Calcium-Based Pest Repellent Composition for Crop Protection
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Solution Overview
Problem
Conventional pest repellents often harm crops and other non-target organisms, failing to effectively repel pests like snails, slugs, moles, and ants while also not promoting plant growth.
Innovation Solution
A composition comprising calcium oxide, calcium hydroxide, and calcium carbonate, applied as a powder, granules, or aqueous solution, is spread on the ground surface to repel pests, with a process involving quicklime reaction and subsequent processing to create a sterilized, steaming semi-finished product that promotes plant growth and repels pests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pest repellents are applied, then pests are repelled, but crops and non-target organisms are harmed
Solution Approach 1:
The patent changes the chemical composition parameters by using calcium oxide (not less than 10% by weight), calcium hydroxide, and calcium carbonate instead of conventional toxic pesticides. This parameter change maintains pest repelling effectiveness while eliminating harm to crops and non-target organisms through the use of food-grade calcium-based materials.
Solution Approach 2:
The patent creates a composite pest repellent composition combining calcium oxide, calcium hydroxide, and calcium carbonate in specific proportions. This composite material achieves synergistic effects where the combination provides both pest repelling properties and plant growth promotion, resolving the contradiction between effectiveness and safety.
2Reliability
If conventional pest repellents are used, then pest populations are reduced, but plant growth is not promoted
Solution Approach 1:
The patent makes the calcium-based composition multi-functional by demonstrating that it simultaneously repels pests and promotes plant growth. The same composition that creates a protective barrier against pests also serves as a fertilizer, providing calcium and other nutrients to crops, thus eliminating the need for separate pest control and fertilization treatments.
Solution Approach 2:
The patent converts the traditionally harmful effect of calcium oxide (quicklime) into a beneficial dual-action product. By carefully controlling the composition and application method, the reactive calcium oxide provides both pest deterrent properties and soil amendment benefits, turning a potentially hazardous material into a beneficial agricultural input that promotes growth while protecting crops.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces pest populations, including snails and slugs, and protects ornamental plants by creating a barrier, while also accelerating and improving crop growth without harming non-target organisms.
Implementation Method 1
a very highly reactive quicklime reagent is added continuously so that the temperature inside the reactor is maintained between 55 and 110° C.
Implementation Method 2
A composition comprising calcium oxide, calcium hydroxide, and calcium carbonate is spread on the ground surface to repel pests
Data Source
AI summary
A means of repelling pests, in particular snails/slugs, moles, ants and mole crickets, which is a composition comprising calcium oxide, calcium hydroxide and calcium carbonate, the calcium oxide accounting for not less than 10% by weight of the composition, and a method of repelling pests using the repellent.