What are fertilizers?why is it important to add them to soil?differentiate between natural and chemical fertilizers.
Answers
Answer: Fertilizers are chemical substances supplied to the crops to increase their productivity. These are used by the farmers daily to increase the crops yield. The fertilizers contain the essential nutrients required by the plants including nitrogen, potassium, and phosphorus. They enhance the water retention capacity of the soil and also increase its fertility.
OR
A fertilizer is a chemical that helps plants to grow. It is used to replace the mineral salts taken by plants or removed/washed away by rain. Common fertilizers: Ammonia. Manure (Animal waste) which was the first fertilizer.
Uses of Fertilizers
Fertilizers are used for various purposes. The uses of fertilizers are mentioned below:
They are used to provide additional nutrients to the plants.
They are added to improve the yield of the crops.
Nitrogen-rich fertilizers are used for the greening of lawns.
Organic fertilizers improve the texture and fertility of the soil.
Gardeners use fertilizers to address certain needs of the plants such as nutritional needs.
Fertilizers are added to potted plants to replace the lost nutrients.
