The similarities between large and small granular urea are that their active ingredients are water-soluble fast-acting nitrogen molecules, and the nitrogen content is 46%. The difference lies in the fact that the dissolution rate of large-particle urea is slightly slower and is suitable for basal fertilizers. It is not suitable for top dressing and red fertilization. Small urea is suitable for all kinds of soils and all kinds of crops. It is nitrogen-rich nitrogen fertilizer and can be used as base fertilizer and top dressing. When small urea is used as top dressing, it is best to apply or apply acupuncture, so try not to spread. If it is impossible to apply or apply acupuncture, it is best to sprinkle it when the soil is wet before and after light rain. When returning green manure, the amount should not be too much, and it is necessary to give enough time for manure and panicle fertilizer. As a top-dressing fertilizer, it also has a certain effect on production. Small particles of urea should be suitable for foliar fertilization, its concentration is generally 0.5% to 2%.
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Vitamin is a kind of trace organic substance that people and animals must obtain from food in order to maintain normal physiological functions. It plays an important role in human growth, metabolism and development. Vitamins in the body neither participate in the formation of human cells, nor provide energy for the human body.
Amino acids are organic compounds containing basic amino and acid carboxyl groups. A compound formed when the hydrogen atom on the carbon atom of a carboxylic acid is replaced by an amino group.
The following are the main recommended vitamin and Amino Acid raw materials.
Vitamin, amino acid, vitamin B1, vitamin B2, hydroxy acid, glutamine
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