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Providing evidence to improve practice

Individual study: Soil Organic Carbon Build-up and Dynamics in Rice-Rice Cropping Systems

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


This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Amend the soil with crops grown as green manures Soil Fertility

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).

 

Amend the soil with manures and agricultural composts Soil Fertility

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).