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DAP

DAP

Ammonium dihydrogen phosphate is an inorganic salt that is stable in air and exhibits an acidic reaction. Soluble in water, slightly soluble in ethanol, insoluble in acetone. In fermentation, it is also widely used in the production of baking powder and yeast. It is also a highly efficient fertilizer for vegetables, fruits, rice and wheat.

MKP

MKP

Potassium dihydrogen phosphate is an efficient and fast soluble phosphorus potassium complex fertilizer containing phosphorus and potassium, which is used to provide nutrients needed for plant growth and development. It is suitable for any soil and crops, especially for areas where phosphorus and potassium nutrients are lacking at the same time and phosphophilic crops. Chemicalbook is mostly used for topdressing, seed soaking and seed dressing, with remarkable yield increase effect. If it is used as root fertilization, it can be used as base fertilizer, seed fertilizer or middle and late topdressing. The aqueous solution can react with silver nitrate to produce yellow silver dihydrogen phosphate precipitation, which can be used as a differential reaction.

Urea 46

Urea 46

Urea is an important nitrogen fertilizer of high quality and high efficiency. At the end of the First World War, Germany began to use urea as fertilizer. Practice has proved that urea has a high nitrogen content and no side components, and has shown a good yield increase effect on all crops. After the 1950s, it has become the focus of the development of nitrogen fertilizer varieties, in the 15 years from 1960 to 1975, the global urea production increased by 10.5 times, and from the 1970s gradually replaced ammonium nitrate and became the most applied nitrogen fertilizer varieties in the world. After urea is applied to the soil, a small part is absorbed by plants in the form of amide, most of it is ammoniated under the action of urease, converted into ammonia, and then absorbed by plants, the decomposition rate depends on the soil quality, temperature and water content, generally in 3 to 10 days, so urea fertilizer efficiency is longer than other nitrogen fertilizers, nitrogen loss is also less. Urea is an ideal fertilizer for topdressing outside the root, because it does not contain harmful ingredients to crops, is neutral, does not burn stems and leaves, has strong hygroscopic properties, and is easy to penetrate into the leaves with water and is quickly absorbed by crops.