Views:0 Author:Site Editor Publish Time: 2019-09-27 Origin:Site
In the greenhouse of traditional furrow irrigation, the amount of water is large at one time, and the surface is kept moist for a long time. Not only the shed temperature and ground temperature decrease too fast, but the temperature rises slowly, and the evaporation increases. The indoor humidity is too high, which may lead to vegetable or flower pests and diseases. Because drip irrigation is a local micro-irrigation, most of the soil surface is kept dry, and the dripper supplies water to the root soil layer evenly and slowly, which has obvious effects on maintaining and recovering the ground temperature, reducing water evaporation and reducing indoor humidity. Under the film drip irrigation, the drip irrigation tube (belt) is placed under the membrane, the effect is better. In addition, due to the convenient operation, drip irrigation can implement high-frequency irrigation, and the outlet hole is small, the flow rate is slow, the time of each irrigation is long, and the soil moisture variation is small, so the soil in the root zone can be controlled to stay close to the most. Suitable for the growth of vegetables, flowers and other humidity. By controlling the indoor air humidity and soil moisture, the occurrence of pests and diseases can be significantly reduced, and the amount of pesticides can be reduced.