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Efficiency of coated-urea materials in rice (Oryza sativa) - wheat (Triticum aestivum) system under partially reclaimed sodic soil

Indian Agricultural Research Journals

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Title Efficiency of coated-urea materials in rice (Oryza sativa) - wheat (Triticum aestivum) system under partially reclaimed sodic soil
 
Creator CHAUHAN, R P
 
Subject coated-urea materials, rice-wheat system, sodlc soil
 
Description In a field experiment in partially reclaimed sadic soil different coated-urea materials, viz gypsum-coated urea,coal tar-coated urea, sulphur-coated urea at 3 levels of N, viz 40,80 and 120 kg/ha were compared with the prilled ureaunder rice (Oryza sativa L.) - wheat (Triticum aestivum L. emend. Fiori & Paol.) cropping system. Among coated-ureamaterials neem cake-coated urea and sulphur-coated urea were at par and significantly superior to the prilled urea withrespect to the yield, yield attributes and N uptake and its recovery in rice-wheat system. However. maximum values ofall these parameters were recorded with neem cake-coated urea. Grain yield of both the crops at 80 kg.N/ha as neemcake-coated urea and sulphur-coated urea were at par with those obtained with prilled urea at 120 kg N/ha. Averagerecovery of applied N with neem cake-coated urea was 32.1 and 37.5% in rice and wheat crops as against 20.5 and27.1 % with prilled urea respectively. Neem cake-coated urea followed by sulphur-coated urea also maintained higherconcentrations of NH 4'-N in soil under rice and NH 4'-N and N0 3'-N under wheat than prilled urea throughout the crop growth.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-01-24
 
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/26716
 
Source The Indian Journal of Agricultural Sciences; Vol 69, No 5 (1999)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/26716/12177
 
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