In the production of cucumber, there are often malformed melons such as sharp beaks, big bellies, slender waists, and curved melons. This not only affects the yield, but also seriously reduces the quality of the goods, causing great losses to the vegetable farmers. The reasons for its formation and prevention methods are summarized as follows: The cause of the formation of malformed melons differs depending on the type of cause. In general, the lack of light during the growth of cucumber, the night temperature is high, the temperature difference between day and night is small, the irrigation water is often more and less frequent, easy to appear thin waist melon. Plants grow too profusely, causing melons and mites to grow out of balance or melons to get sick. During the growing period of cucumber, the nutrition is insufficient, the plant growth is weak, or it is seriously endangered by downy mildew, aphids and other pests. During the growing period of cucumber, the temperature is high, the moisture is large, the plant grows more vigorously, the melon strip grows faster, or in the flowering stage of the cucumber, the temperature is low, the rainy weather, the ground temperature is low, etc., resulting in poor pollination, the apex of pollination first enlargement, lack of nutrition, or moisture Insufficient, melons form more seeds at the top, melons grow thicker, and melons have less or no seeds in the lower middle, and the melons grow thin, becoming large-bodied melons. Cucumbers encounter low temperatures during the flower bud differentiation period, often forming ovary or four ovary locules, and it is easy to form short malformed melon balls. Responsive measures: 1, control the temperature: in the cucumber breeding period to give the appropriate temperature, especially in the two true leaves, the temperature requirements day and night is larger, the night temperature not lower than 12 °C, so as not to form deformed ovary, grow into deformity melon. The temperature difference between day and night in the cucumber melon period needs to be larger. During the melon period, the daytime temperature should not exceed 30°C. At night, the temperature should be 16°C-18°C and the middle of the night should be 13°C-15°C. Ventilation should be strengthened to prevent over 30°C. , ensure the normal pollination and fertilization, so that the thickness of the melon strips grow well-proportioned. 2, rational fertilization: Apply enough base fertilizer, increase organic fertilizer and phosphorus and potassium fertilizers. Applying a small amount of fertilizer to the top dressing for the top dressing after harvesting. After every 10 days or so, you need to top-up the fertilizer and strictly control the amount of nitrogen fertilizer. The formula fertilization technique should be used. The ratio of NPK: 5:2:6 To prevent plant growth. In the middle and late stage, 0.2% potassium dihydrogen phosphate solution was sprayed on the leaves to prevent premature aging. 3, reasonable watering: During the growth of cucumber, especially in the melon period, can not think of cucumber fertilizer water, a lot of top dressing, irrigation, resulting in "running", but can not suddenly dry, suddenly ignorant. Sunny days should pay attention to watering to prevent water shortages. To control the amount of watering watering, especially in the fruit expansion period should not be excessive watering. 4, to strengthen the prevention of pests and diseases: the cucumber downy mildew, disease, gray mold and other diseases, in the early stages of cucumber growth, we must always pay attention to the discovery of the central diseased plants, and timely removal of diseased leaves, to prevent the expansion of the dip. Prevention and treatment of diseases can be done by spraying aerosols without increasing the humidity in the sheds and preventing them from becoming more thorough. Use 45% chlorothalonil smoke agent per acre 250 grams, points distributed in the shed, in the evening one by one from the inside to ignite the cigarette smoke after the closed shed, generally 7 to 10 days 1 time, once every 2 to 3 times. For aphids, whitefly can be sprayed with 10% imidacloprid wettable powder. In addition, it is necessary to promptly remove malformed melons so that the nutritional supply can develop normal melon strips. Http:// Liquid Bleach,Laundry Detergent Stain Removal,Stain Removal Bleach,Laundry Detergent Bleach Wuxi Keni Daily Cosmetics Co.,Ltd , https://www.kenicosmetics.com