Author(s):

Mousumi Dash and Basudev Behera

Abstract: A field experiment was conducted during summer 2015-16 at Agronomy Main Research Farm, Odisha University of Agriculture and Technology, Bhubaneswar to find out the effect of date of showing and weed management on nutrient uptake and economics of green gram (Vigna radiata L.) of 2 varieties viz (V1- Summer Moong Ludhiana-668, V2-Nayagarh local). From the experiment it was revealed that in all cases the SML-668 variety was superior to the Local variety i.e. Nayagarh Local. Sowing the crop on 31 January resulted higher yield (568 and 2139 kg/ha seed and haulm yield respectively) as well as higher nutrient uptake (39.68, 6.88 and 43.27 kg/ha N, P and K respectively) as compared to early and late date of sowing. The weed management study also found out to be in favour of application of pendimethalin 1.0kg/ha as pre-emergence(PE) enhancing the yield (582 and 2159 kg/ha seed and haulm yield respectively) along with nutrient uptake of (38.81, 6.91 and 42.47 kg/ha N, P and K respectively).All the 3-treatment discussed above recorded highest benefit cost ratio i.e. nearly 2.0 (2.21 when sowing on 31 January, 2.24 on application of pendimethalin and 1.95 with the variety SML-668) as compared to other treatments in the experiment.

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