Bio-efficacy, Post-emergence herbicides, Transplanted rice

A field experiment was conducted to assess the bio efficacy of two new generation post emergence herbicides, viz. fenoxaprop-p-ethyl and carfentrazone            ethyl in transplanted rice along with bispyribac-sodium, hand weeding twice and weedy check. The weed flora was dominated by broad-leaf weeds, followed by sedges and grasses. The lowest total weed density and weed dry weight, the highest weed control efficiency, net returns and B: C ratio, were recorded in carfentazone-ethyl 25 g/ha, which was at  par with its lower dose (20 g/ha).