Hot-dip galvanization is a form of galvanization. It is the process of coating iron and steel with zinc, which alloys with the surface of the base metal when immersing the metal in a bath of molten zinc at a temperature of around 840 °F (449 °C). When exposed to the atmosphere, the pure zinc (Zn) reacts with oxygen (O2) to form zinc oxide (ZnO), which further reacts with carbon dioxide (CO2) to form zinc carbonate (ZnCO3), a usually dull grey, fairly strong material that protects the steel underneath from further corrosion in many circumstances. Galvanized steel is widely used in applications where corrosion resistance is needed without the cost of stainless steel, and is considered superior in terms of cost and life-cycle. Galvanized Steel Pipes GREENHOUSE,Galvanised Pipe,Galvanised Steel Pipe JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.skyplantgreenhouse.com
How to make cineraria bloom better
Cineraria is a perennial herb of the Asteraceae family. Flowering from November to May of the following year. 1, pot soil melon chrysanthemum like fertile, loose, well-drained acidic sandy soil. Cultivation pot soil available garden soil 4 copies, rot leaf soil 2 copies, compost soil 2 copies and 2 parts of river sand mixed preparation, and add cake fertilizer and superphosphate base fertilizer. 2, the upper basin when the seedlings grow two leaves, it is appropriate to use shallow pots planting, take culture soil 80%, 20% of fine sand mixed with pots, calyx pots per pot planted three. Sub-seedling about 40 days, grow to 4 to 5 leaves, move into the 6-inch receptacle tray, when the basin to bring more soil, a pot of each plant, planted and then irrigated, placed in a cool place, until the restoration of seedlings Give plenty of light after life. After 60 days on the pot, white roots appear on the pelvic floor and can be exchanged into 8-inch pots. 3, light geranium is a short day hi light flowers. Adequate lighting conditions can not only make the plant crowns neat, compact, and flourish, but also can enhance disease resistance and reduce the occurrence of pests and diseases. Insufficient illumination will make the flower stems grow slender, and the colors are light and not positive, affecting the appearance. Should be 8 hours of sunshine a day in the summer, avoid direct sunlight in the summer, otherwise it will make the tip yellow, should be placed in a well-ventilated place with scattered light conservation, winter snowy days should prevent the lack of light. In the management, with the growth of the leaves of cineraria, the spacing of the pots should be enlarged in time, and the pots should not be too dense and cover each other to avoid lifting the geranium. The chrysanthemum has a strong phototaxis and should often be turned into pots. It does not make the plants grow to one side and keep the plants even. 4. The temperature of cineraria occurs when the temperature exceeds 15°C. It is advisable to control the temperature at 7°C to 10°C. At the same time, the air is often open for ventilation to create a cool microclimate. In the case of low temperatures, accumulation of assimilation products will accumulate more and more for the buds. 5, fertilization well-developed leaves is the fundamental guarantee of the cineraria. During the cultivation period, especially when the color is fresh, except that the soil should be kept moist and not stained, the leaves should be sprayed with 0.1% urea so that the leaves will be green and moist, and the basin soil will be cool. During the period of cultivation and management, it is possible to pour once every 7 to 10 days a thin fragrant pomace fluid mainly composed of organic fertilizer. About 100 days after planting, combined with foliar spray, spraying potassium dihydrogen phosphate fertilizer solution once every 10 to 15 days, can promote flower bud differentiation, and the color is beautiful. 6. Insects and insect pests are poorly ventilated, the plants are crowded and mismanaged, and they are vulnerable to locusts or spider mites. They can be sprayed and killed with 1500-fold dilutions of 2000-fold dimethoate. Leafminers often occur at the seedling stage and are usually treated with a 1500-fold dilution of 40% dimethoate. High temperature and humidity, poor ventilation, prone to powdery mildew, can be diluted 1000 times thiophanate solution or diluted 1000 times 50% carbendazim solution spray.