The lack of fruiting or fruiting is a common problem in the production of cucumber in spring greenhouses. It is mostly caused by insufficient nutrient supply, fertilizer damage, drug damage, or improper watering. The vegetable farmer should find out the reasons and take measures according to his management situation. Corresponding preventive measures increase the number of melons and increase production. First, the cause 1. The production of Guaduo. All the melons that can sit are left, and the excess female flowers are not removed. 2. Improper fertilization. Excessive use of compound fertilizers makes the concentration of soil solution too high, weakening the absorption capacity of the roots and affecting normal plant growth. 3. Overdosing. In terms of pest control, some vegetable farmers only pay attention to the control of chemical agents, but ignore agricultural measures. The short interval between medications and the concentration of the pesticides are too high, resulting in phytotoxicity, and the use of random pesticides to cause physiology disorders in cucumber plants, preventing the growth of cucumbers. Normal growth. 4. Improper watering. Watering does not pay attention to weather conditions, nor does it analyze the pros and cons of watering according to the law of plant growth. If the watering meets the influence of adverse weather such as continuous cloudy days, low temperature and strong cold current, the ground temperature is lower than 12°C, and the relative humidity of the soil is higher than 85%, causing the roots of cucumber to be rooted, thus inhibiting the growth of roots, The impact of growth is greater. 5. Harvesting is not timely. Due to instability in the price of guarana, sometimes in order to wait for high prices, the melons that have already grown up are left on the quails, causing "falling into torrents". The result of this is to break the balance between vegetative growth and reproductive growth of the plant, which results in excess organic nutrient consumption in the plant. Second, preventive measures 1. Fallen to be appropriate. When cucumbers fall, they cannot fall too low once, and too low is not conducive to the normal growth of cucumbers. After falling, the cucumber plants are maintained at a height of 1.5 meters, ensuring that there are more than 15 functional leaves on the plants in order to ensure normal photosynthesis and maintain normal growth. 2. Pay attention to thinning and thinning fruit. For more plants sitting in the melon, should be appropriate sparse melon, cut melon can not be seen to stay, otherwise it is easy to cause break in the middle and late. The yellow leaves at the bottom should be removed in time to reduce consumption. 3. Even cloudy days to strengthen lighting management. On cloudy days, when the grasshoppers are opened near noon, if they are properly ventilated for 2 hours, they will not only reduce the shelf temperature, but will increase by 2°C. Even when the cloudy sky suddenly turns to fine, it is not possible to suddenly uncover all the grasshoppers. They should “unveil the flowers†​​so as to avoid “flashing seedlingsâ€. 4. Pay attention to fertilizer management. When the temperature is low and the light is weak, the frequency of watering can not be too diligent. Usually, the water can be poured in about 20 days, and it cannot flood the water. Also note that after watering, wait until the temperature in the shed increases to 30°C or higher before releasing the air, and the air outlet should be small to large. Do not overdo it at one time, causing “flashing seedlingsâ€. Fertilizers are usually flushed with water, and fertilizers containing humic acid or amino acids that are readily absorbed by cucumbers should be applied. The amount of one-time use should not be excessive. 5. Strengthen disease prevention and control. Because the ventilation is not timely, the shed is prone to phytotoxicity after spraying, so it is necessary to strictly control the concentration of the drug when using the drug. Do not mix three or five kinds of pesticides to reduce the occurrence of phytotoxicity. Chili Powder Mill,Chillies Paprika Powder,Chili Powder Paking Machin,Mala Chili Powder Laiwu Manhing Vegetables Fruits Corporation , https://www.manhingfood.com