一种融合秸秆还田与有机物料添加的土壤培肥优化方法
By constructing a dynamic time-dislocation and spatial synergistic compensation model for carbon and nitrogen release rates, the soil fertility ratio was optimized, solving the problems of microbial nitrogen competition and the influence of the topsoil environment in existing technologies. This enabled dynamic optimization of straw return and organic material application schemes, improving the accuracy and stability of nutrient supply during crop growth.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JILIN ACAD OF AGRI SCI
- Filing Date
- 2026-05-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for soil fertility improvement and formulation fail to effectively identify early available nitrogen deficits and inaccurate application rates caused by microbial competition for nitrogen during straw return and organic material addition. Furthermore, they fail to consider the impact of the microenvironment of the topsoil space on the degradation rate, resulting in poor early crop growth.
By collecting and processing data on the release kinetic parameters of straw and organic materials and the physical characteristics of the microenvironment in the tillage layer, a model for the time-dislocation characteristics and spatial synergistic compensation of carbon and nitrogen release rate kinetics is constructed. The carbon and nitrogen kinetic dislocation penalty factor and the microenvironment synergistic compensation factor are obtained, and nonlinear bounded coupling correction is performed to optimize the dynamic effective nitrogen supply.
It improves the accuracy and stability of straw and organic material application schemes, avoids insufficient effective nitrogen in the seedling stage, reduces agricultural production costs and risks caused by nitrogen redundancy, and improves the adaptability of crop nutrient requirements during the growth period.
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Figure CN122222337B_ABST