How is the development of greenhouses in the world?

I. China

China has one of the largest greenhouses in the world. According to statistics, the number of greenhouses in China has exceeded 300,000, with a total area of more than 20 million mu, and mainly plastic greenhouses, accounting for more than 57.5%. Greenhouses play an important role in China's agriculture, mainly for the production of vegetables, fruits, flowers, seedlings and other aspects, among which the most common is vegetable cultivation. With the rapid development of new agricultural production models such as facility agriculture and precision agriculture, as well as the state's great attention and policy support for agricultural modernization, China's smart greenhouse industry investment scale continues to expand, technology innovation continues, and the market size is growing rapidly.

Ii. Japan

Japan is a densely populated country with relatively scarce land resources, so Japan has been in a leading position in greenhouse technology and management. Japan's greenhouse technology is very advanced, using a lot of advanced technology and equipment, such as automated control systems, artificial lighting and so on. In addition, Japan has also actively developed plant factories, with output per unit area up to dozens of times that of open-air production, greatly improving the efficiency and quality of agricultural production.

3. The United States

The greenhouse industry in the United States is large in scale, mainly distributed in California, Arizona and other places. Greenhouses in the United States are mainly used for the production of high-value agricultural products such as vegetables, fruits and flowers, of which tomatoes, cucumbers and other vegetables are the most common cultivation. Greenhouses in the United States also use advanced technology and equipment to improve production efficiency and quality.

4. Other countries

In addition to China, Japan and the United States, other countries such as the Netherlands, Spain, Turkey and South Korea are also actively developing the greenhouse industry. These countries have developed their own unique greenhouse agriculture according to their own climate, soil and market demand. For example, the Dutch greenhouse technology is in the world's leading level, and its greenhouse is mainly used for the cultivation of flowers and vegetables; South Korea's greenhouses, on the other hand, focus on meeting the demand of urban consumers for organic vegetables.

On the whole, the development of greenhouses in countries around the world has shown a vigorous trend, which not only improves the efficiency and quality of agricultural production, but also promotes the optimization and upgrading of the agricultural industrial structure. In the future, with the further integration and application of artificial intelligence, big data, Internet of Things and other technologies, intelligent greenhouses will move towards more intelligent, multi-functional, environmentally friendly and sustainable development.