The investment cost of an acre of land for planting vegetable trellis is about 30,000 yuan. The price of vegetable greenhouses is about tens of dollars per square meter. Different categories of vegetable greenhouses have different prices. As far as the category is concerned, bamboo poles and wood are used as arch materials. Advantages are easy to take materials, easy to build, low cost, about 3,000 yuan per acre; disadvantages are low strength of the arch frame, poor resistance to wind and snow, easy to rot, need to repair and replace every year, operation and management is not very convenient.

The greenhouse covering materials are as follows:

1, ordinary film: polyethylene or PVC as raw materials, film thickness of 0.1 mm, colorless and transparent. The service life is about half a year.

2, multi-functional long-life film: is in the polyethylene blow molding process to add the appropriate amount of anti-aging materials and surfactants made of life than the ordinary film twice as long, the night shed temperature is higher than other materials 1-2 ℃. And the membrane is not easy to knot water droplets, covering effect is good.

3, grass quilt, grass thatch: made of straw textile, good thermal insulation performance, is the night insulation material.

4, polyethylene high foam soft sheet: is white multi-bubble plastic soft sheet, 1 meter wide, 0.4-0.5 cm thick, light weight can be rolled up, heat preservation and grass is similar.

5, non-woven fabric: a polyester filament, not woven cloth. Divided into black, white two kinds, and have different density and thickness, common specification 50g/? In addition to thermal insulation is also often used as a shade net.

6, shade net: a plastic woven wire mesh. Commonly used black and silver gray two kinds, and there are several density specifications, shading rate varies. Mainly used for summer sun and rain, can also be used for winter insulation cover.

Expanded information:

The greenhouse planting should pay attention to:

1, to determine a reasonable Planting time

The height of the benefits of greenhouse vegetables depends largely on the planting time of the morning and evening, anti-seasonal vegetables, before and after the spring is the highest period of benefits, should be planted before and after the time to determine the spring for the highest yield period as a basis for the planting time.

From the original development of a crop of one year to 70% of the current two crops a year, planting period roughly: a crop of one year planting period in October, and two crops a year for: the first crop in July, in mid-July, the second crop in December to the next year in January planting. This planting time is more efficient.

2, the selection of high-yield disease-resistant seeds

Species is the endogenous cause of increased production. High-yield cultivation techniques are inseparable from the first seed. The use of greenhouse facilities to plant anti-seasonal vegetables rely on adequate light and heat resources, mainly planting tomatoes, cucumbers, eggplants, peppers, beans, melons and other major categories of vegetables and fruits. Choose a good variety of general yield increase of 10% to 20%, the benefit increased by more than 10%.

Baidu Encyclopedia - greenhouses