TY  - JOUR
AV  - restricted
N2  - 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.
UR  - http://indianjournals.com/ijor.aspx?target=ijor:jisss&volume=40&issue=2&article=031
SP  - 368
Y1  - 1992///
IS  - 2
EP  - 370
PB  - Indian Sociely of Soii Science
TI  - Transformations of Surface-applied Urea in Three Soils of Varying pH
ID  - icrisat4587
A1  - Sahrawat, K L
SN  - 0019-638X
JF  - Journal of the Indian Sociely of Soii Science
VL  - 40
ER  -