32-0-4 Fertilizer
Lawn fertilizer (N + K)32-0-4 is 32% nitrogen, 0% phosphate and 4% 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 32-0-4 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)
4%
2 lb per bag
Stress, drought and cold tolerance
Pounds shown are per 50-lb bag. The N:P:K ratio simplifies to 8:0:1. The remainder of the bag is carrier, filler, and secondary nutrients.
How Much 32-0-4 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 | 0.25-0-0.03 |
| 0.5 lb N | 1.56 lb | 68.1 lb | 32,000 sq ft | 0.5-0-0.06 |
| 0.75 lb N | 2.34 lb | 102 lb | 21,333 sq ft | 0.75-0-0.09 |
| 1 lb N | 3.13 lb | 136 lb | 16,000 sq ft | 1-0-0.13 |
What It's For
A classic big-box lawn food analysis: lots of nitrogen, no phosphorus, a little potassium. Built for regular feedings of established lawns.
When to Use It
Spring and fall feedings, roughly 6–8 weeks apart. On cool-season grass, lean on fall and go light in late spring.
Before You Spread It
- Check how much of the nitrogen is slow-release. The higher it is, the more forgiving the product is in warm weather.
- The 4% potash is minor. If a soil test shows low potassium, it won't fix it on its own.
32-0-4 Products in Our Catalog
32-0-4 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 0.13 lb K₂O per 1,000 sq ft. Never exceed the label rate.
Common Questions
How much 32-0-4 per 1,000 sq ft?
To deliver 1 lb of nitrogen per 1,000 sq ft, apply 3.13 lbs of 32-0-4 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 32-0-4 fertilizer used for?
A classic big-box lawn food analysis: lots of nitrogen, no phosphorus, a little potassium. Built for regular feedings of established lawns.
When should I apply 32-0-4?
Spring and fall feedings, roughly 6–8 weeks apart. On cool-season grass, lean on fall and go light in late spring.
What do the numbers 32-0-4 mean?
They're the percentages by weight of nitrogen (N), phosphate (P₂O₅) and potash (K₂O). A 50-lb bag of 32-0-4 contains 16 lbs of nitrogen, 0 lbs of phosphate and 2 lbs of potash; the rest is carrier and other ingredients.
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