Growth, yield attributes and yield performance of Indian mustard (Brassica juncea L.) under graded levels of fertilizer

The present study was carried out with the objectives to study the growth characters of the variety under different fertility levels and yield performance of the Indian mustard variety NRCHB-101 under graded doses of fertilizer. The field experiment was conducted during 2016-17 at the Agronomy Main Research Station, OUAT, Bhubaneswar laid out in a Factorial Randomized Block Design with three replications and twelve treatments. At harvest, highest plant height and highest number of secondary branches was observed at P2 (40 kg ha-1) whereas highest number of primary branches were observed at N3 (120 kg ha-1). Numerically higher LAI was noticed at N2 (80 kg ha-1). The dose of 100kg N ha-1 produced maximum amount of seed and the dose of 80kg N ha-1 produced maximum stover. As regards P application, 40 kg P ha-1 had the highest yield of seed and stover. Highest seed yield and stover yield were obtained from 30 kg K ha-1. The increasing doses of nutrients have a positive effect on the seed yield and stover yield. The harvest index also increased significantly with increased doses of nitrogen application.