Saturation diagnosis and improvement method of mineral-bound organic carbon in dryland farmland of loess plateau
By calculating the saturation deficit of mineral-bound organic carbon in dry farmland on the Loess Plateau and using a coating composite amendment, the problem of insufficient mineral-bound organic carbon reserves in existing technologies has been solved, achieving a highly efficient carbon sequestration effect and an environmentally friendly amendment method.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 定西市农业科学研究院
- Filing Date
- 2026-05-31
- Publication Date
- 2026-07-17
AI Technical Summary
In dryland farmland on the Loess Plateau, existing technologies cannot effectively increase the reserves of mineral-bound organic carbon (MAOC), resulting in a decline in carbon sequestration efficiency. Furthermore, when large amounts of organic fertilizer are applied, carbon resources are wasted in unstable carbon pools, posing environmental risks.
By collecting soil samples from the target farmland and reference areas, calculating the saturation deficit of mineral-bound organic carbon, and using a coated composite amendment with a carbon-nitrogen ratio of 20-30, including well-rotted poultry and livestock manure, high-nitrogen plant-derived adjuvants and soluble low-molecular-weight organic acids, the amendment was applied to the dense root zone of the crop using a rhizosphere targeted strip application method, and dynamic monitoring and adjustment were carried out.
It significantly increased the reserves of mineral-bound organic carbon, improved carbon sequestration efficiency, avoided the waste of carbon resources, reduced environmental risks, and achieved scientific and operable carbon sequestration management.
Smart Images
Figure CN122397409A_ABST