Preventive measures are mainly to improve lighting conditions in the shed as much as possible. When planting, appropriate increase spacing, reduce shading between plants; keep the shed film clean, prevent the film surface attached to water droplets and dust; vegetables in the late growth period, when the temperature outside the greenhouse reaches 15 °C around noon, appropriate part of the shed film. According to the experiment, the use of polyester aluminum film spliced ​​into 2 meters wide, 3 meters long reflective screen, hanging in the plastic post after the upper end of the column, hanging down to the ground, the ground can increase the light intensity 40% to 43%, increase the temperature of the shed 3 °C ~ 4 °C, the ground temperature increased 1.8 °C ~ 2.9 °C, tomato yield 41.8% ~ 58.1%, fruit quality has improved; laying silver gray film or aluminum foil, can also increase the light intensity between plants, so that the fruit coloring is good, and can Prevent premature aging of the lower leaves. Wide Vermicelli,Radish Juice Vermicelli,Wolfberry Juice Vermicelli,Sweet Potato Leaf Juice Vermicelli Ningxia ZhaiXianSong Commercial and Trading Co.,Ltd. , https://www.nxupin.com
Greenhouse vegetables to prevent weak light disease
Vegetables grown in plastic greenhouses often show low light due to lack of light. The general symptoms are poor plant growth, thin stalks; thin leaves, light color, easy to yellow; poor flower bud differentiation, floral abnormalities, serious flowering and falling fruit; fruit growth is slow, light color, astringent taste, poor coloration. Low light has a certain influence on the yield and quality of vegetables.
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