Chemical fertilizers:
Currently, chemical fertilizers (so-called black manure and white manure) play a role in providing about 40 to 60% of the world’s food resources. Chemical fertilizers contain one or more food sources required by plants, which can exist in all three forms: solid liquid or gas phases. These compounds can be added to the soil, sprayed directly on the plant itself (plant leaves) or dissolved in water and added to the plant soil. The use of these materials is used to improve soil quality, increase crop yield or improve the quality of the product.
Nitrogen or nitrogen fertilizers or so-called white fertilizers
Some of the nitrogen fertilizers are:
- Urea fertilizer
- Ammonium sulfate
- Calcium Nitrate
Ammonium sulfate
Ammonium sulfate with chemical formula (NH4) 2SO4 is one of the first and most widely used nitrogen fertilizers for crop production. The high solubility of this fertilizer makes it usable for various applications in agriculture. Given that ammonium sulfate contains 21% nitrogen and 24% sulfur, this fertilizer provides an excellent source of sulfur for plants, which performs several vital functions in plants, including protein synthesis.
