Fertilizer Recommendations Based on NPK Data

📊 Fertilizer Recommendations Based on NPK Data

📈 NPK Interpretation Guide:

Level	Nitrogen	Phosphorus	Potassium	Action
Very Low	< 100	< 20	< 100	Apply high NPK fertilizer
Low	100-150	20-30	100-150	Apply balanced fertilizer
Optimal	150-250	30-60	150-300	Maintenance only
High	> 250	> 60	> 300	Reduce fertilizer

📊 Organic Fertilizer Sources:

Source	N %	P %	K %	Application Rate
Compost	1-2%	0.5-1%	1-2%	5-10 kg/m²
Manure (Cow)	0.6%	0.2%	0.5%	5-8 kg/m²
Chicken Manure	1.5%	1.0%	0.8%	2-3 kg/m²
Bone Meal	3%	15%	0%	1-2 kg/m²
Wood Ash	0%	2%	5%	0.5 kg/m²

📖 Automated Fertilizer Recommendation Code:

void recommendFertilizer(int n, int p, int k) {
    Serial.println("=== FERTILIZER RECOMMENDATION ===");
    
    // Nitrogen recommendation
    if (n < 100) {
        Serial.println("N: VERY LOW - Apply 50kg/ha Urea or 10kg/m² compost");
    } else if (n < 150) {
        Serial.println("N: LOW - Apply 30kg/ha Urea");
    } else if (n > 250) {
        Serial.println("N: HIGH - Reduce nitrogen fertilizer");
    } else {
        Serial.println("N: OPTIMAL - Maintenance only");
    }
    
    // Phosphorus recommendation
    if (p < 20) {
        Serial.println("P: VERY LOW - Apply 200kg/ha Bone meal or 2kg/m²");
    } else if (p < 30) {
        Serial.println("P: LOW - Apply 100kg/ha Bone meal");
    } else if (p > 60) {
        Serial.println("P: HIGH - Reduce phosphorus fertilizer");
    } else {
        Serial.println("P: OPTIMAL - Maintenance only");
    }
    
    // Potassium recommendation
    if (k < 100) {
        Serial.println("K: VERY LOW - Apply 100kg/ha Potash or 1kg/m² wood ash");
    } else if (k < 150) {
        Serial.println("K: LOW - Apply 50kg/ha Potash");
    } else if (k > 300) {
        Serial.println("K: HIGH - Reduce potassium fertilizer");
    } else {
        Serial.println("K: OPTIMAL - Maintenance only");
    }
}

💡 Cost Savings Tip:

Regular NPK testing can reduce fertilizer costs by 30-50% by preventing over-application. A $20 test kit saves $100+ annually!

💡 Key Takeaways:

Apply these concepts directly to your farm or project.
Take notes on important details for the quiz.
Use the button below to track your progress.

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