Response of Indian mustard (Brassica juncea) varieties to nitrogen, phosphorus and potassium fertilizers

A field experiment was conducted during 1988-90 on sandy-clay loam soil to study the response of Indian mustard [Brassica juncea (L.) Czernj. & Cosson] varieties to NPK levels at Baraut (Meerut). Plant height, number of branches, dry-matter accumulation/plant, number of siliquae/plant, 1,000-seed weight, seed and oil yields/ha increased significantly with the increasing levels of fertilization up to 120 kg N + 60 kg P2O5 + 60 kg K2O/ha. All these growth and yield attributes were significantly higher in 'Varuna' and 'Pusa Bold' than 'Prakash' and 'RH 8113'. The interactions of 'Varuna' and 'Pusa Bold' Bold: with higher levels of fertilization gave maximum seed yield/ha and dry-matter accumulation/plant respectively than 'RH 8113' without fertilization gave the minimum.