Weed control in legumes in the Philippines
1986
Moody, K. | Robles, R.P. | Floresca, E.T. (International Rice Research Inst., Los Banos, Laguna (Philippines))
Legumes which are widely grown in the Philippines are an important source of human and animal feed. In this paper, weed science research pertaining to the various legume crops grown in the Philippines is reviewed and summarized by crop. Weed competition which is important in all legume crops, particularly when they are grown in the wet season and under irrigated conditions in the dry season, results in a significant reduction in yield which is brought about primarily by a reduction in the number of pods per plant. Weed competition is of little importance when the crop is grown under rainfed conditions, on residual soil moisture and limited end-of-season rain, in the dry season. The period of critical weed competition varies depending on the crop grown, the season, and the weed flora, but in most cases 4 to 6 weeks weed control following planting is adequate. The weed species reported to occur in legumes in the Philippines are listed and methods of weed control- cultural, manual, mechanical and chemical- are discussed. Wherever possible, data on the economics of weed control are included.
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