Effect of nutrient management on grain yield and nutrient uptake of
advance kar rice based cropping system in Tambaraparani Command
Area
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Author: T. Subramani, S. Nalliah Durairaj and B.J. Pandian,
p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 95, Issue: jul-dec,
DOI:
Abstract
Integrated application of green manure @ 6.25 t ha-1 and 100 per cent
NPK fertilizer enhanced the nutrient uptake and recorded higher grain yield of advance
kar rice. The residual effect of integrated nutrient managements adopted to advance
kar rice increased the nutrient uptake and grain yield of rice fallow blackgram. Combined
application of green manure and 100 per cent NPK fertilizer to advance kar rice,
raising rice fallow blackgram preceding to pishanam rice and application of 100 per
cent NPK fertilizer to pishanam rice recorded higher nutrient uptake, grain yield and
soil available nutrients, which was on par with 25 per cent lesser P and K and 25
per cent lesser NPK to pishanam rice. The results indicate that reduction of 25 per
cent NPK fertilizer to pishanam rice can be achieved through adoption of green manuring
along with recommended NPK to advance kar rice and cropping blackgram preceding
to pishanam rice without reduction in yield.
Keywords: Nutrient management, Rice, Rice fallow blackgram, Cropping system
