In the winter and spring seasons where the light time is short and the intensity is low, sunlight is collected in greenhouses and plays an important role in increasing the yield and quality of vegetables. Specific measures are as follows: First, a reasonable layout. When planting different types of vegetables in greenhouses, the principle of “lower height from the north to the south†should be followed, so that the plants can be staggered and arranged in an orderly manner, minimizing mutual obstruction. Transplanting the same kind of vegetables, trying to make the seedlings the same size, so that the plants grow neatly and reduce the shade between plants. At the same time, it is better to do planting in the north and south to make it as sunny as possible. Second, keep the shed membrane clean. Water droplets, dust, and other debris on the film will reduce the light transmittance by about 30%. After the new film is used for 2 days, 10 days and 15 days, the lighting in the shed will be reduced by 14%, 25%, and 28% in turn. Therefore, frequent cleaning should be done to increase the transparency of the film. Snow should also be cleared of snow in a timely manner. Third, the choice of non-drip film. The drop-free film incorporates several surfactants in its formulation to allow water molecules and film surfaces to flow into the ground without any water droplets. The use of a drip-free membrane shed can increase the light intensity in the shed and increase the temperature of the shed. Fourth, reasonably uncover the straw curtain. Under the premise of doing a good job of insulation work, appropriate early removal of the straw curtain used for heat preservation and delay cover curtains can extend the lighting time and increase the light quantity. Generally, the curtain is uncovered 0.5-1 hours after the sun comes out, and the curtain is covered half an hour before the sun goes down. Especially in the rainy days when it rains, it is necessary to properly uncover the sun's scattered light. Fifth, set the light curtain. With a 2-meter-wide, 3 meter-long aluminized film reflector, hanging on the north side of the greenhouse to make it perpendicular to the ground, it can add 40% light to the ground, and the temperature of the shed can increase by 3-4°C. In addition, laying silver-gray film on the ground can also increase the light intensity between plants. Six, do a good job of plant finishing. Timely pruning, hiccups, vines, old leaves and other field management are conducive to ventilation in the shed.
Gaffer Tape
Gaffer tape introduction
1. Material
Our gaffer tape is based on premium grade cloth fabric, combined with matt polyethylene, coated with synthetic rubber adhesive or natural rubber adhesive.
2. Features
Our Gaffer tape has following features:
a. Strong adhesion, we coated with high quality imported glue.
b. Heavy duty, it is made from strong material, thickness reaches 250micron, 270micron and 300micron.
c. Matt surface, non reflective.
d. No residue when removal.
e. Different colors for choosing. We have black, orange, pink, apple green, other colors also can be customized.
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Kunshan Jieyudeng Intelligent Technology Co., Ltd. , https://www.yuhuanptapes.com
