Description
This solution uses camera-equipped spray booms that detect weeds in real time. When weed presence falls below a predefined threshold, the corresponding sprayer sections are automatically turned off, preventing unnecessary herbicide application. The system has primarily been tested in arable crops but is also applicable to field-grown horticultural crops.
Explanation
Norwegian trials have shown that this technology can reduce herbicide use by up to 43% in arable crops. For higher-value crops, the economic case for adoption is even stronger. The system offers a cost-effective and environmentally friendly weed control method, particularly where precision and input savings are critical.
Advantages
• In arable crops, herbicide use can be reduced by up to 43%, and similar savings are likely in field-grown horticultural crops (e.g., carrots).
• No significant socio-economic effects noted.
• No operational change compared to standard spraying. In fact, spraying is faster due to reduced herbicide application.
• Substantial environmental benefits through reduced herbicide use, leading to improved biodiversity and lower pollution risks.
Drawbacks
• Herbicides cannot be mixed with fungicides during application.
• Algorithms may require updates for optimal performance in horticultural crops.
• No socio-economic drawbacks identified.
• Requires ISOBUS connection, which may not be available on older equipment.
• No notable environmental drawbacks identified.
Technical Aspects
Technical readiness
Moderate. The technology is readily available for arable crops, but adaptations are needed for effective use in horticultural crops.
Ease and efficiency of implementation
Implementation is straightforward if technical prerequisites (e.g. ISOBUS compatibility) are met. However, efficiency in horticultural crops is still uncertain and will depend on local conditions, such as weed species and crop types. While individual weeds can be detected, this must be confirmed and calibrated prior to investment.
Need for training and education
No formal training required beyond the manufacturer’s instructions for setup and use.
Need for investments
Initial investment starts at around €50,000. Return on investment depends on herbicide savings and potential yield improvements.
Policy Recommendations
At this stage, demonstration trials and field testing are crucial for evaluating performance under Swedish conditions. Supporting demos and knowledge sharing can build confidence among growers and guide future investment decisions.