Effect of blackgram genotypes and nitrogen on productivity, profitability and resource-use efficiency in maize (Zea mays) + blackgram (Vigna mungo) intercropping system
DOI:
https://doi.org/10.59797/ija.v64i4.5304Keywords:
Blackgram, Maize, Nitrogen, Productivity, Profitability, Resource-use efficiencyAbstract
A field experiment was conducted during the rainy season (kharif) of 2017 at Palampur, Himachal Pradesh, to study the effect of blackgram [Vigna mungo (L.) Hepper] genotypes and nitrogen levels on the performance of maize (Zea mays L.) + blackgram intercropping system. The experiment consisting of 12 treatment combinations including 5 genotypes (Himachal Mash 1, DKU 118, DKU 82, DKU 98 and DKU 99), 2 nitrogen levels (50% and 100% recommended dose of nitrogen) and 2 sole crops (maize and blackgram) was conducted under ran- domized block design with three replications. Maize + Himachal Mash 1 blackgram genotype with 100% recom- mended dose of nitrogen (RDN) exhibited significantly higher maize equivalent yield (5.04 t/ha), production effi- ciency (38.7 kg/ha/day), rainfall-use efficiency (2.15 kg/ha-mm), net returns ( 84,444/ha), benefit : cost ratio (3.2) and monetary efficiency ( 650/ha/day). While these attributes were lowest with maize + DKU 118 intercropping system with 50% RDN. As sole crops, blackgram recorded significantly higher maize equivalent yield, production efficiency, rainfall-use efficiency, net returns and benefit : cost ratio over maize. Maize + Himachal Mash 1 inter- cropping system with 100% RDN proved to be more productive and profitable treatment under mid-hill conditions of Himachal Pradesh.References
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