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Transformations of Surface-applied Urea in Three Soils of Varying pH

OAR@ICRISAT

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Relation http://oar.icrisat.org/4587/
http://indianjournals.com/ijor.aspx?target=ijor:jisss&volume=40&issue=2&article=031
 
Title Transformations of Surface-applied Urea in Three Soils of Varying pH
 
Creator Sahrawat, K L
 
Subject Soil Science
Fertilizer Appications
 
Description Urea hydrolysis, volatilization of ammonia and nitrification of ammonium were investigated in a Vertisol and two Alfisols. Urea hydrolysis was complete in 1 day and 2 days in the Vertisol (pH 8.35) and one Alfisol (pH 6.20), resp.; in the second Alfisol (pH 4.50), urea hydrolysis was not complete 10 days after urea addition. Volatilization of ammonia was greatest in the Vertisol (14% of added urea-N); in all soils volatilization had peaked by day 2. Nitrification in the soils was positively correlated with pH. The results are discussed.
 
Publisher Indian Sociely of Soii Science
 
Date 1992
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4587/1/JIndianSocSoilSci_40_368_-_370_1992.pdf
Sahrawat, K L (1992) Transformations of Surface-applied Urea in Three Soils of Varying pH. Journal of the Indian Sociely of Soii Science, 40 (2). pp. 368-370. ISSN 0019-638X