Recent Progress in Studies of Soil Structure, and its Relation to Properties and Management of Paddy Soils

Conference paper


Soil structure has been defined as “pthe arrangement of the soil particles and of the pore spaces between them (1) It includes the size, shape and arrangement of the aggregates formed when primary particles are clustered together into larger, separable units” The structural organization of the soil particles determines such important properties as water movement and storage in soils, gas exchange between roots and atmosphere, the ease of tillage, the extent to which the soil is explored by plant roots, and erodibility. In relation to paddy rice production, the aspects which are important are those factors related to water movement and root growth Where upland crops are grown in rotation with flooded rice, then the condition of the soil after draining from the flooded state and the ease with which seeds can be drilled, and can emerge and establish their root systems, become of critical importance.


Bulk Density Pore Size Distribution Soil Structure Clay Soil Paddy Soil 
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© Science Press, Beijing and Springer-Verlag Berlin Heidelberg 1981

Authors and Affiliations

  1. 1.The International Rice Research InstituteLos BañosPhilippines

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