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Scientific plan for fertilizer and water After the autumn cucumber enters the melon period, it is usually poured once every 3 to 4 days. Take a small amount of ground water and avoid flooding. In this way, it can not only avoid droughts, insults, and fewer pests and diseases, but it can also reduce temperature and improve the microclimate in the field. Usually every time the water is poured, chase 1 fertilizer. Mu 15 to 20 kilograms of urea, with the appropriate application of available phosphorus and potassium, have a good effect of increasing production. In the event of heavy rain, pay attention to drainage and timely watering after heavy rain. After each heavy rain, combine weeding and shallow ploughing once. Pay attention to the cold and warm farmyard cloud "a burst of cool autumn wind, three white dew cream," September is in the "white dew" and "equinox" of the solar terms, the weather turns from hot to cold, cool at night, the temperature is cool, so we must strengthen warm Keep cold. In early September, the autumn cucumbers are still in fruitful stage. Several rows of windbreaks are set up in the cucumber fields, and barriers are erected on the north and west sides to reduce the invasion of white dew wind and prevent premature aging of the plants. Apply 0.5% potassium dihydrogen phosphate solution foliar fertilizer, can extend the harvest period, increase late production. In the late autumn of September, the cucumbers entered the late stage of fruiting and the number of waterings decreased accordingly. Timely control of pests and diseases of cucumber downy mildew can be used 58% metalaxyl manganese zinc 500 times, Du Bangkelu 600 times, 64% antiviral 800 times, 75% chlorothalonil control. Insect pests mainly include greenhouse whitefly, aphid, spotted fly, and tea saponin, etc., and can be used 5000 times Aketai kungfu kimchi 2000 times to 3000 times. Spray once every 7 days to achieve control effect.