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Energy scenario, carbon efficiency, nitrogen and phosphorus dynamics of pearlmillet mustard system under diverse nutrient and tillage management practices

Author: Parihar, C.M.
Author: Bhakar, R.N.
Author: Rana, K.S.
Author: Jat, M.L.
Author: Singh, A.K.
Author: Jat, S.L.
Author: Parihar, M.D.
Author: Sharma, S.
Year: 2013
ISSN: 1991-637X
Abstract: Under limited moisture conditions integrated nutrient management and conservation agriculture (CA) practices plays a vital role. Information on effect of integrated nutrient management (INM) with CA practices in pearlmillet (Pennisetum glaucum) ?mustard (Brassica juncea) system is lacking. The present experiment was conducted during 2005-06 and 2006-07 in rainy and winter seasons, at IARI, New Delhi, India to investigate the effect of INM and tillage on pearlmillet -mustard system under limited irrigation. Ridge and furrow (RF) sowing produced significantly higher carbon efficiency (CE), energy output, net returns and economic yield (3768 kg ha-1) of pearlmillet-mustard sequence. The application of 30 kg N + 30 kg P2O5 + FYM at 6 t/ha to pearlmillet produced significantly higher yield attributes, economic yield (3982 kg ha-1), energy output (194023 MJ ha-1) of the system and CE and net return (189.41 and 315.8 US$ ha-1) of pearlmillet and mustard individually over control, 30 kg N + 20 kg P2O5/ha and sole application of FYM at 6 t/ha. Direct application of 60 kg N + 40 kg P2O5/ha to mustard produced significantly higher yield attributes, economic yield (3692 kg ha-1), energy output (182097 MJ), net return (296.73 US$ ha-1) and CE (10.80 and 11.51 during both the years), over control and 30 kg N + 20 kg P2O5/ha. The application of INM with ridge furrow sowing increased available N and P contents in the soil. Whereas, the consumptive use, moisture use rates and moisture use efficiency were the highest under ridge furrow sowing of pearlmillet-mustard system.
Language: English
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Type: Article
Pages: 903-915
Journal issue: 10
Journal: African Journal of Agricultural Research
Journal volume: 8
DOI: 10.5897/AJAR12.810
Keywords: Carbon efficiency
Keywords: consumptive use
Keywords: energy output
Keywords: pearlmillet-mustard system
Keywords: N and P balance
Keywords: Soil fertility
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  • Sustainable Intensification
    Sustainable intensification agriculture including topics on cropping systems, agronomy, soil, mechanization, precision agriculture, etc.

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