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Computing fertilizer N dose for rice (Oryza sativa) and wheat (Triticum aestivum) for high yield and profit

Indian Agricultural Research Journals

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Title Computing fertilizer N dose for rice (Oryza sativa) and wheat (Triticum aestivum) for high yield and profit
 
Creator BRAR, B S
DHILLON, N S
 
Subject farmyard manure, fertilizer N, yield response, economics, rice, Oryza sativa, wheat, Triticum aestivum
 
Description A long-term field experiment was conducted at university farm, Ludhiana, for 4 years (1988-92) with rice (Oryza sativa L,) and wheat (Triticium aestivum L. emend, Fiori & Paol) in rotation with 20 fertilizer treatments, These treatments comprised 5 levels of N, 4 levels of P and 3 levels of K with and without addition of farmyard manure (in addition to 4 control plots) in 4 artificially created fertility strips of a uniform Held, Both rice and wheat responded significantly to N application, The yield response, value ofthe additional produce over preceding N level, profit/ha and rate of marginal response declined sharply with increase in fertilizer N level. Similarly, marginal rate of return also declined sharply with increase in fertilizer N dose, Considering the marginal rate of return of Rs 2.50 or more for each rupee spent on fertilizer N as optimum, fertilizer N dose was worked out to be 125 and 100 kg N/ha in rice and 125 kg N/ha in wheat without and with farmyard manure respectively. Addition of farmyard manure raised the production potential of both rice and wheat and saved about 25 kg N/ha in rice.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-05-17
 
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/30015
 
Source The Indian Journal of Agricultural Sciences; Vol 67, No 9 (1997)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/30015/13548
 
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