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Fertilizers are artificial manures. They are manufactured chemicals which supply nutrients into the soil to be absorbed by the plants through roots.
They are classified according to the nutrients they supply supply as follows:
• Straight fertilizers
• Compound fertilizers
a) Straight fertilizer Straight fertilizers contain only one macronutrient which may be nitrogen, phosphorous, or potassium. Note that the fertilizers is named according to the nutrient it contains.
Examples of Straight Fertilizers
1. Nitrogen fertilizers - Nitrogen nutrients.
2. Potassium fertilizers - Potassium nutrients.
3. Phosphoric fertilizers - Phosphorus nutrients.
b) Compound fertilizers Compound fertilizers contain two or three macronutrients. They are also called mixed fertilizers.
raphael answered the question on October 9, 2018 at 04:52
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