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Influence of prickly sesban (Sesbania cannabina) intercropping in wet-seeded rice (Oryza sativa) on productivity, profitability, energetics and nitrogen balance under island ecosystem

Indian Agricultural Research Journals

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Title Influence of prickly sesban (Sesbania cannabina) intercropping in wet-seeded rice (Oryza sativa) on productivity, profitability, energetics and nitrogen balance under island ecosystem
 
Creator BALAKRISHNAN, M
RAVISANKAR, N
SWARNAM, T P
DIN, M
 
Subject Green manure intercropping; Nitrogen balance; Wet seeded rice
 
Description Experiments were conducted during 2005 and 2006 at Port Blair, to evaluate prickly sesban [Sesbania cannabina (Retz.) Pers.] intercropping in wet-seeded rice under island ecosystem. The results revealed that though rice + dhaincha or prickly sesban registered higher yield when dhaincha is incorporated mechanically with cono weeder (4.24 tonnes/ ha), it is on par with manual and manual + conoweeder incorporation. In terms of economics and energetics, rice+ dhaincha incorporation using cono weeder recorded higher net returns (Rs 15 876/ha) and higher energy ratio (8.38). Significant increase in available soil N was observed at harvest in rice + dhaincha (254.7 kg/ha) compared to sole rice (226.8 kg/ha). N loss was maximum in sole and unweeded conditions compared to rice + dhaincha incorporation through manual or conoweeder or its combination.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2011-01-06
 
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/2792
 
Source The Indian Journal of Agricultural Sciences; Vol 80, No 1 (2010)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/2792/895
 
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