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Role of crop competition in managing weeds in rice, wheat, and maize in India: A review

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Title Role of crop competition in managing weeds in rice, wheat, and maize in India: A review
 
Creator Ramesh, Kulasekaran
 
Contributor Rao, A . Narayana
Chauhan, Bhagirath
 
Subject crop competition
direction of sowing
weed competitive cultivars
Maize
Wheat
Rice
 
Description In India, the three staple food crops viz., rice, wheat, and maize, contribute more than four-fifths of the
total food grain production. Among the several factors limiting their productivity, weeds account for
about 40%. In order to meet the requirements of growing population, it is essential to improve productivity
by reducing such unwarranted losses. Managing weeds with crop competition is an ecofriendly
approach. Once the mechanisms of competition are understood, further improvements in
weed control could be gained by manipulating other agronomic practices. The choice of cultivars, crop
density, seeding rate, direction of planting, and intercropping could be exploited to enhance crop
competitiveness against weeds. The variation in competitiveness and weed suppression among cultivars
has been documented in rice, and to a lesser extent in wheat and maize. Research has demonstrated that
the integration of crop competitiveness with other methods, such as the use of herbicides and manual
weeding, is successful in managing weeds. However, in India, greater efforts are needed to exploit crop
competitiveness for managing weeds in rice, wheat and maize. The success of these approaches relies on
proper understanding of the biology and ecology of weeds, to identify weak points in their life cycle.
 
Date 2017-05-31
2017-02-08T23:18:29Z
2017-02-08T23:18:29Z
 
Type Journal Article
 
Identifier https://mel.cgiar.org/dspace/limited
http://oar.icrisat.org/id/eprint/9801
Kulasekaran Ramesh, A. Narayana Rao, Bhagirath Chauhan. (31/5/2017). Role of crop competition in managing weeds in rice, wheat, and maize in India: A review. Crop Protection, 95, pp. 14-21.
https://hdl.handle.net/20.500.11766/5606
Timeless limited access
 
Language en
 
Rights CC-BY-NC-4.0
 
Format PDF
 
Publisher Elsevier (12 months)
 
Source Crop Protection;95,(2016) Pagination 14,21