Urea is a neutral quick-acting fertilizer with a chemical formula of CO(NH2)2 and a nitrogen content of up to 46%. ‌‌Urea is a white crystal that is tasteless and odorless, easily soluble in water, ethanol and benzene, and slightly soluble in ether and chloroform. The nitrogen content of urea is the highest among solid nitrogen fertilizers, which makes it a highly efficient nitrogen fertilizer. After application, no harmful substances will remain in the soil, and it has little destructive effect on the soil, so it is widely used. The application methods of urea include as a base fertilizer or topdressing. Urea is decomposed into ammonium carbonate by microbial action in the soil, and ammonium carbonate is easily absorbed by plants, so urea has a rapid fertilizer effect. However, the utilization rate of urea is low, about only 20%-30%, and most of the urea applied to the soil will be lost or volatilized with water. In order to improve the utilization rate of urea, it can be carried out by deep application in advance or foliar spraying. The method of foliar spraying of urea is simple and effective, which can make urea quickly enter the leaves and participate in various metabolic processes of crops, significantly improving the utilization rate of urea.

It promotes lush green foliage, enhances photosynthesis, and boosts crop yields. Common forms include ammonium sulfate, urea, and ammonium nitrate. While effective, excessive use can lead to environmental pollution and soil degradation.

Zinc is the forming element of many enzymes and hormone, and participates in
metabolism of protein, carbohydrate as well as lipid. When lack of zinc, animals
exhibit inappetence, slow growth, thick and disorderly clothing hair, depilation, dry
and chappy skin and unease-cure wound. Adding high dosage zinc in initial feed for
sucking can reduce diarrhea and increase weight.

Physical properties: colorless thin diamond or cubic crystal or white crystalline powder, no smell, taste salty, soluble in water, soluble in glycerol, slightly soluble in ethanol; relative density 1.987, melting point 773 degrees.

Plant growth stimulant,promote root development and stimulate seed germination.

Monopotassium phosphate (KH2PO4) is a water-soluble salt used as a fertilizer, providing plants with phosphorus and potassium. It aids root development and disease resistance, enhancing overall plant health.

MAP is an efficient source of phosphorus.
It facilitates plant uptake of the phosphorus naturally present in the soil. This is due to the ammonium (NH4+) in MAP, which lowers the pH in the root zone and thus enhances phosphorus availability.

In agriculture, ammonium sulfate is widely used as a nitrogen fertilizer, providing essential nitrogen and sulfur nutrients for plant growth.

Diammonium hydrogen phosphate is widely used in agriculture. It is used as a nitrogen and phosphorus fertilizer to supply nitrogen and phosphorus nutrients required by crops, promote plant growth, improve yield and quality. In addition, diammonium hydrogen phosphate can also be used to control phosphorus deficiency in soil, and can improve soil texture and fertility.

Supply plant phosphorus, calcium, sulfur and other elements, with improved alkaline soil effect. Used as a base fertilizer, foliar application, foliar spray. Mixed with nitrogen fertilizer use, there nitrogen fixation, to reduce the loss of nitrogen. Can promote the germination of plants, root length, branching, strong and mature, can be used as raw material for the production of fertilizer.