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Integrated nitrogen management with in-situ green-manuring and urea application in wetland rice (Oryza sativa)

Indian Agricultural Research Journals

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Title Integrated nitrogen management with in-situ green-manuring and urea application in wetland rice (Oryza sativa)
 
Creator PANDA, M M
REDDY, M D
MOHANTY, S K
BHADRACHALAM, A
CHAKRAVORTI, S P
 
Subject —
 
Description A field experiment was carried out during 1988 and 1989 to study the effect of integrated nitrogen management using in-situ green-manuring with prickly sesban or dhaincha [Sesbania cannabina (Retz.) Pers., syn S. aculeata Pers. vat cannabina Baker] and urea N for a cropping sequence rice (Oryza sativa L.)-fallow-rice. Urca was applied to supply 60 and 120 kg N/ha in 3 splits, alone or with green-manuring, to supply 20 tonnes/ha green matter (equivalent to 60 kg N/ha). There was response only up to 60 kg N/ha applied as urea. Green-manure + 60 kg N/ha as urea was comparable to 120 kg N/ha in terms of grain and straw yields. The effect of green-manure compared with chemical fertilizer (urea) varied from 44 to 51 %and increased the rice yield by 40% compared with 120 kg N/ha. Green-manuring + urea increased the N uptake, apparent recovery and N -use efficiency by 36, 67 and 101% compared with urca alone at 120 kg N/ha. There was no residual effect of fertilizer N, whereas the effect of green-manuring was Significant, giving 33-44% more grain yield and 20-29% straw yield compared with urea.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-04-15
 
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/28962
 
Source The Indian Journal of Agricultural Sciences; Vol 64, No 1 (1994)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/28962/13116
 
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