Fertilizer
From the Simple English Wikipedia, the free encyclopedia that anyone can change
A fertilizer is a chemical that helps plants to grow. It is used to replace the mineral salts taken by plants or removed by rain.
Manure was the first fertilizer.
Common fertilizers:
The important things in fertilizer are:
- Nitrogen (N)
- Phosphorus (P)
- Potash (K)
When fertilizer is for sale, the percentage of N, P, and K in it may be written on the bag or box, like this:
- 9-23-30
That means 9% N, 23% P, and 30% K.
Leafy plants need lots of N. Flowering plants need lots of P and K.
A soil test can tell how much N, P, and K is needed.
