A5027937483- Soil Carbon and Nitrogen Dynamics
- Rice Cultivation and Yield Improvement
- Clay minerals and soil interactions
- Pesticide and Herbicide Environmental Studies
Khon Kaen University
2021-2023
Cellulose-rich rice straw (RS) decomposes readily in soils, with much of C lost as CO2 and only a small fraction stabilized soil organic carbon (SOC). Additionally, the addition high-energy containing residues may stimulate native SOC decomposition (priming effect, PE) high C/N ratio RS lead to N-mining. We hypothesized that mixing high-C/N low-C/N groundnut stover (GN) would improve chemical composition input, thereby stimulating microbial growth hence increasing retention residue-derived...
Rice straw is an abundant resource, but its use as a sandy soil amendment does not increase organic matter (SOM) accumulation. Our study aimed to determine the altered decomposition processes that result from mixing rice (RS) (low N, high cellulose) with groundnut stover (GN) (high N) relative applying these residues singly identify mechanisms underlying of mixed residues. A microcosm experiment using litter bag technique showed synergistic, nonadditive effects (observed < predicted...