An experiment was conducted during rabi season of 2013, under irrigated condition, at Varanasi to study the effect of fertility levels and cow urine application on growth and yield of Indian mustard [Brassica juncea (L.) Czernj. & Cosson]. Application of 100 % fertility level and 900 liter cow urine significantly increased the dry matter accumulation, physiological growth and yield attributes as well as yield of mustard in comparison to 50 % RDF and control respectively. Application of 100 % RDF produced 12.1 and 31.2 % higher seed yield than 75 % and 50 %RDF respectively. As regards the urine application, the increasing levels of urine application up to 900 l cow urine ha-1 enhanced the yield attributes as well as seed and stover yield. The investigation clearly indicated that under irrigated ecosystem of Varanasi no reduction in the recommended fertilizer dose to mustard is possible. Increasing levels of cow urine application up to 900 l ha-1 as basal dose markedly improved growth parameters, yield attributes as well as seed and stover yield of mustard. Fertilizer application at 120 Kg N + 60 KgP2O5 + 60 Kg K2O +40 Kg S ha-1 and 900 l cow urine ha-1 produced maximum seed as well as stover yield and proved most remunerative.
Growth, Indian mustard (Brassica juncea L.), SPAD, stover, Yield and yield attributes.
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