Cultivating cucumbers in greenhouses often produces deformed fruits such as pointed nose, big belly, slender waist, elbow and so on, affecting commodity performance and reducing economic benefits. To prevent the production of deformed cucumbers in the greenhouse, the following measures can be taken: Control the temperature The temperature in the shed must be kept above 15°C. Rational fertilization applies base fertilizer, organic fertilizer and phosphorus and potassium fertilizers. Applying a small number of methods to top-dressing, strictly control the amount of nitrogen fertilizer to prevent plant growth. In the later period of fertility, spraying 0.2% potassium dihydrogen phosphate and 3,000-4000 times 802 mixed solution 3-4 times to prevent premature aging and enhance stamina. Reasonably watering on sunny days should pay attention to watering to prevent water shortage. To control the amount of watering watering, especially in the fruit expansion period should not be excessive watering. Strengthen the prevention and control of diseases and pests Cucumber downy mildew, disease, and gray mold disease, etc., can be applied to the method of applying aerosol, do not increase the humidity inside the shed, prevent disease more thoroughly. Use 45% chlorothalonil smoke agent per acre 250 grams, points distributed in the shed at a safe place, in the evening from the inside out one by one after the cigarette smoke closed smoke, generally 7 to 10 days cast 1 time, use 2-3 Times. For aphids, whitefly can be sprayed with 10% imidacloprid wettable powder, but also can use 22% dichlorvos smoke smoke. In addition, it is necessary to promptly remove the deformed fruit so that the nutritional supply can develop a normal melon strip. Source: Tianjin Agricultural Science and Technology Information Network Contributor: Tianjin Plant Protection and Quarantine Station
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