The role of the greenhouse
Greenhouses are a kind of facility agriculture that has been developed in the past ten years, from the original production of off-season vegetables to the current application of agricultural plant protection and increased yield in various fields. In recent years, more and more modern greenhouses have been constructed. So the question is, why should modern facility agriculture be Sichuan greenhouses? What are the advantages of greenhouses?
Greenhouse
First of all, we have to start with the rise of greenhouses. In the 1990s, in Shouguang, Shandong, a Sanyuanzhu village, under the leadership of Secretary Wang Leyi, took the lead in planting winter-warming vegetable greenhouses, which solved the problem of the difficulty of eating vegetables in winter in the north. At the same time, the planting technology of vegetable greenhouses was extended to more than 20 provinces, cities and regions across the country, which completely changed the vegetable culture of my country's dining table. At the same time, Shouguang has also developed into a vegetable planting base and a distribution center for vegetable wholesale trade. At present, after so many years of development, greenhouses have also developed from earth-wall solar greenhouses to spring and autumn multi-span arch sheds, double-layer film multi-span greenhouses for flower planting, single-layer film multi-span greenhouses for vegetable planting, sun panel smart greenhouses, and glass smart greenhouses. .
1. Greenhouses can produce off-season vegetables
At present, the greenhouse can realize the early launch of spring vegetables and fruits, the postponement of the harvest period of autumn vegetables, and the production of winter vegetables. The greenhouse realizes the year-round vegetable supply by staggering the vegetable production season, and the people can eat fresh vegetable products at any time on the table.
2. Greenhouse production of pollution-free vegetables
The greenhouse can largely isolate pests and diseases by creating its own small environment and climate (the vents of the greenhouse are equipped with anti-insect nets) and reduce outdoor dust, haze and other damage to plants. At the same time, greenhouses can reduce the damage to crops caused by natural disasters and produce high-quality pollution-free vegetables.
3. Greenhouses are highly efficient and energy-saving
Effective use of natural light in winter to produce high-quality off-season vegetables. Greenhouses use light-transmitting covering materials to heat up quickly and provide good light. The temperature in the greenhouse is more than 20 degrees higher than the outside on a sunny day, and 2 to 3 degrees higher at night. Since most of the vegetable production temperature is between 20 and 30 degrees, and the very low growth temperature is at least 5 to 8 degrees, winter vegetable production can be completed through greenhouse facilities. In the greenhouse, the temperature difference is large during the day and the nutrient production period is long. The quality of the watermelon, melon and fruit-bearing vegetables produced is greatly improved, and the output is greatly increased.
4. the greenhouse can be mechanized
At present, the vegetable greenhouses that we have built in recent years can be combined with the Internet of Things control software system to realize intelligent and automatic control of the shading, ventilation, cooling, heating, and irrigation and fertilization systems of the greenhouse. It is true that the use of mobile phones and computers can monitor and control greenhouses in real time, which can save water, fertilizer, electricity, and energy consumption while reducing labor.
