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Vol. 11, Special Issue 10 (2022)

Long term effects of organic amendments on carbon sequestration rate, soil microbial and enzymatic activities in organically managed rice-rice cropping system in inceptisols of Odisha

Author(s):
SK Sahoo, DK Bastia, S Tripathy, J Behera, KC Sahoo, S Tudu and RN Nayak
Abstract:
Soil organic carbon (SOC) plays an important role in sustainability of any agricultural production system as they govern most of the soil properties, and hence soil quality and health. Being a food source for soil microorganisms, they also influence microbial activity, diversity and enzymes activities. The present paper reports the results from a three years (2014-17) field experiment to elucidate the effect of soil amendments (Dhanicha, vermicompost and FYM) on SOC and its sequestration rate (SOCSR) and enzymes activity. Results revealed that combined application of organic amendments comprising Dhanicha @ 25 kg seed ha-1 + FYM @ 5 t ha-1 + Vermicompost 2 t ha-1 (split) in Kharif and FYM @ 5 t ha-1 + Vermicompost 2 t ha-1 (split) in summer significantly improved the SOC stock and sequestration rate. Soil microbial population and enzymatic activities were also better correlated with the SOC stock. Combined application of two or three organic amendments resulted in higher amount of SOC stock and SOCSR over single application, and also had better enzymatic activities and microbial population than single application. Soil enzymatic activity, which is directly related with the SOC stock, is a good indicator of changes induced by various management practices. Relative changes in the SOC stock and soil enzymes activity are more pronounced in the organic paddy soil.
Pages: 244-248  |  247 Views  109 Downloads
How to cite this article:
SK Sahoo, DK Bastia, S Tripathy, J Behera, KC Sahoo, S Tudu and RN Nayak. Long term effects of organic amendments on carbon sequestration rate, soil microbial and enzymatic activities in organically managed rice-rice cropping system in inceptisols of Odisha. The Pharma Innovation Journal. 2022; 11(10S): 244-248.

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