In the cultivation of crops, especially in rural areas, farmyard manure is generally used more. However, there are still many people who do not know enough about farmyard manure, and there are many farmers who use farmyard manure. Here we have compiled a part of the knowledge about farmyard manure to provide you with a reference.
1. What types of commonly used farmyard manure?
Commonly used farmyard manure sources are very extensive, mainly manure, manure, compost, manure, cake fertilizer, grass ash, lime, etc. These farmyard manures can effectively reduce the cost of agricultural production.
2. Is the nutrient of human excrement high? What is its characteristic?
Human excrement is a mixture of human feces and human urine. It is a kind of farmyard fertilizer that is used in many rural areas in our country. The nutrient content of human excrement is high. The composition is more complicated, and it is greatly affected by food. It is generally neutral. Fresh urine is slightly acidic, but after decomposing, urea decomposes into ammonium carbonate, which is slightly alkaline.
3. Why should human excrement be applied after it has been decomposed?
Human excrement must be fermented and fermented before it can be applied because human feces contain nitrogen and phosphorus, and crops are difficult to directly absorb and use. Therefore, when human excrement is applied after being decomposed, the fertilizer effect can be manifested. In addition, human feces contain pathogens and eggs, which can be killed after fermented and fermented. Fermentation and decomposing can reduce the pathogens in farmyard manure.
4. Which crops are suitable for human excrement and which crops should not be applied?
The decomposed human excrement contains more inorganic nutrients, which can be directly absorbed and utilized by crops and is effective for growing various crops. It is most suitable for leafy vegetables, hemp crops, etc. For tobacco, potato, sweet potato and other chlorine-free crops should not be applied too much.
5. Why should human excrement not be mixed with lime?
After human excrement is decomposed, most of the nitrogen-containing substances are converted into ammonium carbonate, and the main component of the plant ash is potassium carbonate, which is an alkaline substance. When ammonium carbonate encounters alkaline substances, it will decompose to form carbon dioxide and ammonia, and ammonia will volatilize and cause nitrogen loss.
The above is some questions and answers about farmyard manure. If you have doubts, you can take a good look at it, maybe it will help you.
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