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Effect of paper-factory sludge on yield and nutrient uptake of rice (Oryza sativa)

Indian Agricultural Research Journals

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Title Effect of paper-factory sludge on yield and nutrient uptake of rice (Oryza sativa)
 
Creator KARMAKAR, S
MITTRA, B N
GHOSH, B C
 
Subject Paper-factory sludge, Fly ash, Farmyard manure, Chemical fertilizers, Rice, Oryza sativa, Nutrient uptake
 
Description A field experiment was conducted in acid lateritic soil during the wet season (June to October) of 1995 and 1996 at Kharagpur to study the effect of solid paper-factory sludge and fly ash on transplanted rice (Oryza sativa L.) and find out their suitable time of application. The application of paper-factory sludge with fly ash and chemical fertilizers significantly enhanced grain and straw yields 3.6 and 3.3% than those grown with farmyard manure or its combination with fly ash and chemical fertilizers. The paper-factory sludge along with fly ash incorporated at transplanting proved more effective inincreasing yield (7.9%) of rice than their application at 30 days before transplanting. The uptake of N and P was higher(9.5 and 3.3 kg/ha) when paper-factory sludge along with fly ash was applied at transplanting compared with their application at 30 days before transplanting. Such trend in K uptake could be noted only in the second year. The paper-factory sludge and fly ash also improved the soil health by raising pH from 5.30 to 5.82 and organic carbon content from 0.32 to 0.46 %. The availability of N, P and K was also increased from 163.2.to 215..1, 14.9 to 25.3 and 130.0 to 146.8 kg/ha respectively.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2014-05-07
 
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/40428
 
Source The Indian Journal of Agricultural Sciences; Vol 71, No 11 (2001)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/40428/18106
 
Rights Copyright (c) 2014 The Indian Journal of Agricultural Sciences