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Effect of integrated nitrogen management on yield and nitrogen nutrition of irrigated. rice (Oryza sativa)

Indian Agricultural Research Journals

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Title Effect of integrated nitrogen management on yield and nitrogen nutrition of irrigated. rice (Oryza sativa)
 
Creator KHAN, UBAID
MISHRA, B
PACHAURI, PUNEET
KUMAR, YOGESH
 
Subject Rice; Nitrogen; Biomass; Yield; Nitrogen uptake; Farmyard manure; Green manure; Wheat straw; N use efficiency
 
Description Field experiments were conducted in rainy (kharif) season of 1999 and 2000 to study the effect of 3 integrated N management options using farmyard manure, green manure and wheat straw incorporation on yield and N nutrition of rice (Oryza sativa L.). Total above ground biomass and plant N uptake at different growth stages of rice crop were significantly affected by various N sources used alone and in combination with urea-N comparing to, state fertilizer N recommendation for rice, i e 120 kg N/ha, optimum N dose calculated from the response curve were higher in both the years of study. Grain and straw yields ofrice were significantly increased by various sources ofN. Use ofgreen manure in combination with urea gave the sanle yield of rice grain and straw as farmyard manure or wheat straw incorporated in conjunction with urea-N at 150 kglha. These 3 integrated nitrogen management options were found at par with urea-N alone at 150 kg/ha in grain yield. Incorporation of wheat straw,4 weeks before rice planting did not show any adverse effect on rice growth. Green manure in conjunction with urea gave higher total N uptake than urea alone at 150 kg N/ha. Integrated use of urea with organic sources has shown increased nitrogen use efficiency in rice. 
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2011-01-05
 
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/2647
 
Source The Indian Journal of Agricultural Sciences; Vol 76, No 3 (2006)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/2647/761
 
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