Some cucumber growers have blindly increased the amount of pods and leaves in order to obtain high yields. This “predatory†plant nutrients, leading to the general growth weakness, yellowing of leaves, shortening of melon strips, and upward movement of melon segments in the late growth stage of cucumbers. In other cases, the "shut-down" phenomenon of melon topping occurs in severe cases. If you do not strengthen management, the loss is quite serious.
"Stop" reason
Stay too much melon. In order to increase the output, the farmers often take improper measures. All the melons that can sit are left, and the excess female flowers are not removed.
Harvesting is not timely. Due to the unstable price of guaranties, the vegetable growers have to wait for high prices and leave the melons that have already been picked on the melon pods, causing "falling lice" and excessive consumption of nutrients in the plants.
Improper fertilization. Many vegetable farmers fertilize the phenomenon of “multiple, chaotic, and miscellaneousâ€. In particular, the excessive use of compound fertilizer causes the concentration of soil solution to be too high, causing damage to the roots, weakening the absorption capacity and affecting the normal growth of the plant.
Overdose. The application interval is too short, the concentration is too high, and it is easy to form phytotoxicity, resulting in plant leaf shrinkage and photosynthesis decline.
Improper watering. When watering, the weather conditions were not noticed. After watering, the sky was overcast, causing the roots of the cucumbers to grow, which inhibited the growth of the roots and affected the growth of the shoots.
Precaution
Adjust the plants. When cucumbers fall, they cannot fall too low once, and the plants are maintained at a height of about 1.5 meters, ensuring that there are more than 15 functional leaves on the plants. For more plants sitting melon, to be properly sparse, not visible melon stay, otherwise it is easy to cause the middle and late "shut down." The yellow leaves at the bottom should be removed in time to reduce nutrient consumption.
Increase lighting. Even after the sunny days can not suddenly suddenly uncover the grasshopper, should explode flower buds, so as not to cause flash seedlings.
Fertilizer management. In low-temperature and low-light weather, watering can not be too diligent and flood irrigation is not allowed. Note that after watering, wait until the temperature in the shed increases to 30°C before releasing the air, and the air outlet should be small to large. Do not blow the air at one time to avoid flashing. Fertilizers are flushed with water and fertilizers containing humic acid or amino acids that are easily absorbed by cucumbers should be used. The amount of one-time use should not be excessive.
Prevent disease. Cucumbers in greenhouses are susceptible to downy mildew, brown spot disease, gray mold, and bacterial keratopathies. For these diseases, we must adhere to the prevention-based, comprehensive prevention and control approach to ensure that there are no susceptible plants in the shed. When using drugs, the concentration should be strictly controlled. Do not mix three or five kinds of pesticides to reduce the occurrence of phytotoxicity.
Soybean lecithin is a natural substance that is derived from soybeans. It is a type of phospholipid, which is a molecule that is composed of two fatty acids, a phosphate group, and a nitrogen-containing base.
Soybean Lecithin,Feed Supplement Soy Lecithin Powder,Professional Soybean Lecithin,Organic Soy Lecithin Powder
Jiangsu Chenwei Biology and Technology Co. LTD , https://www.cwsoybean.com