Chemical Fertilizers and their Usage

A fertilizer is a natural or artificial, chemical-based substance that is applied to improve plant growth and fertility of the soil. Fertilizers may also improve water holding capacity and distil any excess liquid, hence improving soil productivity. Fertilizers typically offer the three main macronutrients, potassium (K), phosphorus (P), and nitrogen (N). Fertilizers may further add secondary nutrients such as sulfur (S), magnesium (mg), and calcium (Ca) to the soil or growing media.
NPK, DAP, ANP, Urea

How many types of Chemical fertilizers ?

Synthetic fertilizer mainly divided into two types;
Macronutrients:
Macronutrients usually called NPK, refer Nitrogen, Phosphorus and Potassium. NPK fertilizer is complex manure comprised mainly of the three primary nutrients needed for plant growth. The agriculture industry relies heavily on the use of NPK fertilizer to sustain the world food supply and sound healthy crops.

Is chemical fertilizers alternative to organic fertilizers ?

Each element has its separate property to improve the health and appearance of plants. 

For example,

Nitrogen( N) helps to make the leaves grow.
Phosphorus (P) improves fruit /flower production as well as root growth.

Potassium (K) is excellent for overall plant health.


Micronutrients:
Micronutrients are nutrients that are needed by the plants in minor amounts, for plant growth. They perform a significant role in the metabolic activities of the plant.Manganese (Mn), Copper (Cu), Boron (B), Zinc (Zn), Molybdenum (Mo), Iron (Fe), Chlorine (Cl) are essential micronutrients for plants. Reduction of specific nutrients affects plant growth.

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