What are the advantages of greenhouses? What are the benefits of greenhouses?

1. Extend the planting period of the whole year and plant in greenhouses, which reduces the restrictions on planting due to weather reasons and prolongs the planting period throughout the year. In addition, it can also grow out-of-season and early-maturing agricultural products to avoid the peak of the market and better increase income.

4. Make a farmhouse.

In the open air in the field, that's really farm work, tired! Tourists come to pick, just to play, so the response to picking in the greenhouse is better.

5. With the support of science and technology, a very small number of rural areas try photovoltaic agricultural greenhouses, in addition to intelligently adjusting the temperature, humidity and other conditions in the greenhouse, saving labor, and selling electricity through solar power generation in the case of uninterrupted planting throughout the year.

Solar greenhouse is a new type of greenhouse that is economical, environmentally friendly, scientific and practical. After years of development, the solar greenhouse has developed from the previous cement column bamboo pole material to the current hot-dip galvanized steel pipe material, and the change of materials has greatly improved and improved the life, use, operation, construction and management of the solar greenhouse. There are two main types of solar greenhouses: brick-walled solar greenhouses and earth-walled solar greenhouses.

The structure of the back wall of the two is different, and the materials of the brick wall back wall are many such as red bricks, hollow bricks, foam bricks and other materials, and the construction is simple and convenient, and the appropriate materials can be selected according to the local conditions; The construction operation of the earth-walled solar greenhouse first needs to be constructed with an excavator according to the local terrain conditions, and the applicable terrain is limited, and the construction difficulty increases. The covering material of solar greenhouse has developed from film cover to sun panel covering, glass covering, and endurance board covering. In addition, solar panels can be installed according to different uses, so that the use of greenhouses can be increased to meet more practical needs. With the progress of science and technology, the installation of supporting facilities in solar greenhouses has realized automatic operation management, automatic ventilation, cooling and temperature raising, sprinkler irrigation and fertilization, lighting control, etc.

1. Meet the quality requirements of urban consumer groups. Most of the vegetables we produce are sold to city dwellers. Nowadays, the living standards of urban residents are improving rapidly, and there are strict requirements for the hygiene, safety, quality and commerciality of vegetables.

Out-of-season, pollution-free vegetables, melons and fruits are popular with the public, and ** is often higher. Second, advanced technology has been popularized and applied faster and better in agriculture. Due to the use of natural energy in greenhouse production, the full implementation of rain-sheltered cultivation technology, water-saving irrigation technology, formula fertilization, standardized production technology, can greatly increase the added value of products, and is more conducive to the establishment of a number of large-scale high-quality agricultural product production bases.

3. Reduce the investment risk of planting industry. Agricultural plantation is an open-air factory, and natural disasters are frequent. In March this year, after a snowfall, I saw nearly 100 acres of mulch potatoes in several surrounding villages along the road that were severely frost damaged, and the damage was very heavy.

However, the potatoes planted in the bamboo greenhouse are growing very well. This year's greenhouse potatoes were listed in early April, with high quality and considerable benefits. Potatoes grown in the open air are available in late May, and the output value is about one-third of that of greenhouses.

The open-air planting varieties are relatively single and concentrated, the quality is poor, and the benefits can be imagined. Through the cultivation technology of greenhouse facilities, the investment risk can be effectively controlled or reduced, and the return on investment of the planting industry is higher. Although the cost of open-air cultivation is low, the natural risk and sales risk are very large, and the benefits are unstable.

Fourth, make effective use of natural light energy in winter to produce high-quality off-season vegetables. Farmers spend about four months (November to March) after harvesting in the fields, which is the best time for greenhouse vegetable production. The greenhouse uses a new film, which has good light transmittance (the new film transmittance is greater than 90%, and the old film is less than 60%), and the temperature rises quickly.

On sunny days, the temperature inside the greenhouse is more than 20 degrees higher than the outside, and at night it is 2 to 3 degrees higher. Since the optimal temperature for most vegetable production is 20 to 30 degrees Celsius, and the minimum temperature for growing is at least 5 to 8 degrees, winter vegetable production can be completed through greenhouse facilities. The daytime temperature difference in the greenhouse is large, the nutrient production period is long, and the quality of watermelon, melon and fruit vegetables produced is greatly improved, and the output is greatly increased.

First, the first is to meet the needs of urban consumers, many greenhouses can grow vegetables can be enjoyed by more people, especially some out of season, pollution-free vegetables, melons and fruits are popular with the public, often high.

Second, advanced technology has been popularized and applied faster and better in agriculture. Greenhouse is the natural energy used in the whole process, so it has been improved in some technologies, which is more conducive to the establishment of a number of large-scale high-quality agricultural product production bases.

3. Reduce the investment risk of planting industry. We all know that the cultivation industry between heaven and earth can be affected by natural disasters and cause serious losses. However, growing in greenhouses can avoid serious natural disasters and the risk can be effectively controlled or reduced.

