In recent years, the occurrence of vegetable root-knot nematode disease has been on the rise in all regions, with melons, tomatoes and celery being the most serious hazards. Diseased plants often reach 30% to 60%, and production is reduced by 20% to 40%. %the above. The occurrence rule of root-knot nematode disease is: autumn is more important than spring, greenhouses are more important than open fields, and greenhouses are more important than greenhouses. Because the nematode is tiny and harmful in the ground, it is often mistaken for a nutrient disease. At present, the disease is still spreading, and it should arouse widespread concern. Symptom recognition Seedlings were infected, and the roots formed millet-shaped root nodules at the initial stage. Later, nodules increased and increased, and the plants grew slowly and weakly yellow. In the adult plant stage, the shoots grew poorly, dwarfed, yellowed, wilted, or early withered, and they appeared to be lack of water and blight symptoms. The fruit is small and little, more deformed. When the disease is mild, there is no obvious disease in the aerial parts, but the yield is affected, and tumors with different sizes can be seen in the underground. Cucumbers suffer from this disease. Some roots do not produce tumors, but they are parasitized in rotting roots. Therefore, when the above symptoms appear in the upper part of the area, the possibility of root knot nematode damage should be considered. At this time, the root of the plant should be excavated for examination to confirm the condition. Prevention technology Put a good seedling clearance No root-knot nematode disease is sown on the plots. The nutrient soil should be formulated with fertile Daejeon soil to cultivate high-quality strong seedlings and planting of diseased seedlings is strictly prohibited. High temperature sunlight disinfection After the current crop is pulled, it is not in a hurry to withdraw the film, clean the ground, and apply 100 kg--150 kq of quicklime powder per 667 m2, then deep-swap the soil, pick the roots and burn it, make it into a pot, put it under water, and cover the ground. Membranes are tightly pressed at all four weeks. The sheds are sealed for 10 days to 15 days so that the soil temperature below the membrane can reach 50°C--60°C. This method can effectively kill the root-knot nematode eggs and larvae in the soil. Meanwhile, for some Soil pests also have a certain elimination effect. Strengthen cultivation management Basal manure should be used as a base fertilizer because chicken manure has a certain resistance to nematodes. Ensure good water and fertilizer conditions and enhance plant resistance to disease. Pay attention to weed removal and reduce nematode reproduction. Immediately remove the plant residues after harvest to eliminate the source of the disease. Chemical control Before planting, apply “net line†3 kg to 5 kg, and dilute it evenly into 20 cm soil layer according to the amount of usage; apply the line to stand and stop the A+ line and stop B. The specific method of use is that the amount of line stop A is the same as that of the “lineâ€. "Net", the line standstill B 300 times liquid sprayed the ground, and then turned into the soil. Once the disease occurs, the available phoxim + bacteria line net, phoxim 1 000 times, bacteria line 3500-7000 times the liquid, after the good, each strain 0.2 kg-0.25 kg per pot. Many people believe that the mushroom soup is delicious. Why do mushrooms taste so fragrant? According to He Jiguo, this is mainly because mushrooms are rich in delicious amino acids. The sources of umami in mushrooms are mainly flavorful amino acids such as glutamic acid and aspartic acid, as well as taste nucleotides such as inosinic acid and guanylic acid. These substances make mushrooms taste delicious, comparable to meat . Hardwood Sawdust,Dry Organic Shiitake Mushroom,Organic Dry Shiitake Mushroom,Organic Dried Shiitake Mushrooms Shandong Qihe Biotechnolegy Co.,ltd. , https://www.qihebio.com