Carson, A.G. (1976) Weed competition and control in groundnuts (Arachis hypogaea L.). Ghana Journal of Agricultural Science, 9 (3). pp. 169-173.
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Abstract
Results from weed competition studies on groundnuts at Kwadaso in the forest zone of Ghana showed a 50% reduction in kernel yield due to unchecked weed growth. Four weeks of weed-free conditions after sowing were necessary to produce near optimum yields. The critical period of weed competition was at 4-6 weeks after sowing, and weeding beyond 4 weeks did not increase yields significantly. The most promising pre-em. herbicides at Kwadaso were metobromuron, fluorodifen and penoxalin [=pendimethalin] applied at 2, 3 and 1 kg/ha, respectively. At Nyankpala, in the savannah zone, napropamide at 4 kg, fluorodifen 2 kg and an alachlor + prometryne mixture at 1 kg/ha of each component were the best herbicides, in that order.
| Item Type: | Article |
|---|---|
| Additional Information: | SNNigam Collection |
| Uncontrolled Keywords: | Groundnut, sowing, weeding, herbicides, Ghana. |
| Author Affiliation: | Crops Res. Inst., P.O. Box 52, Nyankpala, Tamale, Ghana. |
| Subjects: | Plant Production > Farming Systems Plant Protection Crop Improvement |
| Divisions: | Groundnut |
| Depositing User: | Mr Balakrishna Garadasu |
| Date Deposited: | 03 Apr 2013 15:01 |
| Last Modified: | 03 Apr 2013 15:01 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/10173 |
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