A herbicidal composition containing sodium 2-methyl-4-chloro-6-(ethylamino)-s-triazine, bentazon and silicon fertilizer and a preparation method thereof

By employing a core-shell structured nanogel coating system and glycerol carbonate to inhibit crystallization in the herbicide composition, the problems of herbicide crystallization at low temperatures and runoff due to rainwater are solved, achieving stable compatibility and efficient application of herbicides and silicon fertilizers.

CN122397735APending Publication Date: 2026-07-17HEILONGJIANG PU NONGFENG BIOTECHNOLOGY DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEILONGJIANG PU NONGFENG BIOTECHNOLOGY DEV CO LTD
Filing Date
2026-04-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing herbicide compositions are prone to crystallization and precipitation at low temperatures, and drift and rainwater washout after spraying cause loss of active ingredients. Furthermore, the compatibility between silicon fertilizer and herbicide is unstable, affecting the duration of efficacy and application safety.

Method used

Using potassium polysilicate as the core silicon source material, and combining it with a core-shell structure of quaternized chitosan-catechin polymer and boric acid and phytic acid to form a double cross-linked nanogel coating system, a modified silicon fertilizer dispersion with controllable particle size and stable electrical properties is constructed. Glyceryl carbonate is introduced to inhibit crystallization, forming a stable herbicide composition.

Benefits of technology

It significantly improves the stability, penetration and field persistence of herbicides, ensuring uniform composition and sustained efficacy in complex environments, and enhancing application safety and weed control.

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Abstract

本发明涉及农药组合物技术领域,具体公开了一种复合硅肥增强型除草剂组合物及其制备方法。该组合物由改性硅肥分散体、2‑甲‑4‑氯钠、灭草松、润湿分散剂、保湿剂、助溶剂、增稠剂与pH调节剂组成,其中改性硅肥由聚硅酸钾与季铵化壳聚糖‑儿茶酚基聚合物络合后引入硼酸和植酸进行交联制备。本发明通过引入具有多元络合与交联结构的功能性改性硅肥,提升除草剂分散稳定性、缓释性与除草协同效果。该组合物粒径约为180纳米,Zeta电位为正28mV,界面张力为23.7mN / m,72小时内活性成分缓释效率高,除草抑制指数达到0.91,表现出优异的理化稳定性与田间应用效果。
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