The old vegetable greenhouse soil is prone to acidification and other problems. What should the vegetable growers do? The greenhouse cultivation brings good economic benefits to the farmers, but because the soil in the greenhouse cannot be upgraded and changed, the vegetable greenhouse soil used in the year has a series of problems. It seriously affects the quality and yield of vegetables. So why do old vegetable greenhouses have soil problems, and how do vegetable farmers repair them?
1. Why do old vegetable greenhouses have soil problems?
1. In the process of vegetable planting, the use of chemical fertilizers is too much, the accumulation of harmful substances is large, and the soil pollution is serious. In addition, some farmers use the organic fertilizer before they are added without harmless treatment, so that there are a large number of pathogens inside. The growth of the vegetable crops in the soil has caused disease, reduced quality and yield, so soil problems are frequently caused.
2. Long-term use of a single chemical fertilizer makes the soil acidified.
3. The pesticide is not used in the right way. If the concentration is too high, or the purchased pesticide is unqualified, it will bring a lot of residue in the soil, which will cause the soil to be affected.
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4. The method of watering the farmers is unreasonable. If the water is used for domestic watering, the soil structure is destroyed.
5, some farmers use the film is relatively inferior, easy to break and powder, resulting in left in the soil.
Second, the problem soil repair
1. Before the farmers apply fertilization, they should abandon the traditional blind fertilization method. It is best to test the soil for fertility. After accurate testing, fertilization is carried out.
2. In the process of planting vegetables, what kind of fertilizer is needed at each stage of the vegetable, what kind of fertilizer is given to it, so that not only can the vegetable grow better, but also the cost of fertilization can be saved and the fertilizer utilization can be improved. rate.
3. The use of biological fertilizer in the vegetable planting process can improve the soil structure and help soil fertility management.
4. Use low drip irrigation when watering to reduce damage to the soil.
5. Farmers should choose the appropriate fertilization method and purchase qualified mulch products. Usually, some straw and humic acid can be supplemented to improve soil structure and reduce the pollution of heavy metals.
6. Conditional construction of underground drip irrigation systems in greenhouses can effectively improve soil problems.
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