For greenhouses, I believe that most people’s understanding of it will stop at the planting of off-season vegetables! But what I want to say is that the greenhouse is not as simple as it is said. Its construction also contains scientific principles. The installation of many accessories must follow certain rules. For example, the drip irrigation pipeline of the greenhouse must be installed on the surface instead of underground. Do you know why this is? Next, Qingzhou Lijing Greenhouse Engineering Co., Ltd. will give you a popular science!
When irrigation is carried out in the greenhouse every week, the end of each drip irrigation pipeline is opened in turn, and the fine particles accumulated at the end of the drip tube are washed out with a high-pressure water stream. The pipelines must be opened one by one to ensure sufficient pressure; when the drip irrigation pipeline is working, the outlet of the dripper must be up to the sky to prevent the drip irrigation pipeline from inhaling dust and clogging when the water is stopped; the drip irrigation pipeline must be on the surface and must not be buried by sand.
The light transmittance of the greenhouse is affected by the light transmittance of the light-transmitting cover material of the greenhouse and the shadow rate of the greenhouse skeleton. With the different solar radiation angles in different seasons, the light transmittance of the greenhouse also changes at any time, and the level of the light transmittance becomes Factors directly affecting crop growth and selection of crop varieties for planting. Generally, the multi-span plastic greenhouse is 50%~60%, the light transmittance of the glass greenhouse is 60%~70%, and the solar greenhouse can reach more than 70%.
During the irrigation season, the air valve of the greenhouse is required to ensure that the lower ball valve is in the fully open position to eliminate various damages caused by the air; during the irrigation every day, the operator must conduct inspections in the field. Pipes, field valves and drip irrigation pipelines; when irrigating every day, check whether the working pressure and flow rate of each rotation irrigation group are the same as the design, and whether all drip irrigation pipelines have water, and record them.
Post time: Apr-07-2021