Aerial Precision Nutrient & Water Management
Overview
Precision fertigation is an advanced agricultural approach that delivers the exact amount of nutrients and water required by crops with high accuracy. By integrating soil-moisture sensors, crop-health analytics, and variable-rate control, the system identifies zones experiencing nutrient deficiency or water stress. Using drone-based or automated platforms, nutrients and water are applied only to these specific areas instead of uniformly across the entire field. This targeted delivery improves nutrient uptake, prevents over-watering and nutrient runoff, reduces resource wastage, and enhances crop growth. By optimizing the timing, quantity, and placement of inputs, precision fertigation improves yield quality while supporting sustainable and cost-efficient farm management.
Process Flow


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The process begins with Drone-Based Crop Monitoring, where multispectral or hyperspectral sensors scan the field to generate nutrient-status maps. These maps highlight low-nutrient and stressed zones using vegetation indices such as NDVI and NDRE. Once these deficient areas are identified, a Targeted Spraying Drone is deployed to apply nutrients or water only where required. During application, the system dynamically adjusts droplet size and flow rate based on crop requirements, ensuring efficient and uniform nutrient delivery to affected zones. This data-driven approach minimizes wastage, improves crop health, and optimizes overall input usage.
Reference Images


Relevant Outcomes / Deliverables
| Category | Outcome / Deliverable |
|---|---|
| Field Analysis | High-resolution nutrient variability maps identifying low-nutrient zones |
| Crop Health Insights | Detailed NDVI / NDRE vegetation index reports for stress detection |
| Precision Application Plan | Geo-referenced spraying maps for targeted nutrient delivery |
| Nutrient Application | Optimized spraying with dynamic droplet-size adjustment |
| Resource Efficiency | Reduced nutrient wastage and improved fertilizer utilization |
| Performance Report | Before-and-after crop health comparison with measurable improvements |
| Operational Efficiency | Reduced manual effort and faster field coverage |
| Documentation | Final summary report with actionable agronomic recommendations |
Achievable Accuracy
| Parameter | Achievable Accuracy |
|---|---|
| Nutrient Delivery Accuracy | ±5–10% |
| Water Application Accuracy | ±5% |
| Flow Rate Control | ±3% deviation |
| Target Area Coverage | 95% uniformity |
| Reduction in Nutrient Wastage | Up to 30% improvement |
Key Advantages
- Reduced nutrient and water wastage through optimized delivery
- Improved nutrient uptake and crop efficiency
- Significant cost savings on fertilizers and irrigation
- Uniform application across varied terrain and crop zones
- Lower environmental impact with reduced runoff and leaching
- Data-driven insights for improved farm management decisions
- Reduced human error through automated dosing control
- Adaptable for multiple crops, soil types, and growth stages
Compatible Drone Platforms
- Drishti
- Drishti Pro
Supported Sensors / Payloads
- Multispectral camera for NDVI / NDRE analysis
- RGB camera for visual field mapping
- Spraying or dispensing module for corrective application
Industry Segments Benefited
Agriculture & Agritech, Forestry & Environmental Conservation, Environmental & Climate Agencies, Urban Planning & Land Management, Water Resource & Coastal Management, Disaster Management, Insurance & Risk Assessment.

