Integrated weed management in coriander (Coriandrum sativum

Abstract

A field experiment was conducted at National Research Centre on Seed Spices, Ajmer (Rajasthan), during the rabi 2005-07 to study the integrated weed management in coriander (Coriandrum sativum L.). The results revealed that pre-emergence application of oxadiargyl @75 g/ha + 1 hand weeding at 45 days after sowing resulted into significantly maximum vegetative growth and seed yield (1 340 kg/ha) of coriander, followed by pre-emergence application of pendimethalin @ 1 kg/ha + 1 hand weeding at 45 days after sowing. Among the weed management practices, weed-free treatment was most effective in reducing the dry weight of weeds and recorded the highest weed control efficiency (85.94%), followed by pre-emergence application of oxadiargyl @75 g/ha + 1 hand weeding at 45 days after sowing (78.31%). However, the maximum net returns (Rs 46 561/ha) and highest benefit:cost ratio (3.22:1) were obtained under pre-emergence application of oxadiargyl @75 g/ha + 1 hand weeding at 45 days after sowing among all the treatments including weed-free treatments.