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Use of Tine-tillage, with Atrazine Weed Control, to Permit Earlier Planting of Maize by Smallholder Farmers in Zimbabwe

Published online by Cambridge University Press:  03 October 2008

E. M. Shumba ,
S. R. Waddington  and
M Rukuni
E. M. Shumba
Affiliation:
Department of Research and Specialist Services, Ministry of Lands, Agriculture and Rural Resettlement, PO Box 8000, Causeway Mount Pleasant, Harare, Zimbabwe
S. R. Waddington
Affiliation:
CIMMYT, PO Box MP 154, Mount Pleasant Mount Pleasant, Harare, Zimbabwe
M Rukuni
Affiliation:
Faculty of Agriculture, University of Zimbabwe, PO Box MP 167, Mount Pleasant, Harare, Zimbabwe
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Summary

Because of shortages of oxen for mouldboard ploughing, delayed planting of maize is common in Mangwende, Zimbabwe and reduces grain yield by 32%. On-farm experiments over four years tested the possibility of using a ripper tine, with atrazine herbicide, to allow smallholders to plant maize earlier. Compared to mouldboard ploughing, tine cultivation increased grain yield at 13 out of 18 sites. All these sites had less than 240 mm of rainfall in January (which coincided with crop anthesis) and long term rainfall records suggest tine cultivation should raise yields in two out of three years. Handweeding and atrazine treatments gave similar grain yields when used with tine cultivation, provided weeds were controlled within 14 days of crop emergence. Tine cultivation was economic at sites where the yield was greater than that with the mouldboard plough. The farmers could manage the combination of tine and atrazine use on a field scale.

Type
Research Article
Information
Experimental Agriculture , Volume 28 , Issue 4 , October 1992 , pp. 443 - 452
Copyright
Copyright © Cambridge University Press 1992

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References

REFERENCES

CIMMYT (1988). From Agronomic Data to Farmer Recommendations: An Economics Training Manual. Revised edition. Mexico, DF: CIMMYT.Google Scholar
Collinson, M. P. (1987). Farming systems research: Procedures for technology development. Experimental Agriculture 23:365–386.CrossRefGoogle Scholar
Jones, M. E. (1973). Tillage Techniques, Mimeo, 1–7. Salisbury: Department of Conservation and Extension, Ministry of Agriculture.Google Scholar
Lungu, N. F. (1971). An Investigation into the Cause of Decreased Yields in Late Planted Maize. PhD thesis, University of Malawi, Bunda College, Lilongwe.Google Scholar
MacColl, D. (1990). Studies on maize (Zea mays) at Bunda, Malawi. IV. Further investigations into the effects of planting date. Experimental Agriculture 26:273–278.CrossRefGoogle Scholar
Linn, D. M. & Doran, J. W. (1984). Aerobic and anaerobic microbial populations in no-till and ploughed soil. Soil Science Society of America journal 48:794–799.CrossRefGoogle Scholar
Matlon, P. J. (1984). Technology evaluation. In Coming Full Cycle: Farmers' Participation in the Development of Technology: 95–118 (Eds Matlon, P. J. et al. ). Ottawa: IDRC.Google Scholar
Shumba, E. M. (1984). Reduced tillage in the Communal Areas. Zimbabwe Agricultural journal 81:235–239.Google Scholar
Shumba, E. M. (1988). Maize technology research in Mangwende, a high potential communal arca environment in Zimbabwe, Part 1: Developing a research agenda. Farming Systems Newsletter 34:12–34.Google Scholar
Shumba, E. M. (1989). An Agronomic Study of Appropriate Maize (Zea mays) Tillage and Weed Control Technologies in a Communal Area of Zimbabwe. DPhil thesis, Faculty of Agriculture, University of Zimbabwe.Google Scholar
Spear, A. J. (1968). Tillage problems of peasant agriculture in Rhodesia. In Supplement to Modern Farming, June 1968, 57–59. Salisbury.Google Scholar
Weinmann, H. (1975). Agricultural Research and Development in Southern Rhodesia 1924–1950. Series in Science No. 2. Salisbury: University of Rhodesia.Google Scholar
Willcocks, T.J. (1981). Tillage of clod-forming sandy loam soils in the semi-arid climate of Botswana. Soil and Tillage Research 1:323–350.CrossRefGoogle Scholar