comparative study of weed control by covering crop, herbicide and hand hoeing in maize ( (Zea mays L.), Guar (Cyamopsis tetragonoloba L.) productivity and associated weeds.
Abstract: Two field experiments were performed in 2001 and 2002 seasons at Sids Agricultural Research Station to study the effect of intercropping system of maize with guar as a forage crop (Cyamopsis tetragonoloba L.) and weed control treatments on fresh weight of common associated weds, yield and yield components of maize and green yield of guar. Results showed that weed control treatments i.e. sowing cover crop (local and imported varieties of guar), fluroxypyr at the rate of 200 cm3/fed. and hand hoeing twice reduced number and fresh weight of broad-leaved, grassy and total weeds in both seasons. The greatest reduction percentage (91%) in fresh weight of total weeds were resulted from sowing imported guar varieties as a cover crop followed by hand hoeing twice (88.6%), while sowing local varieties guar as a cover caused reduction by (87%) and fluroxypyr by (85%) compared to unweeded check in 2001 season. Hand hoeing twice gave the highest reduction percentage in fresh weight of total weeds (77%) followed by sowing imported guar as a cover (58.8%), sowing local guar as a cover (56%) and floroxypyr (2.2%) compared to unweeded control. The less of eradication in fluroxypyr treatment in the second season due to increased density of grassy weeds than broad-leaved weeds in the field experiment and floroxypyr herbicide was effective against broad-leaved weeds and with no effect on grassy weeds. Number of ears / plant, ear weight and grain yield / fed. for maize increased significantly by weed control treatments different in both seasons compared to the unweeded control. The best grain yield of maize was obtained from sowing legume cover crop (guar) as green fodder crop in the summer season under maize plants for weed control followed by hand hoeing twice and fluroxypyr in the both seasons. Also data indicated that the greatest gross income, profit and profitability was obtained from weed control by guar as acover crop followed by hand hoeing twice and fluroxypyr in both seasons, respectively.
Publication year 2003
Pages pp. 574-585
Organization Name
City القاهرة
serial title Egypt, J., Appl. Sci.; .
ISSN 1110-1571
Author(s) from ARC
Agris Categories Weeds and weed control
AGROVOC
TERMS		 Chemical control. Cultural control. Cyamopsis psoralioides. Intercropping. Zea mays.
Publication Type Journal
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