Hostname: page-component-745bb68f8f-b95js Total loading time: 0 Render date: 2025-01-24T17:27:54.636Z Has data issue: false hasContentIssue false
  • English
  • Français

Movement of potassium in an Ustochrept soil profile in a long-term fertilizer experiment

Published online by Cambridge University Press:  27 March 2009

A. N. Ganeshamurthy  and
C. R. Biswas
A. N. Ganeshamurthy
Affiliation:
Department of Soils, Punjab Agricultural University, Ludhiana 141 004, India
C. R. Biswas
Affiliation:
Department of Soils, Punjab Agricultural University, Ludhiana 141 004, India
Get access Rights & Permissions [Opens in a new window]

Summary

Downward movement of potassium (K) was studied in the soil profiles of a longterm fertilizer experiment. The distribution of different forms of K and the percentage K saturation of the CEC of soil, at various depths of the differentially treated plots, indicated that applied K moved down to 75 cm depth in the high-K plots after nine cycles of a maize-wheat-cow peas crop rotation. However, movement of K was not noticed in plots not given K fertilizers. Plant uptake of K far exceeded the amounts of applied K. Application of K fertilizer reduced the release of K from the non-exchangeable reserves. Forms of K and the percentage K saturation of the CEC of soils were significantly correlated.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 102 , Issue 2 , April 1984 , pp. 393 - 397
Copyright
Copyright © Cambridge University Press 1984

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Black, C. A. (1965). Methods of Soil Analysis, Part II. Madison, Wisconsin, U.S.A.: American Society of Agronomy.CrossRefGoogle Scholar
Ganeshamurthy, A. N. (1983). An estimate of the uptake of subsurface soil potassium by crops in two long-term experiments. Journal of Agricultural Science, Cambridge 101, 495–497.CrossRefGoogle Scholar
Ghosh, A. B. & Biswas, C. R. (1978). Potassium response and changes in soil potassium status with time. Proceedings of the Symposium on Potassium in Soils and Crops. Potash Research Institute, India, pp. 379–390.Google Scholar
Grimme, H. (1972). Sorption and mobility of K in soils. FAO Soils Bulletin 16, 141–151.Google Scholar
Hogg, D. E. & Cooper, M. (1964). Laboratory studies on losses of P, S and K from Te Kopuro sand. New Zealand Journal of Agricultural Research 7, 364–374.CrossRefGoogle Scholar
Kanwar, J. S. (1959). Two dominant clay minerals in Punjab soils. Journal of the Indian Society of Soil Science 7, 249–254.Google Scholar
Munson, R. D. & Nelson, W. L. (1963). Movement of applied potassium in soils. Journal of Agricultural and Food Chemistry 11, 193–204.CrossRefGoogle Scholar
Richards, L. R. (1954). Diagnosis and Improvement of Saline Alkali Soils (ed. Richards, L. R.) U.S.D.A. Handbook No. 60.CrossRefGoogle Scholar
Singh, B. & Sekhon, G. S. (1978). Leaching of potassium in illitic soil profiles as influenced by long-term application of inorganic fertilizers. Journal of Agricultural Science, Cambridge 91, 237–240.CrossRefGoogle Scholar