Fertilizers and Nutrients

Hitoshi Nakaishi and James E. Lessenger

Key words: ammonia, nitrogen, phosphorus, potassium, micronutrients

A fertilizer is any substance used to make soil more fertile. Plants need large amounts of three nutrients, commonly referred to as macronutrients:

1. Nitrogen

2. Phosphorus

3. Potassium

Fertilizer manufacturers extract these three nutrients from natural sources and convert them into soluble forms that plants can easily use.

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