In recent years, the supply of agricultural products in China has gradually become abundant, but at the same time, the phenomenon of “delicious food, unsweetened fruits, and unsavory fruits†has also appeared from time to time. Some people think that it is due to the use of chemical fertilizers, and it is proposed that organic fertilizers and farmyard fertilizers should be used instead of chemical fertilizers. Some experts believe that this understanding is biased.
The technicians of some large-scale fertilizer plants in Shaanxi Province pointed out that chemical fertilizers are fertilizers that are produced by chemical methods from various mineral resources, air and water as raw materials. Fertilizer can improve and improve the quality of crops. For example, nitrogen is a major component of proteins and nucleic acids, and proteins are the basic substances that make up the plant cell protoplasm. Nitrogen is also a component of chlorophyll. Phosphorus is a component of important organic compounds in plants. Nucleic acids, nuclear proteins, and phospholipids all contain phosphorus. Potassium can increase the content of chlorophyll and promote the assimilation of carbon dioxide and the transport of photosynthetic products. Regardless of people's prejudice against chemical fertilizers, they still cannot leave chemical fertilizers. China, as well as the United States, Israel, and other countries are all major fertilizer users.
People now reflect the phenomenon that “food is odorless, melon is not sweet, and fruit is not fragrantâ€. It is not because of the use of chemical fertilizers. It is related to improper use of chemical fertilizers. Studies have confirmed that unscientific fertilization, unreasonable proportioning, and indiscriminate fertilization are the root causes of the decline in the quality of agricultural products. For example, some farmers excessively use nitrogen fertilizers, causing crops to grow madly and tasteless; some fruits should use potassium sulfate. Compounds, if used potassium chloride compound fertilizer, will increase the acidity, quality decline.
As for the application of organic manures and manures to replace chemical fertilizers, although it is possible to avoid the disadvantages of unreasonable use of chemical fertilizers, it is often difficult to meet the requirements for comprehensive and sufficient nutrients in crops, and the ratio of NPK in organic fertilizers and farm manure varies greatly. Meet the requirements of balanced fertilization. The view that the farmer's fattening must be green food is also biased. For example, vegetable growers drenched manure and other organic fertilizers on the vegetables and soon obtained sales on the market. Although this dish tastes good, it is likely to bring There are bacteria that cannot be washed out.
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Features and benefits of Leo milk cooling tank/ milk cooler :
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