Winter greenhouse vegetable cultivation in solar greenhouse In the middle and late October, cucumbers were planted over the winter, and 4 to 5 leaves of physiological seedlings were planted in time. Water should not be flooded with sapling seedlings. It is necessary to pour a small ditch for 3 to 5 days before the seedlings grow new roots. Then select sunny morning morning gutters to meet the moisture requirements of the seedlings during the sapling period. After 5 to 6 days of watering, we need to carry out ploughing. We need to carry out the larvae twice in the sapling period. From the plants to the ridge bottom, from shallow to deep, the root melons should be seated, and the sturdy mulch must be covered before swelling melon water to promote root growth. To facilitate the winter. Before planting or before watering, spray medicine to prevent downy mildew and epidemic. Delay vegetable cultivation management Delay cucumbers, zucchini, and tomatoes into the fruit expansion period, and timely fertilizer to promote growth, Mushi DAP 15 kg to 20 kg, with water flushing. In the middle of October, the greenhouses with old shed films should be replaced with new ones on sunny days in the morning without wind to increase light and increase production. For the temperature-controlled vegetables cultivated in various protected areas, the temperature should be controlled at 24°C to 28°C during the day and 12°C to 16°C at night. When the outside temperature drops below 10°C, close the vents in time. When the outside temperature drops to 8 °C ~ 10 °C, grasshoppers will be increased in time so that the temperature in the shed can be controlled at 12 °C or more in the morning to facilitate the normal growth of the crop. If squash and cucumbers are cultivated in a large shed, they must be topped with two leaves before the end of October to increase the yield. Open-air vegetable fertilizer management For open-grown vegetables such as Chinese cabbage and celery, it is necessary to spray and control downy mildew, soft rot, leaf spot, and whitefly and aphid in time. In the middle and late October, we must do a good job of preventing the cold in light of weather changes, and combine spraying and spraying with No. 1 or Yunzhisutong (Yunda-120) to improve the cold resistance of the crop; when the cold current arrives, Antifreeze can be poured; under conditions, a little coverage can effectively extend the crop growth period. Vegetable sowing and pest control The varieties of vegetables sown this month include overwintering spinach (tip leaf varieties), moss, and sorghum. Before sowing, apply organic fertilizer 2 to 3 cubic meters. To adjust soil moisture and prevent it from drying out after sowing. In the second half of the year, Yangshuo or simple winter sheds (garlic) can be sown, which can be put on the market from the New Year to the Spring Festival. There is a large temperature difference between day and night in October. Dew is severe in the morning and evening. It is easy to induce cucumber and cabbage downy mildew. It is necessary to spray 50% Anke 1500 times plus 80% of Dasheng M-45, 5 to 7 days, and spray 2 or 3 times. . Control melon powdery mildew to spray 43% of Esterella or 50% Tsui Bay 5000 ~ 7000 times liquid, and even spray 1 or 2 times. Whitefly, No. 1 spotted fly, and larvae can be sprayed with green vegetable treasures, and 5% ping 1500-2000 times can be used for various crickets, which can effectively prevent and control the occurrence of the aforementioned pests. Tungsten carbide thermal spray powder is a type of powder material that is used in thermal spray processes. It is composed of tungsten carbide particles, which are combined with a binder material to form a powder. Tungsten Carbides,Tungsten Carbide Powder,Tungsten Carbide Coating,HVOF Tungsten Carbide Coating Luoyang Golden Egret Geotools Co., Ltd , https://www.xtclasercladding.com
Thermal spraying is a coating process that involves heating the powder material to a molten or semi-molten state and then spraying it onto a surface to create a protective or functional coating. Tungsten carbide thermal spray powder is known for its hardness, wear resistance, and high melting point, making it suitable for applications where extreme wear or high temperatures are present.
The tungsten carbide particles in the powder provide the coating with excellent wear resistance, while the binder material helps to bind the particles together and adhere them to the surface. The powder can be sprayed using various thermal spray techniques, such as flame spraying, plasma spraying, or high-velocity oxy-fuel spraying.
Tungsten carbide thermal spray coatings are commonly used in industries such as aerospace, automotive, oil and gas, and mining, where components are exposed to harsh environments or abrasive conditions. These coatings can provide protection against wear, erosion, corrosion, and high temperatures, extending the lifespan of the coated components.