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N2O is one of the greenhouse gases generated by agricultural activities which is currently highlighted. Amount of N2O is the least amount in the atmosphere, but it has a global warming potential 310 times compared to the global warming potential by CO2, and has a very long half-life time in the atmosphere is about 120-150 years old. Organic fertilization is considered one trigger for N2O emissions, but the other organic materials are needed by the soil as soil-forming material. Intensive research is needed to determine the effect of the organic material to N2O on various aspects including soil type, because Indonesia is rich in soil. Indonesia has 10 of the 12 soil types that exist throughout the world (Soil Taxonomy). This study aims to determine the N2O emissions in different types of soil which were variations of the addition of organic matter. This research was conducted with an experimental method using a completely randomized design.The main observation is the variable potential N2O emissions which analyzed by Soil Incubation method. The results showed variations of provision does not affect the potential of organic materials N2O emissions for 30 days. Soil types of the most releases N2O respectively are Alfisols, then Inseptisols and most minor releases N2O is Andisols.

Potential Emission Of N2O from Various Types of Soil with Organic Material Addition