Hostname: page-component-848d4c4894-v5vhk Total loading time: 0 Render date: 2024-06-22T19:29:18.514Z Has data issue: false hasContentIssue false
  • English
  • Français

Downward movement and transformation of phosphorus in soils after long-continued fertilizer application to coconut (Cocos nucifera)

Published online by Cambridge University Press:  27 March 2009

P. Loganathan  and
V. Nalliah
P. Loganathan
Affiliation:
Coconut Research Institute, Lunuwila, Sri Lanka
V. Nalliah
Affiliation:
Coconut Research Institute, Lunuwila, Sri Lanka
Get access Rights & Permissions [Opens in a new window]

Summary

Determinations of sodium bicarbonate (pH 8·5) extractable P made on profiles of a sandy loam soil 7 and 8 years after fertilizer application to coconut in the Dry zone of Sri Lanka showed that the downward movement of P from concentrated superphosphate was greater than from rock phosphate (saphos). The surface layers (0–15 cm) of soil given concentrated superphosphate had higher P values (60 and 89 mg/kg for the 8th and 9th year respectively) than those given rock phosphate (3 and 16·5 mg/kg). At 40 cm depth the concentrated superphosphate treatment had 6 and 30 mg P/kg but the rook phosphate treatment had almost zero P at and below 40 cm.

Phosphorus in the soil profile 8 years after fertilizer application was fractionated by the method of Chang & Jackson. Concentrated superphosphate treatment increased the Al-P and to a lesser degree Fe-P and Ca-P. Rock phosphate treatment increased the Ca-P and to a lesser extent Fe-P and Al-P. Phosphorus concentration in the 14th leaf was significantly correlated with Al-P, Fe-P and NaHCO3-P but not with Ca-P and organic P.

The significance of the findings to phosphorus fertilizer application to coconut is discussed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 89 , Issue 2 , October 1977 , pp. 279 - 284
Copyright
Copyright © Cambridge University Press 1977

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

Al-Abbas, A. H. & Barber, S. A. (1964). A Soil test for phosphorus based upon fractionation of soil phosphorus: 1. Correlation of soil phosphorus fractions with plant available phosphorus. Soil Science Society of America, Proceedings 28, 218–21.CrossRefGoogle Scholar
Alexander, T. G. & Robertson, J. A. (1970). Ascorbic acid as a reductant for inorganic phosphorus determination in Chang and Jackson fractionation procedure. Soil Science 110, 361–2.CrossRefGoogle Scholar
Balakrishnamurti, T. S. (1967). Report of the acting soil chemist. Ceylon Coconut Quarterly 18, 38–54.Google Scholar
Balakrishnamurti, T. S. (1969). Report of the acting soil chemist. Ceylon Coconut Quarterly 20, 45–66.Google Scholar
Brown, L. A. (1935). A study of phosphorus penetration and availability in soils. Soil Science 39, 277–87.CrossRefGoogle Scholar
Chang, S. C. & Jackson, M. L. (1957). Fractionation of soil phosphorus. Soil Science 84, 133–44.CrossRefGoogle Scholar
Fremond, Y., Ziller, R. & De Nuce De Lamothe, M. (1966). The CoconutPalm, p. 225. Berne: International Potash Institute.Google Scholar
Humphreys, F. R. & Pritchett, W. L. (1971). Phosphorus adsorption and movement in some sandy forest soils. Soil Science Society of America, Proceedings 35, 495–500.CrossRefGoogle Scholar
Jackson, M. L. (1962). Soil Chemical Analysis, p. 498. Englewood Cliffs, New York: Prentice-Hall, Inc.Google Scholar
Juo, A. S. R. & Ellis, B. G. (1968). Chemical and physical properties of Fe and Al phosphates and their relation to P availability. Soil Science Society of America, Proceedings 32, 216–21.CrossRefGoogle Scholar
Manning, P. B. & Salomon, M. (1965). Forms of phosphorus in soil after long-continued fertilization. Soil Science Society of America, Proceedings 29, 421–3.CrossRefGoogle Scholar
Nethsinghe, D. A. (1965). Report of the soil chemist. Ceylon Coconut Quarterly 16, 9–24.Google Scholar
Olsen, S. R., Cole, C. V., Watanabe, F. S. & Dean, L. A. (1954). Estimation of available phosphorus in soils by extraction with sodium bicarbonate. United States Department of Agriculture Circular 939.Google Scholar
Pratt, P. F., Jones, W. W. & Chapman, H. D. (1956). Changes in phosphorus in an irrigated soil during 28 years of differential fertilization. Soil Science 82, 295–306.CrossRefGoogle Scholar
Saunders, W. M. H. & Williams, E. G. (1955). Observations on the determination of total organic phosphorus in soils. Journal of Soil Science 6, 254–67.CrossRefGoogle Scholar
Stanberry, C. O., Converse, C. D., Haise, H. R. & Kelley, O. J. (1955). Effect of moisture and phosphate variables on alfalfa hay production on the Yuma Mesa. Soil Science Society of America, Proceedings 19, 303–10.CrossRefGoogle Scholar