Shumba, E.M. and Waddington, S.R. and Rukuni, M. (1992) Use of Tine-Tillage, with Atrazine Weed Control, to Permit Earlier Planting of Maize by Smallholder Farmers in Zimbabwe. Experimental Agriculture, 28 (4). pp. 443-452.
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Abstract
On-farm trials in the Mangwende Communal Area, Zimbabwe, tested the possibility of using a ripper tine, with the pre-emergence herbicide atrazine, to allow earlier sowing of maize by smallholders. Compared with mouldboard ploughing, tine cultivation increased grain yield at 13 out of 18 sites. Yield increases, of up to 26%, occurred in fields where Jan. rainfall was <240 mm; i.e., when crop anthesis was in a relatively dry period. Long-term rainfall records showed that these conditions occur in about 2 out of every 3 years. Handweeding and atrazine treatments used with tine cultivation produced similar grain yields, provided that weeds were controlled within 14 d of crop emergence. It was concluded that tine cultivation and atrazine reduced the oxen requirement for maize cropping, thus decreasing late sowing and increasing productivity.
| Item Type: | Article |
|---|---|
| Additional Information: | We thank Malcolm Blackie and Roger Kirby for their advice in developing the research reported here and the Department of Research and Specialist Services for research facilities. |
| Author Affiliation: | Department of Research and Specialist Services, Ministry of Lands, Agriculture and Rural Resettlement, Causeway, Harare, Zimbabwe. |
| Subjects: | Plant Protection |
| Divisions: | Maize |
| Depositing User: | Mr Balakrishna Garadasu |
| Date Deposited: | 14 May 2013 05:31 |
| Last Modified: | 14 May 2013 05:31 |
| Official URL: | http://dx.doi.org/10.1017/S0014479700020159 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/10482 |
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