Soil organic carbon build-up and dynamics in rice-rice cropping systems
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Published source details
Ramesh K. & Chandrasekaran B. (2004) Soil organic carbon build-up and dynamics in rice-rice cropping systems. Journal of Agronomy and Crop Science, 190, 21-27.
Published source details Ramesh K. & Chandrasekaran B. (2004) Soil organic carbon build-up and dynamics in rice-rice cropping systems. Journal of Agronomy and Crop Science, 190, 21-27.
Actions
This study is summarised as evidence for the following.
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Amend the soil with crops grown as green manures Action Link |
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Amend the soil with manures and agricultural composts Action Link |
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Amend the soil with crops grown as green manures
A controlled, randomized, replicated experiment in 2000-2002 on clay loam in India (Ramesh & Chandrasekaran 2004) found 10.6% higher soil organic carbon when sesbania Sesbania rostrata was included in cropping, compared to continuous rice Oryza sativa. There were five combinations of rice and sesbania consisting of: fallow-rice-rice, sesbania-rice-rice, sesbania-rice-sesbania-rice, sesbania-rice-rice-sesbania, and sesbania-rice-sesbania-rice-sesbania. Each combination was divided into four manure treatments: control (none applied), farm yard manure (12.5 t/ha), poultry manure (5 t/ha), and dual cropping with fern Azolla hybrid. There were three replication of each crop combination. Plot size was not specified. Soils were sampled after each rice harvest (depth not specified).
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Amend the soil with manures and agricultural composts
A controlled, randomized, replicated experiment in 2000-2002 on clay loam in India (Ramesh and Chandrasekaran 2004) found 4% higher soil organic carbon under poultry manure (6.6 g C/kg) compared to unmanured plots (6.4 g C/kg). Soil organic carbon under dual cropping (6.4 g C/kg) and farmyard manure (6.4 g C/kg) were comparable to unmanured plots. There were five combinations of rice and sesbania consisting of: fallow-rice-rice, sesbania-rice-rice, sesbania-rice-sesbania-rice, sesbania-rice-rice-sesbania, and sesbania-rice-sesbania-rice-sesbania. Each combination was divided into four manure treatments: control (none applied), farm yard manure (12.5 t/ha), poultry manure (5 t/ha), and dual cropping with fern Azolla hybrid. There were three replications of each crop combination. Plot size was not specified. Soils were sampled after each rice harvest (depth not specified).
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