Greenhouse has really brought great help to agricultural development. Are there any shortcomings?

Notice of the Ministry of Finance of China on deepening the integration of rural primary, secondary and tertiary industries and carrying out demonstration actions of revitalizing villages and strengthening counties through industry. Deepening the integration of primary, secondary and tertiary industries in rural areas, carrying out the demonstration action of revitalizing villages and strengthening counties through industry, cultivating and strengthening local economy and rural industries, and realizing the integration of production villages and production villages are important measures to promote industrial prosperity and urban-rural integration, and are of great significance to implementing the rural revitalization strategy and accelerating agricultural and rural modernization. Greenhouse has played an important role in rural agricultural modernization. With the increasing number of modern agricultural parks and family farms in China, greenhouses have been widely used. Then the question comes: why should modern facility agriculture be a greenhouse? What are the advantages of greenhouses?

First, start with the greenhouse. In the 1990s, Sanyuan Bamboo Village in Shouguang, Shandong Province, led by Wang Leyi, the secretary, took the lead in planting warm vegetable greenhouses, which solved the problem of eating vegetables in winter in northern China. At the same time, the vegetable planting technology greenhouse has been extended to more than 20 provinces and cities in China, completely changing the table vegetable culture in China. At the same time, Shouguang has also developed into a vegetable planting base and vegetable base. At present, the greenhouse has developed from earth wall solar greenhouse to spring and autumn multi-span arch shed, flower planting double-film multi-span greenhouse, vegetable planting single-film multi-span greenhouse, solar panel intelligent greenhouse and glass intelligent greenhouse.

1. Greenhouse can realize the production of out-of-season vegetables.

At present, the greenhouse can realize the early sale of spring crops and fruits, the delayed harvest of autumn crops and the production of winter vegetables. By staggering the vegetable production season, the greenhouse realizes the annual vegetable supply and ensures that people can eat fresh vegetable products at the table at any time.

2. Green and pollution-free vegetable production in greenhouse

Greenhouse can isolate pests and diseases to the maximum extent by creating its own microenvironment climate (there are insect-proof nets in the vents of greenhouse), and reduce the damage of outdoor dust and smoke to plants. At the same time, the greenhouse can reduce the damage of natural disasters to crops and produce high-quality pollution-free vegetables.

3. Greenhouse is energy efficient.

Effective use of natural light energy to produce high-quality anti-season vegetables in winter. The greenhouse adopts transparent covering material, which has the advantages of fast temperature rise and good illumination. In a sunny greenhouse, the indoor temperature is more than 20 degrees higher than that outside, and it is 2-3 degrees higher at night. Because the optimum temperature for vegetable production is 20-30℃ and the minimum growth temperature is at least 5-8℃, vegetable production in winter can be completed through greenhouse facilities. The greenhouse has a large temperature difference between day and night, and the nutrient production cycle is long, so the quality and yield of watermelon, melon and fruit vegetables are greatly improved.

The greenhouse can be mechanized.

At present, the vegetable greenhouses built in recent years can be combined with the Internet of Things control software system to realize intelligent automatic control of sunshade, ventilation, cooling, heating, irrigation and fertilization systems in greenhouses. Greenhouse can be monitored in real time by mobile phone computer, saving water, fertilizer, electricity and energy, and reducing labor.