In the fertilization of crops, because the effect of chemical fertilizers in crop planting is more obvious, many farmers have abandoned traditional farmyard manure for a long time, and rely on the application of chemical fertilizers. However, the long-term blind use of a large number of chemical fertilizers not only pollutes the environment, but also destroys the organic matter in the soil, causing a series of problems such as soil compaction and acid-base imbalance. So now many people have started the application of organic fertilizers in the farmhouses. However, the current farmyard manure and the previous farmyard manure have long been different. There are still some problems in many farmer's fertilizers now, and the following small series will give you some examples.
First, the hormone is too high
Nowadays, many farmers have made a large amount of hormones in the feed in order to allow the chickens, ducks, cattle, sheep and other poultry to be laid, milk or slaughtered in advance. The manure is applied to the orchard, causing the spread of pests and diseases.
Second, excessive antibiotics
In order to prevent the occurrence of epidemics, some farmers adopt excessive amounts of antibiotics in the feed, and the manure is applied to the orchard, causing the pests and diseases to fail to kill. Therefore, the fruit farmers spray high-efficiency pesticides, which are harmful to the soil and human body.
Third, the salt alkali is intensified
Animal manure, salt is too large, applied to the soil, and the salinity is intensified. Alkaline soil causes the reduction of divalent iron into ferric iron. The ferric iron cannot be absorbed by the roots of fruit trees, and the fruit trees produce a large area of ​​iron deficiency yellow leaf disease.
Fourth, too many eggs
The unfertile farmyard manure carries a large number of eggs, is applied to the soil, bites the tree roots, prevents the nutrient circulation of the fruit trees, and induces root rot disease.
5. Burning roots
Non-fertilized farmyard manure is applied to the soil, and high temperature and high heat are generated in the process of secondary fermentation and decomposing. It is easy to burn, burn roots, burn seedlings, and inhibit root growth and development.
Therefore, everyone must pay attention to these aspects when using farmyard manure. This is not only responsible for the crops they grow, but also for the entire soil environment.
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