Effect of integrated nutrient management on grain yield and economic returns of hybrid rice
Studies on integrated nutrient management of hybrid rice revealed that both hybrids (PHB-71 and KRH-2) recorded significantly higher grain yield than high yielding check variety Jaya. Among organic sources of nutrients, green manure recorded maximum grain yield followed by farm yard manure and both sources were significantly superior over control (without organic sources). Application of graded levels of NPK increased grain yield significantly up 120:60:30 kg ha-1 NPK. Mean maximum net returns of Rs. 25,981 ha-1 was recorded under 120:60:30 kg NPK level with green manure application, while 120:60:30 kg ha-1 NPK + green manure recorded net returns of Rs. 19,769 ha-1, which was almost comparable with 120:60:30 kg ha-1 NPK application without organic manure (Rs. 18,596 ha-1).
Author : S.P. Singh and S.V. Subbaiah
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