In recent years, the gargle arrangement of arboriculture has become more and more compact, but the soil problems that have emerged have gradually attracted the attention of vegetable farmers. As a result, the soil in the sheds has deteriorated year by year, and there have been many phenomena such as the death of vegetables. This has caused serious economic losses to vegetable growers. Therefore, in order to ensure the improvement of the yield and quality of vegetables, it is necessary to strengthen the improvement of the shed soil. Multiple physiological diseases In recent years, vegetable growers preferred to use compound fertilizers. In recent years, large quantities of water-soluble fertilizers were used by vegetable farmers. As time went by, soil salinity accumulated and accumulated more and more, and the secondary salinization became serious. Red and green moss appeared on the soil surface, resulting in Poor growth of vegetables. For example, the "yellow leaves" commonly appear on watermelons (yellow leaves, dents, and embrittlement); the leaves of peppers are "flowered", and many vegetable farmers mistakenly think that mosaic virus has occurred. It is not a virus disease but a problem of soil. Physiological diseases that appear. Multiple measures simultaneously One is to use as little or no chemical fertilizer as possible for vegetable base fertilizers, especially to reduce the use of compound fertilizers. Excessive application of compound fertilizers is the main cause of secondary salinization and acidification of soils, and it also affects the absorption of medium and trace element fertilizers. . The second is the increase of commodity manure manure (including fresh manure and dry chicken manure) due to incomplete decomposition easily lead to the occurrence of burning seedlings phenomenon, and these manure there is still a lot of antibiotics, pollute the soil, it is recommended that farmers buy commodity organic fertilizer, in the purchase It is best to use pure organic fertilizers that do not contain NPK, in order to reduce the application of fertilizers. Applying as much organic fertilizer as possible can increase the content of organic matter in the soil, improve the structure of soil pellets, and increase soil fertility and water retention. The third is to use large-scale rotary cultivators to rotate the large rotary cultivator rotary cultivator large, more than the conventional rotary cultivator turned to the ground, you can break the plow bottom layer, increase the thickness of the tillage layer, promote deep roots, improve vegetable resistance . In addition, during the summer break, vegetable growers are recommended to grow leafy vegetables such as wolfberry, spinach, etc. When they grow to about 10 cm, they will be deeply ploughed into the soil. In addition to providing organic matter, they can also promote a large number of beneficial microorganisms and inhibit the proliferation of pathogens. And promote soil structure improvement. Laryngeal Mask,laryngeal mask airway,pvc laryngeal mask,disposable silicone laryngeal mask Anesthesia Medical Co., Ltd. , https://www.jssinoanesthesia.com