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Which fertiliser, urea or ammonium chloride, tends to sludge the soil and what are the main ingredients of urea?

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Ammonium chloride tends to compact the soil. Crops have selective absorption of ammonium chloride, which will leave more chloride ions in the soil, resulting in excess anions, resulting in the formation of corresponding acid substances, resulting in soil compaction. Ammonium chloride can be used as base fertilizer or top dressing, but not as seed fertilizer. When used as base fertilizer, it should be applied 7-10 days before sowing. When used as top-dressing fertilizer, the sensitive period of seedlings to chlorine should be avoided, and the soil should be deeply applied. It is better not to apply or use ammonium chloride as little as possible in arid areas and saline-alkali soils.


1. Which fertilizer, urea and ammonium chloride, is easy to make soil compact


1. Ammonium chloride is easy to compact the soil. The absorption of ammonium chloride by crops has a certain selectivity, and more chloride ions will remain in the soil, resulting in excess anions, corresponding acid substances, and soil compaction.


2. Ammonium chloride can be used as base fertilizer or top dressing, but not as seed fertilizer. When used as base fertilizer, it must be applied 7-10 days before sowing. When used as top-dressing fertilizer, the sensitive period of seedlings to chlorine must be avoided, and the soil should be deeply applied. Watermelon, muskmelon and other melon and fruit trees belong to chlorine-avoiding crops, and ammonium chloride cannot be applied. Excessive absorption of chloride ions by crops will lead to poor quality of melons and fruits.


3. In areas with little rainfall and saline-alkali soils, ammonium chloride must not be applied or should be used as little as possible. Ammonium chloride is more suitable for application on crops such as rice, flax, and hemp. Other crops, such as wheat, barley, corn, sorghum, etc., have a high tolerance to chloride ions in the soil, and it is safer to control the application rate of ammonium chloride.


Second, what is the main component of urea


1. The composition of urea is carbonamide, which is an organic compound composed of carbon, nitrogen, oxygen, and hydrogen. It is a white crystal. It is one of the simple organic compounds, the main nitrogen-containing end product of protein metabolism and decomposition in mammals and some fishes, and it is also the nitrogen fertilizer with high nitrogen content at present.


2. As a neutral fertilizer, urea is suitable for all kinds of soils and plants. It is easy to store, easy to use, and has little damage to the soil. It is a chemical nitrogen fertilizer that is currently used in large quantities. Ammonia and carbon dioxide are used in industry. Urea can be synthesized under certain conditions.


3. Urea has high nitrogen content, and the effect will be very obvious after application. It can be used as base fertilizer, top dressing, and top dressing outside the roots, and is loved by many farmers.



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