Green manure straw soil conditioner and preparation method thereof

By preparing a green manure straw soil conditioner, using pretreated straw powder, green manure mixture, and modified biochar, the problems of single function and insufficient resource utilization of soil conditioners are solved. This achieves the improvement of soil organic matter and crop yield, and is suitable for improving compacted soil, saline-alkali soil, and continuous cropping obstacle soil.

CN122404084APending Publication Date: 2026-07-17JIANGSU UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV
Filing Date
2026-04-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing soil conditioners have limited functions, limited improvement effects, and low nutrient utilization rates. The utilization of straw and green manure resources is insufficient, and long-term application of chemical fertilizers leads to the deterioration of soil physical and chemical properties and environmental pollution.

Method used

The green manure straw soil conditioner is composed of pretreated straw powder, green manure mixture, modified biochar, compound functional microbial agents, amino acid chelated trace elements, biostimulants and plant growth regulators. It is prepared through aerobic fermentation, low temperature drying, crushing and granulation to form an organic biochar base and inoculate it with functional microbial agents, so as to realize resource utilization and soil fertility improvement.

Benefits of technology

It significantly improves soil compaction, increases available phosphorus and potassium, promotes crop growth, increases yield, and enables efficient resource utilization of straw and green manure. It is green and safe and suitable for compacted soil, saline-alkali soil, and soil with continuous cropping obstacles.

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Abstract

本发明提供一种绿肥秸秆土壤改良剂及其制备方法,按重量份计,包括以下组分:预处理秸秆粉38~42份、绿肥混合料22~24份、改性生物炭12~14份、复合功能菌剂4~5份、氨基酸螯合中微量元素3~4份、生物刺激素1.5~2份、植物生长调节剂0.15~0.2份,以及余量的发酵助剂或无菌水,各组分的重量份之和为100份;预处理秸秆粉为秸秆经粉碎、灭菌、除杂、烘干制成;绿肥混合料为紫云英、苜蓿、油菜绿肥按质量比复配而成;改性生物炭为秸秆经限氧热解后经改性液浸渍改性制成;植物生长调节剂由复硝酚钠与萘乙酸钠复配而成。本发明克服现有土壤改良剂功能单一、改良效果有限、养分利用率低的缺陷,能够实现秸秆资源化利用与土壤肥力提升双重目标。
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