System productivity and profitability of sweet corn – chickpea cropping system as influenced by land configuration, plant population and integrated nitrogen management

Abstract

Kharif and Rabi season of 2010-11 and 2011-12, to study the system productivity and profitability of sweet corn-chickpea cropping system as influenced by land configuration, plant population and integrated nitrogen management. Sweet corn yields were significantly higher in ridges and furrow with plant population of 55556 plants ha-1 and 100% N through inorganic fertilizer. However, sowing of sweet corn on ridges and furrow with plant population of 55556 plants ha-1 (60 x 30 cm 2) along with substitution of 50 per cent N through organic manure (vermicompost) to sweet corn crop exhibited remarkable residual effect on yield and GMR, NMR, B:C ratio of chickpea. This indicates benefits of vermicompost on subsidizing season chickpea than prevailing sweet corn. The system equivalent yield, GMR, NMR, B:C ratio of sweet corn-chickpea cropping sequence was maximum with sowing of sweet corn on ridges and furrow with plant population of 55556 plants per hectare (60 x 30 cm 2) along with application of 100 per cent N through inorganic fertilizers to sweet corn. System production efficiency and economic efficiency were also higher with these treatments.