Bulb yield and nutrient uptake by onion as affected by weed control

A weed control experiment was undertaken on onion cv. Patna Red comprising of hand weeding and application of weedicides, viz., flushmoralin, pendimethalin and metochlor. Application of pendimethalin and fluchloralin each at 1.0 kg/ha along with one hand weeding gave the best result with regard to weed dry matter content, nutrient uptake and depletion. The results were comparable with three hand weeding treatment.