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Control of urea hydrolysis and nitrification in soil by chemicals - Prospects and problems

OAR@ICRISAT

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Relation http://oar.icrisat.org/3959/
http://dx.doi.org/10.1007/BF02211691
 
Title Control of urea hydrolysis and nitrification in soil by chemicals - Prospects and problems
 
Creator Sahrawat, K L
 
Subject Soil Science
Fertilizer Appications
 
Description A review is made of the recent work to assess the prospects of regulating urea hydrolysis and nitrification processes in soils by employing chemicals that can retard urea hydrolysis and nitrification. The possible benefits from control of nitrogen transformations in terms of conserving and enhancing fertilizer nitrogen efficiency for crop production and the problems associated with their use with regard to N metabolism of plants have also been discussed with examples. Prospects of using cheap and effective indigenous materials and chemicals for control of urea hydrolysis and nitrification under specific soil situations appear eminent in improving the fertilizer nitrogen efficiency. Urease inhibitors may be helpful in reducing problems associated with ammonia volatilization if this is not offset by leaching of urea. On the other hand retardation of nitrification appears useful in reducing losses that accompany nitrification due to leaching and denitrification, and with the plants that metabolize equally well with relatively higher amounts of NH4–N may be more effective in improving the utilization of fertilizer N under these situations
 
Publisher Kluwer
 
Date 1980
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/3959/1/Plant_and_Soil_57_335-352_%281980%29..pdf
Sahrawat, K L (1980) Control of urea hydrolysis and nitrification in soil by chemicals - Prospects and problems. Plant and Soil, 57 (2-3). pp. 335-352. ISSN 0032-079X