Pre-Emergence Weed Mapping for Targeted Seed Mitigation
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Solution Overview
Problem
Current weed management techniques, particularly in precision farming, face challenges with herbicide resistance in weeds, leading to inaccurate and excessive herbicide applications, which are costly and harmful to crops.
Innovation Solution
A computer-implemented method that generates a weed map to identify weed seed locations before emergence, using remote sensing data from various sources, and generates control signals for pre-emergence weed mitigation operations, including chemical application or mechanical burial, to effectively target and prevent weed growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If herbicide is applied to the field to mitigate weed growth, then weed growth is controlled, but herbicide resistance in weeds develops and crop damage occurs
Solution Approach 1:
The system performs preliminary detection of weed seeds before they emerge and grow. By using sensors to identify weed seed locations in advance, the system enables targeted pre-emergence herbicide application, controlling weed growth before it becomes a threat to crops and preventing the development of herbicide resistance through excessive application.
Solution Approach 2:
The system transitions from uniform field-wide herbicide application to localized targeted application. By mapping specific weed seed locations and applying herbicide only to those precise areas, the system maintains effective weed control while minimizing unnecessary chemical exposure to crops and reducing overall herbicide usage.
2Reliability
If excessive herbicide is applied to the field, then weed growth is controlled, but cost increases and crop harm increases
Solution Approach 1:
The system extracts and isolates the specific problem areas (weed seed locations) from the entire field. By using detection sensors to identify and map only the areas containing weed seeds, the system enables herbicide application to be restricted to these specific extracted locations rather than treating the entire field, thereby reducing herbicide quantity while maintaining control effectiveness.
Solution Approach 2:
The system performs preliminary detection and mapping of weed seed locations before herbicide application. This advance identification allows for precise calculation and delivery of the minimum necessary herbicide quantity to each weed seed location, preventing both under-application (which would fail to control weeds) and over-application (which would waste chemicals and harm crops).
Data Source
AI summary
A computer-implemented method includes obtaining a weed map of a field including a crop, the weed map representing weed plant locations on the field, identifying, based at least in part on the weed map, weed seed locations that represent presence of weed seeds on the field, and generating a control signal for a pre-emergence weed mitigation operation based on the weed seed locations.