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49
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2
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2017
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201
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203
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Short communications
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Response of black gram to integrated weed management with varying levels of phosphorus and potassium
Toshinenla Pongen and D. Nongmaithem
DOI :
http://dx.doi.org/10.5958/0974-8164.2017.00052.1
Email :
debikanong@gmail.com
Address :
Department of Agronomy, SASRD, Nagaland University, Medziphema, Nagaland 797 106
Keywords
Black gram, Hand weeding, Integrated weed managment, Phosphorus, Potassium
Abstract
The dominant broad-leaf weeds in the experiment field were Ageratum conyzoides, Amarantus viridis,Chromalaena odorata,Commelina bengalensis, Phyllanthus niruri and Mimosa spinosa. Cyperus rotundus and Cyperus iria were dominant among sedges. Among grassy weeds, Cynadon dactylon,Digitaria sanguinalis, Eleusine indica, Echinochloa colona were most dominant in blackgram. Hand weeding at 25 and 45 DAS gave maximum decrease in weed density, dry weight of weeds and recorded the highest growth and yield of blackgram; followed by application of pendimethalin 0.75 kg/ha fb 1 hand weeding at 25 DAS. Among the fertilizer doses, application of 40 kg/ha P2O5 + 40 kg/ha K2O recorded the highest seed and stover yields.