Fourth, the greenhouse can be planted off-season vegetables. We also often buy out-of-season vegetables, which are planted and cultivated through greenhouse planting technology, and can be planted and cultivated by using the winter sunshine to grow more excellent out-of-season vegetables, and the yield is very large to meet people's needs.

First, the greenhouse can realize the production of off-season vegetables.

Second, the greenhouse produces green pollution-free vegetables.

3. Greenhouse is efficient and energy-saving.

The temperature and humidity can be reached optimally, and the plants grow quickly. It can be cultivated out of season to improve efficiency.

In modern agriculture, the common types of greenhouses are as follows:

1. Single arch shed.

Another single greenhouse is a span of greenhouses for a space. Such greenhouses are used as spring and autumn sheds in the northern region, and as a protection against cold and frost in the southern region. The single arch shed is the lowest cost in the agricultural greenhouse, and it is also the easiest to build, but the disadvantage is that there are shortcomings in snow resistance, heat preservation, mechanization, automation, and scale, and it is suitable for use in areas with abundant labor.

2. Solar greenhouse.

The solar greenhouse, also known as the winter warming vegetable greenhouse, is generally oriented east-west, and an earthen wall or brick-concrete structure is built on the north side. This style of greenhouse is generally used in the northern region, and its advantage is that it has good thermal insulation performance. For example, in the case of winter warming solar greenhouse (earthen wall type) without heating in winter, the normal production of wintering vegetables can be realized at an outdoor temperature of more than ten degrees below zero with the help of quilts.

However, because the backslope of the earthen wall greenhouse is afraid of blisters and heavy rains, it is not recommended to choose this style of greenhouse in areas with shallow groundwater level and heavy rainfall. There is also a branch of the solar greenhouse for the yin and yang shed, that is, a greenhouse with a smaller span is also made on the shady side to grow shade-tolerant crops such as fungi.

3. Double-sided slope greenhouse.

The direction of this kind of greenhouse is north-south, which can also be said to be a strengthened version of the single arch shed. This kind of greenhouse can be added to the top of the quilt, and the span on both sides can be 12 meters or more. The advantage of this type of greenhouse is that it has a high land utilization rate and can be installed with automated modern agricultural equipment.

However, in the northern regions, where the temperature is below minus 10 degrees, it is still necessary to provide heating if you want to produce in winter.

Fourth, multi-story greenhouses.

The multi-story greenhouse is a single greenhouse connected together by a water tank, which is suitable for large-scale, fully automated and large-scale agricultural parks. Among them, the multi-story greenhouse is divided into film multi-building greenhouse, sunlight board multi-building greenhouse, and glass multi-building greenhouse according to its covering material. The film multi-story greenhouse is suitable for planting, and the overall architectural effect of the sunshine panel and glass multi-story greenhouse is beautiful and generous, which is suitable for ecological parks, ecological restaurants, etc.

First, the greenhouse can ensure the temperature in winter and can carry out the off-season production of vegetables.

Second, because the greenhouse is planted in a protected area, it is generally covered with plastic film, so it can effectively control pests and diseases.

The third is to apply efficient production technology in the greenhouse, which has good durability and is protected by greenhouses, so it is protected from external wind, cold and light.

Greenhouse flange fin tube is a suitable system for finned tube radiators, and it is also a more common type of finned tube radiator in life. The hot water finned tube radiator heats the water at a temperature higher than the water inlet, and the temperature in the room is increased by the heat dissipated from the hot water. Greenhouse flange fin tube is often used in a larger area of the plant, the heat required by the large area of the plant and the heat required by the small area of the room is geometrically increased, so the heating performance of the radiator is better, and the heat with low efficiency of the radiator will appear to be twice the result with half the effort.

Finned tube radiator.

The heating efficiency of the greenhouse flange finned tube needs to cooperate with each other between the various parts of the finned tube radiator, from the temperature of the inlet water, the flow speed of the internal medium, the heat dissipation of the radiator, etc., these are all required to be debugged by the radiator itself, and the indoor thermal insulation effect also plays a role in improving the heat dissipation effect. Greenhouse flange fin tube is often used in greenhouse planting facilities heating equipment, its material is common steel, stainless steel, aluminum material, etc., more commonly used is steel radiator, steel radiator heat dissipation efficiency and working performance are better. <>

Finned tube radiator.

The flange finned tube of the greenhouse has an efficient anti-corrosion ability, because a certain amount of moisture and humidity is required to create a good growth environment in the greenhouse, so the requirements for the anti-corrosion performance of the radiator are higher. The finned tube radiators used for greenhouse planting are treated with anti-corrosion, and its anti-corrosion is divided into internal anti-corrosion and external anti-corrosion.

Finned tube radiator.