Greenhouse vegetable production was originally dedicated equipment, along with the development of greenhouse production applications become increasingly widespread. Greenhouse shade covering the role: shading effect. Shade net, so shed light intensity was significantly reduced, the greater the density specifications nursery greenhouses prices, shade the better, the same specifications as the black shading effect is better than silver. Usually black shading rate of 42% -65% nursery greenhouses manufacturers, silver was 30% -42%. Greenhouse cultivation type: the cultivation of vegetables nursery greenhouses, with seedlings. There are two main forms: First spring early planting eggplant, tomatoes, cucumbers, peppers and other summer planting fast-growing vegetables, autumn planting cucumber, tomato, cabbage, cauliflower, winter planting celery, spinach, lettuce, onion and vegetables.