🌱 Nutrient Calculator
Estimate nitrogen (N), phosphorus (P), potassium (K) requirements for your garden. Get fertilizer blend recommendations and cost estimates for vegetables, fruits, lawn & more.
Step 1: Garden & Crop
🌿 General nutrient guide
Vegetables: 1 lb N / 100 sq ft · Fruits: 0.8 lb N · Flowers: 0.5 lb N · Lawn: 1.5 lb N. Phosphorus & potassium adjusted accordingly.
Step 2: Fertilizer & Amendments
🧪 Secondary materials
Compost adds organic matter (~$0.10/lb). Micronutrient mix adds ~$5 flat cost.
Nutrient & Fertilizer Estimate
Summary
Amendments List
Nutrient Breakdown
Total Estimated Cost
$24.30
~30 lbs fertilizer needed
Nitrogen (N) req.
1.2 lbs
Phosphorus (P) req.
0.6 lbs
Potassium (K) req.
0.6 lbs
Garden Area
120 sq ft
Complete Amendments List
| Material | Quantity | Unit Price | Total Cost | Notes |
|---|
Nutrient Requirements (lbs)
How it’s calculated
N = (area/100) × crop factor · Fertilizer = N ÷ (N% / 100)
Crop factors: Vegetables 1.0, Fruits 0.8, Flowers 0.5, Lawn 1.5, Herbs 0.4. P and K estimated from crop needs. Compost adds 10 lb/100 sq ft.
🌾 Want a precision soil analysis?
Our partner labs offer comprehensive soil testing with tailored nutrient recommendations for your specific crops.
Request Soil Test Kit