Modern greenhouses (especially developed countries) are dominated by large greenhouses.

The Netherlands, the United States, Israel and other countries have vigorously developed the intensive greenhouse industry. The temperature, light, water and air in the greenhouse have been computerized and controlled, forming a complete set of standardized technical systems.

1. U.S.A

In the late 19th century, with the rise of heavy industry in the United States, the greenhouse industry has also achieved rapid development in the United States. The concept of greenhouses has become more popular and practical. Anyone interested in horticulture can have a greenhouse that they can afford.

The greenhouse area of the United States is about 19,000 square kilometers, mainly used for planting flowers, accounting for about two-thirds of the total greenhouse area.

Due to the increasing concern about food safety and health, in order to avoid the health hazards of food pollution, many families in the United States have introduced horticultural technology, adding some new ideas to traditional horticulture, turning their backyard into a practical plantation. In order to plant plants in the courtyard under various climates, the courtyard greenhouse came into being.

In the past 10 years, American households have seen a variety of greenhouses, such as stand-alone glass greenhouses, free-standing plastic film greenhouses. Some courtyard greenhouses are built on roofs or balconies or on decks of ships.

The Netherlands is a country with very scarce land resources. The per capita cultivated land is only 0.2 hectares, but it can rely mainly on modern facilities for horticulture and aquaculture, making it an agricultural exporter after the United States.

2. Netherlands

The Netherlands is a country with well-developed facilities and gardening. There are currently 17,000 hectares of smart greenhouses, all of which are glass greenhouses, accounting for 1/4 of the world's glass greenhouses. They are mainly used for growing flowers and vegetables. The vegetables produced in the Dutch greenhouse account for 3/4 of the total value of domestic vegetables, and most of them are sold all over the world. The Netherlands is the world flower trade center. The flower industry is very developed. It is mainly cultivated in greenhouses and is the world's largest flower exporter.

The smart greenhouse in the Netherlands is in the forefront of the world in terms of size, scale and level. However, there are no enterprises specializing in the manufacture of greenhouses. Although there are some professional manufacturers of accessories, the production of greenhouses and supporting facilities is completely dependent on a highly socialized An international market system.

The Dutch greenhouse engineering company has provided engineering services to the Netherlands and Europe to countries around the world, especially developing countries.

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3. Japan

In the 1970s, during the rapid development of greenhouse agriculture in Japan, the government provided farmers with large modern smart greenhouse fees.

The use of funding has greatly promoted the development of the facility horticulture industry. In 2011, Japan had 51,200 hectares of modern intelligent greenhouses.

Other regions (2011)

In the Mediterranean coastal areas, due to better climatic conditions, the greenhouse industry has developed rapidly, with an area of 353,000 hectares. Among them, there are 72,800 hectares of smart greenhouses in Italy, 26,500 hectares in France, 71,700 hectares in Spain and 2,200,000 hectares in Portugal. Eastern European countries: Hungary has 12,300 hectares of smart greenhouses, 0.36 million hectares in the Czech Republic, and 0.12 million hectares in Romania. Nordic countries: smart greenhouses 1.67 million hectares.

Americas: Intelligent greenhouses of 15,600 hectares.