Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-22T05:54:11.010Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of Plant Population on Sole-crop Cassava in Sierra Leone

Published online by Cambridge University Press:  03 October 2008

W. Godfrey-Sam-Aggrey
W. Godfrey-Sam-Aggrey
Affiliation:
Department of Agronomy, Njala University College, University of Sierra Leone, Njala, Sierra Leone†
Get access Rights & Permissions [Opens in a new window]

Summary

Effects of plant population on mean yield and yield components of 2-year sole cassava crops were studied on Njala upland soils of Sierra Leone in two experiments. Increasing plant population of multi-shoot Cocoa cassava over 7000/ha decreased all the parameters studied except top/root weight ratio, which increased. The observed effects were attributed to competition for environmental resources, since area of land/plant unit decreased as plant population increased. The relations between plant populations and yields of fresh root and cortex dry matter were asymptotic, indicating that the respective yields were products of the vegetative phase of cropping.

Type
Research Article
Information
Experimental Agriculture , Volume 14 , Issue 3 , July 1978 , pp. 239 - 244
Copyright
Copyright © Cambridge University Press 1978

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

REFERENCES

Dept Agric., Zanzibar (1960). Suppl. Rep. Dept Agric., Zanzibar, 1959.Google Scholar
Doku, E. V. (1969). Cassava in Ghana. Accra: Ghana University Press.Google Scholar
Enyi, B. A. C. (1970). Beitr. Trop. Subtrop. Landwirtsch. u. Tropenvet. 8, 71.Google Scholar
Enyi, B. A. C. (1972). J. hort. Sci. 47, 457.CrossRefGoogle Scholar
Godfrey-Sam-Aggrey, W. & Bundu, H. S. (1972). Growing and Fertilizing Cassava. … Njala Univ. Coll. Circ. 6.Google Scholar
Gurnah, A. M. (1973). Effects of Plant Population and Fertilizers … on Cassava. … 3rd Int. Symp. Root Crops, Ibadan, Nigeria.Google Scholar
Holliday, R. (1960a). Nature, Lond. 186, 22.CrossRefGoogle Scholar
Holliday, R. (1960b). Field Crop Abstr. 13, 159.Google Scholar
Holliday, R. (1960c). Field Crop Abstr. 13, 147.Google Scholar
Odell, R. T., Dijkerman, J. C., Van Vuure, W., Melsted, S. W. et al. (1974). Characteristics, Classification and Adaptation of Soils in … Sierra Leone. Bull. 748. Agr. Exp. Sta., Coll. Agr., Univ. Ill., Urbana-Champaign: Bull. 4, Njala Univ. Coll., Univ. Sierra Leone.Google Scholar
Rodriquez, N. F., Sanchez de B, C. A., & Tarabanoff, J. L. (1966). Revta Invest. agropec. Set. 2, (3) 167.Google Scholar
Takyi, S. K. (1972). Ghana Jnl Agric. Sci. 5, 39.Google Scholar
Tardieu, M. & Fauche, J. (1961). Agron. Trop., Paris 16, 375.Google Scholar
Willey, R. W. & Heath, S. B. (1969). Advan. Agron. 21, 281.CrossRefGoogle Scholar