32-0-10 Fertilizer
Lawn fertilizer (N + K)32-0-10 is 32% nitrogen, 0% phosphate and 10% potash by weight. To apply 1 lb of nitrogen per 1,000 sq ft, spread 3.13 lbs of product per 1,000 sq ft; a 50-lb bag covers about 16,000 sq ft at that rate.
What 32-0-10 Means
Nitrogen (N)
32%
16 lb per bag
Green color and growth
Phosphate (P₂O₅)
0%
0 lb per bag
Root growth, new seedlings
Potash (K₂O)
10%
5 lb per bag
Stress, drought and cold tolerance
Pounds shown are per 50-lb bag. The N:P:K ratio simplifies to 16:0:5. The remainder of the bag is carrier, filler, and secondary nutrients.
How Much 32-0-10 to Apply
Lawn feeding is measured in pounds of nutrient per 1,000 sq ft. Here's how much product hits each common target.
| Target | Product / 1,000 sq ft | Per acre | 50-lb bag covers | Delivers (N-P-K lb) |
|---|---|---|---|---|
| 0.25 lb N | 0.78 lb | 34 lb | 64,000 sq ft | 0.25-0-0.08 |
| 0.5 lb N | 1.56 lb | 68.1 lb | 32,000 sq ft | 0.5-0-0.16 |
| 0.75 lb N | 2.34 lb | 102 lb | 21,333 sq ft | 0.75-0-0.23 |
| 1 lb N | 3.13 lb | 136 lb | 16,000 sq ft | 1-0-0.31 |
What It's For
A high-nitrogen fertilizer with meaningful potassium, the profile most "winterizer" and fall lawn foods use. The potash supports cold and stress tolerance going into winter.
When to Use It
Fall: the September–November feedings that do the most for cool-season lawns. Also fine in spring.
Before You Spread It
- Don't push late fall nitrogen on warm-season grass heading into dormancy.
- Phosphorus and potassium needs vary a lot from lawn to lawn. A soil test tells you whether you need them at all.
32-0-10 Calculator
Enter your lawn size to get the total amount, or change the analysis to check a different bag.
Spread 3.13 lb per 1,000 sq ft, 15.63 lb for 5,000 sq ft (0.31 bags).
Delivers 1 lb N, 0 lb P₂O₅ and 0.31 lb K₂O per 1,000 sq ft. Never exceed the label rate.
Common Questions
How much 32-0-10 per 1,000 sq ft?
To deliver 1 lb of nitrogen per 1,000 sq ft, apply 3.13 lbs of 32-0-10 per 1,000 sq ft, or about 136 lbs per acre. Many applications use half that or less, and the product label rate always comes first.
What is 32-0-10 fertilizer used for?
A high-nitrogen fertilizer with meaningful potassium, the profile most "winterizer" and fall lawn foods use. The potash supports cold and stress tolerance going into winter.
When should I apply 32-0-10?
Fall: the September–November feedings that do the most for cool-season lawns. Also fine in spring.
What do the numbers 32-0-10 mean?
They're the percentages by weight of nitrogen (N), phosphate (P₂O₅) and potash (K₂O). A 50-lb bag of 32-0-10 contains 16 lbs of nitrogen, 0 lbs of phosphate and 5 lbs of potash; the rest is carrier and other ingredients.
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