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Effect of weed management and nitrogen level on nutrient loss and tuber yield of potato (Solanum tuberosum)

Indian Agricultural Research Journals

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Title Effect of weed management and nitrogen level on nutrient loss and tuber yield of potato (Solanum tuberosum)
 
Creator JAISWAL, V P
 
Subject —
 
Description A field experiment was conducted during autumn 1989 and 1991 to study Ihe effect of levels of nitrogen (80,160 and 240 kg/ha) and weed management on weed infestation, nutrient loss and tuber yield of potato (Solanum tuberosum L.). The weed-control treatments were metribuzin @ 0.75 kg/ha, isoproturon @ 0.75kg/ha. paraquat @ 0.50 kg/ha, 1 weeding + 1 earthing-up and the unweeded control. All the weed-control treatments reduced Ihe weed infestation (33-87%), showing respectively 87, 67. 33 and 76% efficiency compared wilh the control, giving 36.0,34.5,31.2.32.6 and 26.9 tonnes/ha yield. All increase in N level from 80 to 160 and 240 kg/ha increased Ihe tuber yield to 27.5, 33.1 and 36.1 tonnes/ha respectively, without affecting the weed density and dry weight. The uptake by the weeds led to loss in yield of 4-87, 1-10 and 4-82 kg/ha of N, P and K respectively. The loss was maximum in The unweeded control and least under metribuzin treatment.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-04-26
 
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/29234
 
Source The Indian Journal of Agricultural Sciences; Vol 64, No 6 (1994)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/29234/13215
 
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