Effect of Organic Manures, Green Manures and Liquid Organic Manure on Yield, Economics, Energy use Efficiency and Energy Productivity in Cotton

摘要

The field experiment was carried out at MARS, Dhanvad during Kharif, 2010-11 and 2011-12 to study the “Effect of organic manures, green manures and liquid organic manure on yield, economics, energy use efficiency and energy productivity in cotton" The results of the tioo years pooled data revealed that, combined application of compost (50%) + vermicompost (50%) equivalent to RDF + green leaf manure as mulch with application of jeevammtha @ 500 l/ha recorded higher kapas yield (1640 kg) and it is superior over RDF alone (1522 kg/ha). Combined application of crop residue (50%) + vermicompost (50%) equivalent to RDN with lucerene with jeevamrutha @ 500 l/ha surface application recorded significantly highernet returns (Rs. 60009 ha~(-1)) over other combinations. Among the nutrient management practices, application of compost (50%) + vermicompost (50%) equivalent to RDN recorded significantly higher energy use efficiency and energy productivity (1.80and 0.151 kg MJem: rfcl234@rediffmail.com; babaladhbrediffninil.com respectively) over FYM @ 51 ha~(-1) + RDF (1.65 and 0.14 kg MJ~(-1) respectively). Application of GLM @ 7.5 tha~(-1) with surface application of jeevamrutha @ 500 I ha~(-1) recorded significantly higher energy use efficiency and energy productivity (1.78 and 0.151 kg MJ~(-1), respectively) as compared to sunnhemp green manuring alone and was on par with lucerne green manure + surface application of jeevamrutha @5001 haK Combined application of compost (50%) + vermicompost (50%) equivalent to RDN + GLM with surface application of jeevamrutha @ 5001 ha~(-1) recorded significantly higher energy use efficiency and energy productivity (1.84 and 0.156 kg MJ~(-1) respectively over RDF alone (1.60 and 0.135 kg M]~(-1) respectively).