1Center for Agroforestry, Forage Crops and Green Belt, S.D. Agricultural University, Sardarkrushinagar, 385 506, Gujarat
Department of Agronomy, C.P. College of Agriculture, S.D. Agricultural University, Sardarkrushinagar, 385 506, Gujarat
Online published on 30 November, 2016.
A field experiment was conducted at Sardarkrushinagar to study the influence of different green manuring crops and nitrogen management on yield, yield attributes and economics of rabi sweet corn (Zea mays) during kharif2012 and rabi2013. The experiment was laid out in split plot design and replicated four times, comprising of 15 treatment combinations with five treatments of kharif green manuring viz; control (greengram seed purpose), clusterbean (green manuring), horsegram (green manuring), cowpea (green manuring) and sunnhemp (green manuring) and three levels of nitrogen (90, 120, and 150 kg ha−1) in rabi season. Sunnhemp green manuring as well as 150 kg N ha−1 gave significantly higher stem girth and yield attributes of cob length, cob girth, husked and unhusked green cob weight, green cob yield and dry matter production over rest of the treatments. The interaction effect of sunnhemp green manuring and150 kgN ha−1was significant on green cob yield. Treatment combination sunnhemp green manuring and 150 kg N ha−1recorded the maximum net realization (Rs. 174111 ha−1) and BCR (4.77) value.
Green manuring, nitrogen, sweet corn, growth, yield and economics
