Greenhouse vegetables have become the main way of vegetable reproduction now, with the advantages of high yield and solid production. Secondly, greenhouse vegetables are not subject to seasonal restrictions and can provide market demand for the whole year. The following is a brief introduction to the cultivation techniques of vegetable greenhouses and the prospects of greenhouse vegetable cultivation. Selection of shed materials: the construction of greenhouses, the main material selection is based on ordinary film, longevity film, non-woven fabric, shade net, grass. Location selection: The location of the greenhouse should be in the sunny and sheltered places. Secondly, the location should be selected for fertile soil, easy land preparation and good drainage performance. Scaffolding type: There are many types of greenhouse vegetables. The main choices are bamboo and steel, and the most common one is bamboo and wood greenhouse. Scaffolding size: The greenhouse vegetable is selected as the basic material. The height can be about 2 meters and the width is 4 meters. The greenhouse of this material has a life expectancy of about 3 years. The choice of steel pipe greenhouse, the height of 2.2 meters or more, the width of 6 meters or more, the general service life can be as high as 15 years or more. Vegetable variety Greenhouse vegetables can only be suitable for spring solanaceous varieties, so the utilization rate of greenhouses will be reduced a lot. The cost of planting winter vegetable varieties is higher, but it does not improve production efficiency. More choices to start seedlings in autumn and early winter, after entering the spring, it is the planting time. The choice of greenhouse vegetables is cabbage, tomato, cucumber, broccoli, eggplant, green pepper, red pepper, spinach, lettuce, spinach, green onion, four seasons. Beans, lentils, etc. Sunshade and rain Sunshade and rain protection are the key to greenhouse vegetable cultivation. Correct sunshade and rainproof can produce high yield, while long-term obstruction is not conducive to plant photosynthesis. Spring: Spring is a rainy season, so it is recommended to choose a semi-shade treatment, the seedling effect is stronger, and it can be quickly blocked when it rains. Summer: Choosing a non-woven fabric as the main material of the greenhouse, it needs to be completely shaded in summer, and the light transmitted through the day is enough to meet the photosynthetic needs of greenhouse vegetables, and the refractive index should not be lower than 65%. Autumn: In the rainless weather, it can be completely blocked by the sun until it enters the frosty weather. Generally, the occlusion work needs to be carried out at 18:00 - 9 am, and it can be completely open during the day. Winter: It is recommended to directly block the winter, and then use the indoor heating, light and other conditions for photosynthesis. You can choose the film at noon and snow. Greenhouse vegetable planting prospects The profit of planting vegetables in greenhouses needs to be determined according to the planting area. In terms of cost, the construction of bamboo and wood greenhouses costs about 15 yuan per square meter, while the cost of bamboo and wood greenhouses in one mu of land is about 8,000. The maximum is 10,000. The most common use time for building bamboo and wood greenhouses is 3 years. Combined with the work of changing the film every year, the cost price per year is about 4,000 yuan. The vegetables grown in greenhouses will sell at a higher price than ordinary vegetables. The sales are strong. In terms of purchase price, the purchase price of one-acre greenhouse vegetables per year can be as high as 20,000 or so. The highest is also achievable. About 3 yuan. After the compromise, each year's greenhouse vegetables can be sold for 25,000 yuan, minus the cost price of 40,000, the average profit per mu of greenhouse vegetables per year, the minimum can reach more than 20,000 yuan. Summary: Considering the market demand, greenhouse vegetables are gradually welcomed by the market. Whether it is for planting conditions or profit, greenhouse vegetables are the best choice for getting rich. 160G Toothpaste,Activated Charcoal Toothpaste,Dentist Toothpaste,Gel Toothpaste Shenglong Co.,Ltd , https://www.sl-oralcleaning.com
