Article contents
Ammonia volatilization from rice fields in alkaline soil as influenced by soil moisture and nitrogen
Published online by Cambridge University Press: 27 March 2009
Summary
Volatilization of ammonia from urea applied to rice on a soil of pH 9·3 was measured during 1982 and 1983 at Karnal. For three moisture regimes (continuous submergence, and irrigation 1 day and 4 days following subsidence of ponded water) mean ammonia losses varied from 28·2 to 31·8 kg N/ha. For urea applications between 40 and 120 kg N/ha, mean ammonia losses varied from 26.1 to 33.7 kg N/ha. Ammonia losses were highest on the second day following urea application and dropped to near zero 7–8 days after application.
- Type
- Research Article
- Information
- Copyright
- Copyright © Cambridge University Press 1989
References
- 6
- Cited by