| Volume |
Issue |
Year |
Page No |
Type |
PDF Download |
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41
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2009
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41
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45
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Full length articles
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Effect of Atrazine on Weed Management in Winter Maize-greengram Cropping System in Central Plain Zone of Uttar Pradesh
V. K. Verma, A. N. Tewari and S. Dhemri
DOI :
IJWS-2009-41-1&2-7
Email :
Address :
Department of Agronomy C. S. Azad University of Agriculture and Technology, Kanpur (U. P.)
Keywords
Crop diversification, crop rotation, residual effect
Abstract
Field investigation was carried out during two consecutive years (2005-06 and 2006-07) at Kanpur to find out direct and residual effects of atrazine application with regard to weed growth and crop growth of maizegreengram cropping system. Manual weeding followed by earthing operation done at 20 days after sowing (DAS) prevented weed competition (85.98% WCE) resulting in higher values of growth attributes viz., plant height 30.99%, culm girth 36.81%, leaf area index 76.19%, dry weight of plant 41.55% and crop growth rate 37.63% than weedy check which recorded lowest values of growth characters. Atrazine 0.50 kg/ha showed at par results with two manual weedings done at 20 and 40 DAS. Atrazine applied in maize had no residual effect on weed emergence and crop stand of succeeding greengram