Fertilizer
From Wikipedia, a free encyclopedia written in simple English for easy reading.
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 you buy fertilizer, the percentage of N, P, and K in it is 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 you how much N, P, and K you need.
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