Description：

Vegetable greenhouse is an excellent thermal insulation properties of the film structure frame , so it appears that people can eat in-season vegetables. Usually vegetable greenhouses using steel skeleton , the top covered with a layer or multi-layer insulation plastic film, thus forming a greenhouse space. Drain well to prevent the outer membrane of the internal growth of vegetables produced by carbon dioxide , so the studio has good insulation effect .
 

Vegetable Film Greenhouse：

Adjust vegetable production season, Promote high yield and quality of vegetables, it is one of the effective means to increase revenue. Commercial vegetable greenhouse from most people, the benefits are obvious. But some greenhouse vegetable cultivation, the effect is unsatisfactory, in addition to vegetable varieties wrong way, the "four evils" of the constraints is often an important factor in the loss. Such as:

●Fertilizer damage.
The product is actually harmful salts, mainly due to the partial excess chemical fertilizers or fertilizing the soil salinization generated. Problems arising after fertilizer damage occurs, first suppressed vegetable root development, weaken the water, fat absorption function; The second is the soil solution concentration is too large, the occurrence of reverse osmosis vegetable strains body, leading to physiological wilting or scorched leaf margins; Third it is marching toxic gas hazards; Fourth initiator vegetables element deficiencies.

●The injury. 
There is explicit phytotoxicity symptoms. There are hidden injury, symptoms of latent or deferred JC vegetable. Causes injury, first choice of pesticides wrong way or a misuse of herbicides; The second is the concentration of pesticide is too large; Third is to purchase and use a low-quality pesticides; Four is not enough to avoid the hot season spraying. After the injury occurred, and some vegetables blade quickly chlorosis; Some produce burns, perforation; some leaves, flower, fruit drop or deformity; The most serious whole withered.

●The drought victims. 
There is explicit phytotoxicity symptoms. There are hidden injury, symptoms of latent or deferred vegetable. Causes injury, first choice of pesticides wrong way or a misuse of herbicides; The second is the concentration of pesticide is too large; Third is to purchase and use a low-quality pesticides; Four is not enough to avoid the hot season spraying. Causes, one vegetable greenhouses inappropriate siting, local lack of water; Second, although the water, but poor water quality; the third is the amount of water than the foot, ditch, drainage, irrigation and drainage facilities are not complete, water is difficult to lead. Drought damage affecting both vegetable sowing seedlings security, but also affect the norma growth of vegetables, and vegetable fertilizer to fight drugs and other management has brought great difficulties.

●Even stubble obstacles. 
It is in the same category or the same kinds of vegetables, while the yield and product quality is declining. Cause disorder, one is similar or the same kind of vegetables you prefer a certain nutrients, such elements is not timely supplement prone element deficiencies; the other is due to the accumulation of soil diseases caused by pathogens cause, such as Fusarium wilt, Wilt etc.
 

Solutions：

If you want to know more about  greenhouse , please send E-mail to sales@cngreenhouses.com