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Studies on the Northern Rhodesia Hyparrhenia Veld:IV. The effects of nitrigen fertilizer and defoliation

Published online by Cambridge University Press:  27 March 2009

C. A. Smith
C. A. Smith
Affiliation:
Mount Makulu Research Station, Chilanga, Northern Rhodesia
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Extract

Plot trials measured the effect of fertilizers and defoliation on Hyparrhenia veld.

N was the only nutrient limiting growth, and N fertilizer markedly increased the herbage yield and crude protein %. The herbage response was linear up to the highest rate used, 189 lb. N/acre, with a calculated N recovery of approximately 35%. Split fertilizer applications were only advantageous in one year out of three. The effect of N fertilizer steadily decreased at successive harvests after application, and the residual effect in a following season was transient. N fertilizers did not alter the botanical composition of the veld.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 62 , Issue 3 , June 1964 , pp. 299 - 306
Copyright
Copyright © Cambridge University Press 1964

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References

REFERENCES

Association of Official Agricultural Chemists (1950). Official and Tentative Methods, 7th ed.Washington, D.C..Google Scholar
Barnes, D. L. (1960). Rhod. Agric. J. 57, 311.Google Scholar
Barnes, D. L. (1961). Rhod. Agric. J. 58, 365.Google Scholar
Bates, G. C. (1962). Rhod. Agric. J. 59, 14.Google Scholar
Brockington, N. R. (1960). J. Brit. Orassl. Soc. 15, 323.CrossRefGoogle Scholar
Brockington, N. R. (1961). J. Brit. Orassl. Soc. 16, 54.Google Scholar
Castle, M. E. & Reid, D. (1963). J. Brit. Orassl. Soc. 18, 1.Google Scholar
C.C.T.A./C.S.A. (1961). Soils Map of Africa. Report of Expert Meeting in. Paris.Google Scholar
Donald, C. M. & Black, J. N. (1958). Herb. Abstr. 28, 1.Google Scholar
Glover, J., Duthie, D. W. & Dotxgall, H. W. (1960). E. Afr. Agric. For. J. 26, 117.CrossRefGoogle Scholar
Hall, T. D., Meredith, D. & Aitona, K. E. (1955). In The Grasses and Pastures of S. Africa, p. 637. Johannesburg: Central News Agency.Google Scholar
Henzell, E. F. (1962). In A Review of N in the Tropics, p. 161. Bull. Commonw. Bureau Pastures Field Crops, no. 46. C.A.B. Farnham Royal.Google Scholar
Jantii, A. & Kramer, P. J. (1956). Proc. 1th Int. Grassl. Congr. no. 33.Google Scholar
Martin, A. E. & Skyring, G. W. (1962). In A Beview of N in the Tropics, p. 19. Bull. Commonw. Bureau Pastures Field Crops, no. 46. C.A.B. Farnham Royal.Google Scholar
May, L. W. (1960). Herb. Abstrs. 30, 239.Google Scholar
Mitchell, K. J. & Gloss, R. L. (1958). Nature, Lond., 181, 1619.CrossRefGoogle Scholar
Rattray, J. M. & Wild, H. (1961). Kirkia, 2, 94.Google Scholar
Smith, C. A. (1961a). J. Agric. Sci. 57, 305.Google Scholar
Smith, C. A. (1961b). J. Agric. Sci. 57, 311.CrossRefGoogle Scholar
Smith, C. A. (1963). Nature, 200, 811.CrossRefGoogle Scholar
Stent, H. B. (1933). 3rd Ann. Bull. Dep. Agric. N. Rhod. p. 14.Google Scholar
Trapnell, C. G., Martin, J. D. & Allen, W. (1950). Vegetation-Soil Map of N. Rhodesia. Lusaka: Government Printer.Google Scholar
Walker, T. W., Obohiston, H. D. & Adams, A. F. R. (1954). J. Brit. Orassl. Soc. 9, 35.Google Scholar