In June, many high-temperature sheds began to enter the shed period. The time between June and August is about the best time for the shed treatment. The effective treatment of the shed can not only quickly repair the soil structure, but also effectively Kill pathogens in the soil and root-knot nematodes to create the best soil environment for the growth of the sorghum vegetables. High temperature stagnation Principle: The nematode lethal temperature is 55 ° C, and it is dead at 55 ° C for 10 minutes. Process and operation: In this case, we remind everyone to advocate soil testing and fertilization, use biotechnology to improve the soil environment, restore soil ecosystems, thereby reducing soil-borne diseases, reducing pesticide use, reducing input costs, and increasing vegetable yield and quality. For the current tomato dead tree problem and other nematode problems, there are the following methods for your reference. Biological shack 1. After the vegetables are pulled, the shed is sealed and dry for 7 days. 2. Determine the amount of manure based on the content of organic matter in the soil test results. After the manure is applied to the shed, the fertilization father is evenly spread in the whole shed in the evening, then the rotary tiller is used to turn the ground, water is poured, the air outlet is closed, and the shed is opened for 10-15 days. 3. Before planting vegetables, use a piece of soybean meal slow-release organic fertilizer, biological fertilizer and other pieces to be sprinkled into the shed, turn the ground and ridge, and prepare for planting. Drug shack 1. After the vegetables are pulled, the shed is sealed and dry for 7 days. 2. Cover the mulch film first, then smear the shed pharmacy, such as lime nitrogen, Weibaimu, etc., with water, close the air outlet, and suffocate the shed for about 15 days. 3. Uncover the film for ventilation or drying for 5-7 days. 4. Turn the fermented manure with a rotary tiller, water it, and swell for 10-15 days to promote manure fermenting and decomposing. 5. Before planting vegetables, apply appropriate water-soluble fertilizer, soybean meal slow-release organic fertilizer, biological fertilizer and other pieces to the shed according to the soil testing formula, and turn the ground to prepare for planting. Precautions: One is the combination of dryness and wetness. After 7 days of dryness, the nematodes on the surface layer can be killed, and the problem of nematode resistance caused by simple dryness or wetness can be avoided. Second, it is necessary to plow 25-30 cm. If it is not deep, or only the rotary tiller is turned over, on the one hand, the insecticidal gradient is short, the deep nematode is not controlled, on the other hand, the watering is impervious, the thermal conductivity of the soil is poor, and the thermal conductivity of the water is not exerted. The temperature does not reach the lethal temperature of the nematode, and the control effect is poor. Third, it is necessary to cover the mulch. On the one hand, it is ensured that the ground temperature can reach the lethal temperature of the nematode and lasts for a longer period of time; on the one hand, the high-humidity and confined environment itself can inhibit the nematode. Fourth, it must be closed in the whole shed. And it is best to replace the old film with a new film to facilitate warming. Of course, considering the life of the new film, it is recommended that the new film should not be fixed with a film line, and only the surrounding area can be sealed with mud. Fifth, the exposure time must be sufficient. Ensure that the shed temperature reaches 70-80 ° C and the ground temperature reaches 60 ° C. Pros and cons Relative to the stagnation of the pharmacy, the biological stagnation technology can not only effectively kill the pathogenic bacteria in the soil, but it is also important that the biological suffocating shed can protect the original ecological balance of the soil to the utmost extent. The stagnation of the pharmacy will kill almost all the organisms in the soil, destroying the original ecological balance of the soil. Once the harmful bacteria invade, it will multiply rapidly. This is why some sheds have a good performance in the early stage. The reason why the dead tree is particularly serious in the later period. In addition, after the smoldering of the pharmacy, it is recommended to supplement the biological bacteria, whether it is the base fertilizer or the late application. Moreover, many vegetable farmers who think that the effect of defense is general are mostly mistakes in cutting corners. Therefore, it is necessary to operate correctly according to scientific methods. Do not cut corners because of trouble. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Access Control System,Door Access Control System,Door Entry Systems,Door Access System Zhuhai Mingke Electronics Technology Co., Ltd , https://www.mingke-tech.com