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Weed management strategies in maize (Zea mays): Effect on weed dynamics, productivity and economics of the maize- wheat (Triticum aestivum) cropping system in Indo-gangetic plains

Indian Agricultural Research Journals

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Title Weed management strategies in maize (Zea mays): Effect on weed dynamics, productivity and economics of the maize- wheat (Triticum aestivum) cropping system in Indo-gangetic plains
 
Creator SINGH, ADITYA KUMAR
PARIHAR, C M
JAT, S L
SINGH, BAHADUR
SHARMA, SAVITA
 
Subject Economics, Herbicide, Maize + cowpea, System productivity, Weed dynamics, Weed index
 
Description A field experiment was conducted to evaluate the efficacy of different herbicidal treatments along with cowpea (Vigna unguiculata (L.) Walp.) as live mulch crop as one of the treatments in preceeding maize (Zea mays L.) and their residual effects on succeeding wheat (Triticum aestivum L.) crop during 2010-11 and 2011-12. In maize field, metribuzin/atrazine was not found effective to control Dactyloctenium colonum, however, application of metribuzin 0.25 kg/ha as pre emergence (PE) followed by one hand weeding at 21 DAS was found most effective in controlling this weed. Metribuzin 0.25 kg/ha as PE + one hand weeding (HW) and maize + cowpea intercropping resulted in significantly lowest weed index which remained at par with atrazine as PE + one HW. However, after pooled analysis of results significantly highest grain yield (6 785 kg/ha) of maize was obtained with two HW, while highest grain yield of succeeding wheat (6 191 kg/ha) was obtained with the preceding effect of maize + cowpea. The highest pooled system productivity as maize equivalent yield (14 136 kg/ha) was obtained with maize + cowpea treatment which remained at par with application of atrazine or metribuzin as PE plus one HW. Significantly highest pooled gross (Rupees 153 864/ha), net (Rupees 101 948/ha) returns and B:C ratio (1.96) were also obtained with maize + cowpea, which remained at par with other tested weed management practices. The results indicate that inclusion of cowpea as cover crop in maize-wheat system will not only increase the profitability but also provide environment friendly option against the use of herbicides for weed management.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2015-01-19
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/46004
 
Source The Indian Journal of Agricultural Sciences; Vol 85, No 1 (2015)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/46004/19938
 
Rights Copyright (c) 2015 The Indian Journal of Agricultural Sciences