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Soil fertility in flooded and non-flooded irrigated rice systems

OAR@ICRISAT

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Relation http://oar.icrisat.org/5717/
http://dx.doi.org/10.1080/03650340.2010.522993
 
Title Soil fertility in flooded and non-flooded irrigated rice systems
 
Creator Sahrawat, K L
 
Subject Soil Science
 
Description The lowland rice system in Asia makes a major contribution to the global rice supply and is often cited as an example of a sustainable system in which two or three crops of rice are grown in sequence under submerged conditions. However, water shortages are becoming critical in some regions for lowland rice cultivation; and there is high potential in exploring rice cultivation under moisture regimes that save water and also increase productivity. The objective of this article therefore is to analyze the consequences of switching growing of rice from flooded to aerobic conditions on soil fertility and its management. Fertility advantages of submerged rice include amelioration of chemical fertility, preferential accumulation of organic matter and improved availability of major, secondary and selected micronutrients, which contribute to the long-term maintenance of soil fertility and sustainability of the lowland rice system. However, the fertility problems under aerobic rice are better addressed with the crop as a component of a cropping system because continuous growing of aerobic rice in sequence does not seem sustainable due to complex, site-specific chemical and biological constraints.
 
Publisher Taylor & Francis
 
Date 2012
 
Type Article
PeerReviewed
 
Format application/pdf
application/pdf
 
Language en
en
 
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Identifier http://oar.icrisat.org/5717/1/Soil_fertility_in_flooded_and_non-flooded.pdf
http://oar.icrisat.org/5717/2/KLS%2712_AASS_Flooding.pdf
Sahrawat, K L (2012) Soil fertility in flooded and non-flooded irrigated rice systems. Archives of Agronomy and Soil Science, 58 (4). pp. 423-436. ISSN 0365-0340