Research Article
Study the Nutrient Management Practices and Soil Organic Carbon in Rice Fields, Radhi, Trashigang Bhutan
Author(s): Karma Yangzom* and Samten Choden
Soil orgnic carbon (SOC) one of the main components of soil organic matter (SOM), acts as a
sink for carbon sequestration. It has been well documented that the rice cropping system and
organic amendments could enhance SOC stocks. However, the capacity of rice fields to enhance
SOC in Bhutan has not been well explored yet. The objective of this study was to understand the
nutrient management practices in rice fields and analyse relationship between rice yield, SOC
and nutrients (NPK). Soil samples from 23 households were collected and land owners were interviewed mainly focusing on rice yield and nutrient management practices. The mean rice yield
in the year 2019 was 7.86 MT. The SOC ranged from 0.3% to 2.9%. The nutrients (NPK) in the soil
ranged from very low (vL) to medium (M). The results showed no significant correlation between
SOC and rice yield b.. View More»