In the north, the production value of various vegetables such as cucumber used in greenhouses in winter is quite high, and the output value per mu is generally 1-2 million yuan. However, in order to obtain higher yields, some vegetable farmers will adopt inappropriate measures such as increasing the amount of scorpions and melons, and thus “plundering†the plant nutrition, resulting in a weaker growing cucumber in the later period, with yellow leaves and shorter melons. The parts of melons have moved upwards, and there has been a serious phenomenon of “melon toppingâ€. If we encounter even cloudy days, it will easily lead to “resting†phenomenon. If we do not strengthen management, the losses will be very heavy. cause Too much fruit in order to increase production, farmers often take improper measures, such as those who can sit and stay melon, excess female flowers are not removed. Harvesting is not timely Due to instability in the price of guarana, sometimes the vegetable grower waits for a high price and leaves the melon already grown on it, causing him to fall. Improper fertilization In production, there are “multiple, chaotic, and miscellaneous†phenomena in fertilization by vegetable farmers. In particular, excessive application of compound fertilizer causes excessive soil solution concentration, resulting in damage to the roots, and the root tip becoming rust-colored or localized necrosis, making the roots Absorption capacity weakened, affecting normal plant growth. Overdosing of drugs During the wintering of cucumbers in sunlight greenhouses, if the environment in the greenhouse is not properly controlled, it is extremely prone to diseases. Most vegetable farmers only pay attention to chemical control, but neglect agricultural control. The short interval between application and concentration exceeds the standard seriously, resulting in phytotoxicity. The leaves of the plants become shriveled, the photosynthesis is weakened, and the hormone pesticides are randomly applied to cause the cucumber. Plant physiological disorders, so that the growing point of cucumber can not grow normally. Improper watering of vegetable farmers watering neither pays attention to weather conditions nor analyzes the pros and cons of watering according to the law of plant growth. If the water comes into contact with unfavorable weather such as continuous cloudy days, low temperatures and strong cold currents, the ground temperature is lower than 12°C, and the relative humidity of the soil is higher than 85%, it will cause the roots of cucumbers to grow, so that the growth of the roots is inhibited, and the growth of the upper part The impact is greater. Precaution Strengthen the plant to adjust the cucumber vines can not fall too low once a vine, too low is not conducive to the normal growth of cucumber. After falling, the cucumber plants were maintained at 1.5 meters, ensuring that there were more than 15 functional leaves on the plants to ensure normal photosynthesis and maintain normal growth. Even the cloudy sky strengthens the management of light. Cloudy grasses are opened when the cloudy days approaching noon. If the air is properly ventilated for another 2 hours, the temperature of the greenhouse will not only decrease but will increase by 2°C. Even after the sunny days suddenly can not suddenly all uncover the straw, it should be "exposed." Pay attention to the management of fertilizer and water during the deep winter, the temperature is low, the light is weak, watering can not be too diligent, generally about 20 days to pour water, can not flood irrigation. After the watering, wait until the temperature in the shed increases to 30°C before releasing the air. The air outlet should be small to large, and do not overdo it at one time. Fertilizer is generally flushed with water, and fertilizers containing humic acid or amino acids that are easily absorbed by cucumbers should be applied. The amount of one-time use should not be too large. Strengthen Disease Prevention and Control Cucumbers in winter are susceptible to downy mildew, brown spot disease, gray mold, and bacterial keratopathies. For these common diseases, prevention and prevention are the key measures to ensure that there are no susceptible plants in the shed. . Frozen Squid,Whole Round Squid,Round Squid,Loligo Squid ZHEJIANG EVERNEW SEAFOOD CO.,LTD , https://www.evernewseafood.com