Planting layout is reasonable. When planting vegetables in the shed, the height and low order of the plants should be ensured, and the mutual occlusion should be minimized. The same kind of vegetables should try to ensure the same size of the seedlings and reduce the shading between the plants. It is best to do planting in the north and south to make it as much as possible to accept the sun.
The selection of the non-drip film without droplet film adds several surfactants during the production process, so that the affinity between the water molecules and the film is greatly weakened, and the water droplets flow into the ground along the film surface without water droplets. The use of a drop-free film shed can increase the light intensity in the shed and increase the temperature of the shed.
After ensuring that the shed film is clean and the new shed film is used for 10 days and 15 days, the light in the shed will be reduced by 25% and 28%. The water droplets, dust and other debris on the film will reduce the light transmittance by about 30%. Therefore, it is necessary to clean and rinse the shed frequently to increase the transparency.
When the science reveals that the straw curtains are fine, while doing the insulation work, the straw curtains and the delay curtains for the insulation can be removed early, which can prolong the illumination time and increase the amount of light. Generally, the sun is released 0.5 to 1 hour after the sun comes out, and the curtain is covered half an hour before the sun sets. In the rainy days that stop when the rain stops, the curtains should be properly exposed to make full use of the scattered light of the sun.
When the reflective wall is insufficiently illuminated, the aluminum-coated reflective screen with a width of 2 meters and a length of 3 meters can be hung on the north side of the greenhouse to make it vertical, which can increase the ground by 40% and the temperature of the shed by 3 °C~4. °C. In addition, laying a silver-gray mulch on the ground can also increase the light intensity between plants.
Timely pruning timely and scientifically pruning, smashing, tying vines, playing old leaves and other field management of the branches is conducive to ventilation and light transmission in the shed.
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