Hostname: page-component-7b7567c8c-fvjsw Total loading time: 0 Render date: 2026-11-12T19:58:19.756Z Has data issue: false hasContentIssue false
  • English
  • Français

Changes in Yields and Fertilizer Responses with Continuous Cropping in Uganda

Published online by Cambridge University Press:  03 October 2008

D. Stephens
D. Stephens
Affiliation:
Department of Agricultural Chemistry, Makerere University College, Kampala, Uganda
Get accessRights & Permissions [Opens in a new window]

Summary

In sixteen factorial field trials with N, P, K, Mg, trace element and farmyard manure treatments, yields declined during the first four years of cropping following a resting period under grass, responses to K and farmyard manure increased, and other treatments showed no significant changes. After a few years of continuous cropping potassium deficiency may seriously limit yields, especially of sweet potatoes. N, P and K fertilizers maintained yields as well as the farmyard manure treatment.

Information

Type
Research Article
Information
Experimental Agriculture , Volume 5 , Issue 4 , October 1969, pp. 263 - 269
Copyright
Copyright © Cambridge University Press 1969

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.)

Article purchase

Temporarily unavailable

References

REFERENCES

D'Hoore, J. L. (1961). Soil Map of Africa, Scientific Council for Africa South of the Sahara.Google Scholar
Harrop, J. F. (1960). The Soils of the Western Province of Uganda, Uganda Dept. Agric. Res. Memoir Series 1, 6.Google Scholar
Langdale-Brown, I. (1960). The Vegetation of Uganda, Uganda Dept. Agric. Res. Memoir Series 2, 6.Google Scholar
Manning, H. L. & Gripfitn, G. ap (1949). E. afr. agric. J. 15, 87.Google Scholar
Mills, W. R. (1953). E. afr. agric. J. 19, 53.Google Scholar
Mills, W. R. (1954). Proc. Second Inter-African Soils Conf. 3, 785 and 1133.Google Scholar
Ollier, C. D. (1959). The Soils of the Northern Province of Uganda, Uganda Dept. Agric. Res. Memoir Series 1, 3.Google Scholar
Radwanski, S. A. (1960). The Soils and Land Use of Buganda, Uganda Dept. Agric. Res. Memoir Series 1, 4.Google Scholar
Radwanski, S. A. & Ollier, C. D. (1959). J. Soil Sci. 10, 149.CrossRefGoogle Scholar