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| import sqlite3 | |
| class FertilizerOptimizer: | |
| def __init__(self, db_path="database/sustainable_farming.db"): | |
| self.db_path = db_path | |
| def calculate_fertilizer(self, land_size, soil_type, crop_type): | |
| """Calculate optimal fertilizer amounts with sustainability adjustments.""" | |
| # Base fertilizer needs (kg/ha) - adjust based on research or data | |
| fertilizer_needs = { | |
| "nitrogen": { | |
| "loamy": {"wheat": 60, "corn": 80, "rice": 70, "soybeans": 30, "tomatoes": 50, "carrots": 40}, | |
| "sandy": {"wheat": 70, "corn": 90, "rice": 80, "soybeans": 35, "tomatoes": 60, "carrots": 45}, | |
| "clay": {"wheat": 50, "corn": 70, "rice": 60, "soybeans": 25, "tomatoes": 40, "carrots": 35} | |
| }, | |
| "phosphorus": { | |
| "loamy": {"wheat": 30, "corn": 40, "rice": 35, "soybeans": 15, "tomatoes": 30, "carrots": 25}, | |
| "sandy": {"wheat": 35, "corn": 45, "rice": 40, "soybeans": 20, "tomatoes": 35, "carrots": 30}, | |
| "clay": {"wheat": 25, "corn": 35, "rice": 30, "soybeans": 10, "tomatoes": 25, "carrots": 20} | |
| }, | |
| "potassium": { | |
| "loamy": {"wheat": 50, "corn": 60, "rice": 55, "soybeans": 20, "tomatoes": 50, "carrots": 40}, | |
| "sandy": {"wheat": 55, "corn": 65, "rice": 60, "soybeans": 25, "tomatoes": 55, "carrots": 45}, | |
| "clay": {"wheat": 45, "corn": 55, "rice": 50, "soybeans": 15, "tomatoes": 45, "carrots": 35} | |
| } | |
| } | |
| crop = crop_type.lower() | |
| soil = soil_type.lower() | |
| sustainability_factor = 0.85 # Reduce by 15% for sustainability | |
| nitrogen = fertilizer_needs["nitrogen"].get(soil, {}).get(crop, 50) * land_size * sustainability_factor | |
| phosphorus = fertilizer_needs["phosphorus"].get(soil, {}).get(crop, 30) * land_size * sustainability_factor | |
| potassium = fertilizer_needs["potassium"].get(soil, {}).get(crop, 50) * land_size * sustainability_factor | |
| return { | |
| "nitrogen_kg": round(nitrogen, 2), | |
| "phosphorus_kg": round(phosphorus, 2), | |
| "potassium_kg": round(potassium, 2) | |
| } |