Pyroxasulfone Granular Fertilizer for Weed Control
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Solution Overview
Problem
Current agrochemical fertilizers do not effectively achieve a necessary herbicidal effect while minimizing the amount of herbicide used, posing challenges in worker safety, environmental impact, and economic efficiency.
Innovation Solution
A granular fertilizer containing pyroxasulfone, which is formulated into various dosage forms and incorporated into the fertilizer, allowing for a higher herbicidal effect when applied in smaller amounts, thereby reducing the overall herbicide usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a herbicide is applied in a larger amount to ensure necessary herbicidal effect, then the herbicidal effect is improved, but worker safety deteriorates and environmental impact worsens
Solution Approach 1:
The patent changes the concentration parameter of pyroxasulfone in the granular fertilizer formulation, achieving enhanced herbicidal activity at reduced doses. The specific formulation parameters (granule size, coating composition, active ingredient concentration) are optimized to maximize herbicidal effect while minimizing harmful factors.
Solution Approach 2:
The patent creates a composite granular fertilizer formulation combining pyroxasulfone with fertilizer components and carriers. This composite structure allows the herbicide to be delivered more effectively to target weeds while reducing the total amount of active ingredient needed, thereby improving worker safety and environmental compatibility.
2Measurement precision
If agrochemical and fertilizer are applied separately to ensure proper dosing, then dosing precision is improved, but labor requirements increase
Solution Approach 1:
The patent merges the herbicide and fertilizer into a single granular formulation, allowing simultaneous application of both agrochemical and nutrient components. This eliminates the need for separate application operations, reducing labor requirements while maintaining proper dosing through controlled formulation during manufacturing.
Solution Approach 2:
The granular fertilizer formulation serves multiple functions simultaneously: it provides nutrients to crops and delivers herbicidal activity against weeds. This multi-functional product reduces the number of separate applications needed while ensuring both fertilization and weed control objectives are achieved.
Data Source
AI summary
Disclosed is a technique for achieving a required herbicidal effect using a small amount of a herbicide. Specifically disclosed are: a granular fertilizer containing a herbicidal agrochemical, which is characterized in that the granular fertilizer has been impregnated or coated with pyroxasulfone; and a weed eradication method which is characterized by applying the granular fertilizer to fields.