Nutrient content, uptake and economics of sweet corn [Zea mays (L.) spp. saccharata] grown under organic management practices

A field experiment was conducted during kharif season of 2014 at Rajasthan College of Agriculture, Udaipur (Rajasthan)to study the nutrient content, uptake and economics of sweet corn [Zea mays (L.) ssp. saecharata] grown under organic management practices.The significantly increased nutrient content and uptake of N, P and K by grain and fodder of sweet corn were registered with vermicompost 6 t/ha+intercropping with blackgram+mataka khad+compost tea at 45 and 60 DAS which was at par with vermicompost 6 t/ha+intercropping with blackgram+BD-500 75 g/ha+BD-501 2.5 g/ha and vermicompost 6 t/ha+mataka khad+compost tea at 45 and 60 DAS. Results revealed that application of vermicompost 6 t/ha+intercropping with blackgram+mataka khad 5%+compost tea 2% at 45 and 60, DAS significantly increased the content and uptake of N, P and K. Similarly maximum gross returns, net returns and B: C ratio were recorded under treatment of vermicompost 6 t/ha+intercropping with blackgram+mataka khad 5%+compost tea 2% at 45 and 60 DAS.