Abstract

Adagba M. A, Gbanguba A. U, Ndarubu A. A, U. Ismaila1 and Ukwungwu M.N

A field experiment was conducted during the raining season of 2010 at the experimental field of National Cereals Research Institute, Yandev and Badeggi to evaluate post emergence herbicides on control efficiency and performance of transplanted lowland rice. The treatments were Orizo plus at 4 litres per hectare, 2.4 kg propanil plus 375 ml MCPA /ha, 2.4 kg propanil plus 200 ml MCPA/ha, 2.4 kg propanil plus 120 g condax, applied at 3 weeks after planting. 1.6 kg propanil plus 250 ml/ha MCPA was applied at 3 and 5 weeks after planting. Also 240 g condax per hectare was applied at planting and 3 weeks after planting and Butaclor 4 L/ha at planting. Other treatments included hand weeding at 3 and 6 weeks after planting and a weedy check as control. The experiments were laid out in a Complete Randomized Block Design and replicated thrice. The variety of rice used was FARO 52 (WITA 4). Application of 2.4 kg propanil plus 375 ml MCPA /ha, 2.4 kg propanil plus 200 ml MCPA/ha drastically reduced both weed density and dry matter at both location throughout the sampling periods. Higher weed control efficiency was also recorded with application of 2.4 kg propanil plus 375 ml MCPA /ha and 2.4 kg propanil plus 200 ml MCPA/ha. Rice yield and yield components were superior with the application of 2.4 kg propanil plus 375 ml MCPA /ha and 2.4 kg propanil plus 200 ml MCPA/ha.