Effect of nitrogen fertilizer and weed management practices on weed growth and crop yield of zero-till transplanted rice

The application of N at recommended or higher dose (33% higher than recommended) effectively enhanced the growth and yield of rice crop by suppressing the weed growth in zero-till transplanted rice. Hand weeding thrice at 25, 55 and 75 days after transplanting (DAT) was the best in reducing weed growth and ultimately increased the grain yield of zero-till transplanted rice. Among the herbicidal methods, tank mix application of bispyribac-Na + 2,4-D minimized the weed growth at early stage and enhanced rice grain yield.