We often say that the "fermentation" of farmyard manure is actually the full maturity of farmyard manure. Organic fertilizers commonly used in agricultural production are generally manure, compost, green manure, livestock and poultry manure, and manure. Why can't you put the manure directly into the ground and it will take a while to get rid of it?
Experts say that fresh manure must not be scattered directly into the ground because it contains more uric acid and insoluble urate. If it is used as a base fertilizer, not only the nutrients contained in it are difficult to be absorbed by the crop, but also a large number of pathogenic microorganisms and parasite eggs contained in the manure will pollute the soil, and the heat generated by the fermentation will also damage the roots of the crop. Therefore, when using manure as a fertilizer, it should be used as a base fertilizer after being piled up and decomposed at a high temperature.
At present, the preferred method of decomposing farmyard manure is high temperature tanning. The tanning system mainly allows the organic matter to be fully fermented, requiring composting and covering the film to cause high temperature inside the fertilizer. The high temperature produced by fermentation can kill germs, eggs and weed seeds, and the fertilizer is cooked quickly. However, due to the large amount of soil and slow fermentation, the composting temperature in the composting process is small, the time required for decomposing is longer, and the quality is poor.
Experts advise: the determination of the time of manure should be determined according to the season, taking winter manure as an example, the time should be used until the next spring. The good fertilizers are usually darker in color and some become black or sauce. Some people use the fat smell of the cockroach to define whether it is decomposed. If it is not stinky, it is ripe fat. This is wrong because the re-cooked fertilizer is still smelly. Therefore, it is more realistic to define the time.
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