Nitrogen fertilizer losses from rice soils and control of environmental pollution problems

Nitrogen (N) requirements of rice crop are met from both the soil and fertilizers. Because of acute N deficiency in most rice soils, fertilizer N must be applied to meet the crop demand. N fertilizer applied to rice crops is partially lost through different mechanisms, including ammonia volatilizati...

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Bibliographic Details
Published in:Communications in soil science and plant analysis 2005-01, Vol.36 (11-12), p.1625-1639
Main Authors: Choudhury, A.T.M.A, Kennedy, I.R
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
air pollution
ammonia
Biological and medical sciences
denitrification
environmental pollution
fertilizer application
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
groundwater contamination
leaching
literature reviews
losses from soil
nitrogen
nitrogen fertilizers
Nitrogen losses
Nitrogen, phosphorus, potassium fertilizations
nonpoint source pollution
pollution control
rice soils
Soil science
Soil-plant relationships. Soil fertility. Fertilization. Amendments
volatilization
water pollution
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Summary:Nitrogen (N) requirements of rice crop are met from both the soil and fertilizers. Because of acute N deficiency in most rice soils, fertilizer N must be applied to meet the crop demand. N fertilizer applied to rice crops is partially lost through different mechanisms, including ammonia volatilization, denitrification, and leaching. These losses may cause environmental problems such as polluting the atmosphere, aquatic systems, and groundwater. These problems cannot be alleviated completely. However, they can be reduced a considerable extent by various techniques. Research has been conducted around the world to minimize N fertilizer losses. This paper reviews this information on N fertilizer losses, indicating management practices for minimizing these losses from the soil-water system.
ISSN:0010-3624
1532-2416
DOI:10.1081/CSS-200059104