Types Of Plant Fertilizers Chemical Composition Their Respective Uses

Plant fertilizers are mainly divided into chemical fertilizers and farmyard fertilizers.

Chemical fertilizers are divided into: nitrogen fertilizers, phosphorus fertilizers, potassium fertilizers, compound fertilizers, trace elements, etc.

Nitrogen fertilizer]

Nitrogen fertilizer contains the chemical fertilizer of crop nutrient element nitrogen. Elemental nitrogen plays a very important role in crop growth, as it is a component of amino acids in plants, a component of protein, and a component of chlorophyll, which plays a decisive role in photosynthesis in plants. Nitrogen also helps crops to proliferate, and the application of nitrogen fertilizers not only improves the yield of agricultural products, but also improves their quality.

The main ones are.

1, ammonium nitrogen fertilizer: including ammonium bicarbonate NH4HCO3, ammonium sulfate (NH4) 2SO4, ammonium chloride NH4Cl, ammonia NH3.H2O, liquid ammonia NH3, etc.

2, nitrate nitrogen fertilizer: including sodium nitrate NaNO3, calcium nitrate Ca(NO3)2, ammonium nitrate NH4NO3, etc..

3, ammonium nitrate nitrogen fertilizer including ammonium nitrate, calcium ammonium nitrate, ammonium sulfate.

4, amide state nitrogen fertilizer - urea CO(NH2)2, containing N46. 7%, is the highest nitrogen in solid nitrogen fertilizer.

[Phosphorus fertilizer].

Phosphorus fertilizer, can increase crop yields, improve crop quality, accelerate cereal crops tillering and promote the fullness of the seeds; to promote cotton, melons, eggplant vegetables and fruit trees flowering and fruiting, improve the fruit rate; increase sugar in sugar beets, sugar cane, watermelon, etc.; oil content of rapeseed.

Mainly calcium superphosphate, calcium-magnesium phosphate fertilizer, monoammonium phosphate and diammonium phosphate

Potash fertilizer

Potash fertilizer is known as potash fertilizer, fertilizer with potassium as the main nutrient. Potassium in the plant body generally accounts for 0.2% to 4.1% of the dry matter weight, second only to nitrogen. In the process of plant growth and development, potassium is involved in the activation of more than 60 enzyme systems, photosynthesis, transport of assimilated products, carbohydrate metabolism and protein synthesis.

The main potassium fertilizer varieties are potassium chloride, potassium sulfate, potassium dihydrogen phosphate, potassium rock salt, potassium magnesium salt, halloysite, potassium nitrate, kiln ash potash.

Compound Fertilizer】

Compound fertilizer is made by chemical method or (and) mixed method containing any two or three of the crop nutrients nitrogen, phosphorus and potassium. There are also special compound fertilizers produced according to the elements of crop growth needs.