一种用于滨海低洼地土壤改良的林木废弃物生物炭基肥
By applying forest waste biochar-based fertilizer in layers, and utilizing the physical properties and functional loads of leaf char, bark char, and branch char, the problem of soil salinization in low-lying coastal areas was solved, achieving long-term salt control and soil structure improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 上海市林业总站(上海市林业病虫防治检疫站上海市野生动植物保护事务中心)
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-17
AI Technical Summary
The soil in low-lying coastal areas is characterized by high salt content, high pH value, poor structure, poor aeration, and low organic matter content due to salinization. Traditional improvement methods are costly, short-lived, or prone to causing secondary pollution, making them difficult to promote on a large scale.
Using forest waste biochar-based fertilizer, by applying leaf biochar, bark biochar, and branch biochar in layers, loaded with Pseudomonas malodorosa and montmorillonite, biochar with different physical properties is prepared and applied to the top, middle and bottom layers of the soil, forming a salt control mechanism of "top layer interception - middle layer adsorption - bottom layer retention", which improves soil structure and salt fixation.
It effectively improves the physical structure and salt distribution of coastal saline-alkali land, provides long-term salt control, reduces the number of fertilizations, lowers operation and maintenance costs, reduces the risk of groundwater pollution, and meets the requirements of green and low-carbon agriculture.
Smart Images
Figure CN121107919B_ABST