Soil physical and hydraulic properties in a rice-wheat cropping system in India: effects of rice-straw management

The effects of rice-straw management (incorporation, burning or removal) on soil organic carbon content and physical and hydraulic properties were determined after five years of rice-wheat cropping in a sandy loam soil in northwest India. Soil organic carbon content was greater with straw incorporat...

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Bibliographic Details
Published in:Soil use and management 2005-03, Vol.21 (1), p.17-21
Main Authors: Singh, G, Jalota, S.K, Sidhu, B.S
Format: Article
Language:English
Subjects:
aggregate stability
Agronomy. Soil science and plant productions
Biological and medical sciences
bulk density
burning
carbon
crop production
crop residue management
crop rotation
Cropping systems. Cultivation. Soil tillage
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
Generalities. Cropping systems and patterns
infiltration (hydrology)
Oryza sativa
Other nutrients. Amendments. Solid and liquid wastes. Sludges and slurries
rice
rice straw
rice straw incorporation
rice straw removal
sandy loam soils
soil aggregates
soil organic carbon
soil organic matter
soil pore system
soil water retention
Soil-plant relationships. Soil fertility. Fertilization. Amendments
Triticum aestivum
water repellent soils
wheat
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Summary:The effects of rice-straw management (incorporation, burning or removal) on soil organic carbon content and physical and hydraulic properties were determined after five years of rice-wheat cropping in a sandy loam soil in northwest India. Soil organic carbon content was greater with straw incorporation and straw burning than with straw removal, and aggregation status, total porosity, pore-size distribution, bulk density, dispersion ratio and soil strength were correspondingly improved. The treatment effects were confined mainly to the 0-5 cm depth. Water retention was less with straw burning than straw removal, owing to increased water repellency of the soil surfaces. Cumulative infiltration and its rate after five hours were greater with straw incorporation than straw burning or removal. Air entry values were unaffected by straw management; however, the values were greater after rice harvest than after wheat harvest.
ISSN:0266-0032
1475-2743
DOI:10.1079/SUM2004285