Dry Powder Seed Coating Using Organic Carrier for Pathogen Control
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Solution Overview
Problem
Conventional seed coating methods using chemical pesticides are inefficient, leading to uneven application, reduced viability of biological agents, and environmental concerns due to high chemical use, while biological agents applied with inorganic carriers often lose viability during drying and cause seed coat weaknesses.
Innovation Solution
A dry powder coating composition using an organic carrier material, such as waxes with a melting point of ≥50°C, combined with biological agents, applied in a dry particulate form to oilseed seeds to enhance viability and adhesion, reducing chemical usage and environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional liquid or wet slurry seed treatments are used, then direct protection against pathogens is provided, but the seeds are not fully coated uniformly and the coating may flake off
Solution Approach 1:
The invention changes the physical state parameter of the coating composition from liquid/wet slurry to dry powder form. This parameter change enables uniform dry powder coating application that adheres better to seeds without flaking, resolving the contradiction between protection reliability and coating uniformity.
2Ease of operation
If inorganic carriers are used with biological agents, then application is simplified, but the biological agents rapidly lose viability during drying
Solution Approach 1:
The invention introduces an organic carrier material as an intermediary between the biological agent and the environment. This organic carrier provides a protective micro-environment that maintains biological agent viability during storage and application, unlike inorganic carriers that cause rapid viability loss during drying.
Solution Approach 2:
The invention changes the carrier material parameter from inorganic to organic, which fundamentally alters the micro-environment properties. The organic carrier maintains conditions suitable for biological agent survival, preventing the viability loss that occurs with inorganic carriers during the drying process.
3Reliability
If high levels of chemical pesticides are used, then direct protection against pathogens is achieved, but chemical load to the environment increases
Solution Approach 1:
The invention converts the previously harmful chemical pesticides into beneficial biological agents. By using live biological agents that naturally control pathogens, the system eliminates environmental chemical pollution while maintaining or improving pathogen protection effectiveness.
Solution Approach 2:
The invention changes the active ingredient parameter from chemical pesticides to biological agents. This fundamental parameter change transforms the nature of the protective agent, eliminating the harmful environmental chemical load while maintaining reliable pathogen protection through biological mechanisms.
4Ease of operation
If biological agents are applied as slurry, then application is straightforward, but uneven coating occurs and up to 20% of seeds remain uncoated
Solution Approach 1:
The invention changes the physical state parameter of the coating composition from liquid slurry to dry powder. This parameter change enables complete and uniform coverage of all seeds, eliminating the uneven coating and uncoated seeds problem associated with liquid slurry applications.
Data Source
Figure 1
AI summary
Coating composition for an oilseed plant seed from which roots and shoots are capable of growing, wherein the coating composition comprises an organic carrier material and one or more biological agents that possess an activity against at least one or more pathogens of the oilseed plant.