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Crop-weed competition in onion (Allium cepa) under mid-hill condition of North-west Himalayas*

Indian Agricultural Research Journals

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Title Crop-weed competition in onion (Allium cepa) under mid-hill condition of North-west Himalayas*
 
Creator PRAKASH, VED
KUMAR, NARENDRA
SRIVASTVA, A K
 
Subject Crop-weed competition; Onion; Mid-hills; TSS; Weed competition index
 
Description An experiment was conducted during winter season of 1999-000 and 2000-2001 to find out the critical period of crop-weed competition in onion (Allium cepa L.) with a set of 10 treatments comprising weedy and weed-free conditions up to 30, 60, 90, 120 days after transplanting and harvest. Weed competition index increased with increase in duration of weedy condition ranging from 2 to 77.9. On the other hand, increase in weed-free period for different duration from transplanting to 90 days after transplanting decreased weed competition index to 1.7 from 77.9"Weed-free condition beyond 90 days after transplanting did not bring significant impr~vement in bulb yield. The critical period ofcrop- weed competition in onion was observed to be between 30-90 days after transplanting. Hence, the crop should be kept weed-free during this period to realize the higher bulb yield and monetary returns.'>p/>
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2011-01-10
 
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/3354
 
Source The Indian Journal of Agricultural Sciences; Vol 76, No 12 (2006)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/3354/1378
 
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