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1994•Journal of the Indian Society of Soil ScienceOpen access

Decomposition of Organic Matter in Soils in Relation to Mineralization of Carbon and Nutrient Availability

A.C. Sarmah, Popiha Bordoloi

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Abstract

In an aerobic incubation with different organic matter it was found that the rate of CO2 evolution was highest during the first week of incubation. Farmyard manure showed a steady evolution of CO2 and was found to be the best material for building up of soil organic matter. Mineralization of N was the highest and rapid from Sesbania rostrata foliowed by rice straw and farmyard manure. Rice straw caused N immobilization during the initial period of incubation.

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In an aerobic incubation with different organic matter it was found that the rate of CO2 evolution was highest during the first week of incubation. Farmyard manure showed a steady evolution of CO2 and was found to be the best material for building up of soil organic matter. Mineralization of N was the highest and rapid from Sesbania rostrata foliowed by rice straw and farmyard manure. Rice straw caused N immobilization during the initial period of incubation.

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Available abstract

In an aerobic incubation with different organic matter it was found that the rate of CO2 evolution was highest during the first week of incubation. Farmyard manure showed a steady evolution of CO2 and was found to be the best material for building up of soil organic matter. Mineralization of N was the highest and rapid from Sesbania rostrata foliowed by rice straw and farmyard manure. Rice straw caused N immobilization during the initial period of incubation.

Key concepts: Mineralization (soil science), Organic matter, Incubation, Straw, Sesbania, Total organic carbon, Rice straw, Soil water

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