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Figure 7. The VFRC “cockpit” overview of possible fertilizer interventions alongside production ecological processes that can be categorized into:
1. Fertilizer production (Purple); 2. (Application) Technologies (black); 3. Assessments & diagnostics (brown); 4. Recycling (blue); 5. Plant physiology (green);
6. Soil-plant relations (red); and 7. Plant traits (grey)
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