Google Scholar
Ponnamperuma, F. N. (1972). The chemistry of submerged soils. Advances in Agronomy 24, 29–94.Google Scholar
Ponnamperuma, F. N. (1977). Behaviour of minor elements in paddy soils. IRRI Research Paper Series no. 8, pp. 1–15.Google Scholar
Randhawa, N. S., Sinha, M. K. & Takkar, P. N. (1977). Micronutrients. I. The International symposium on Soil and Rice; Laguna, Philippines: International Rice Research Institute. (In the Press.)Google Scholar
Takkar, P. N. (1969). Effect of organic matter on soil iron and manganese. Soil Science 108, 108–112.Google Scholar
Takkar, P. N. & Singh, T. (1978). Zinc nutrition of rice as influenced by rates of gypsum and zinc fertilization of alkali soils. Agronomy Journal 70, 447–450.Google Scholar
Takkar, P. N. & Randhawa, N. S. (1978). Micronutrients in Indian agriculture. Fertilizer News 23, 1–26.Google Scholar
Udo, E. J., Bohn, H. L. & Tucker, T. C. (1970). Zinc adsorption by calcareous soils. Proceedings of Soil Science Society of America 34, 405–407.Google Scholar