In summer, due to high temperature and rain, and the outbreak of diseases and insect pests, the production of cucumbers in summer and autumn has been seriously affected. After several years of production practices, we have concluded a set of high-yielding technologies suitable for cultivation of cucumbers in summer and autumn. Now we introduce them as follows. First, the use of good-quality cucumbers in open-field cultivation in summer and autumn should be based on heat-resistant, disease-resistant varieties, and can choose Jinchun 4, Jin Za 2 and Xiafeng. Second, soil preparation, fertilization, and hoeing Because summer is rainy, the fertilizer is easy to lose, so the organic fertilizer should be re-applied. Before the site preparation, 667m2 is used to make rot 4000 to 5000kg. The site preparation should not be deep, and 15cm or so is appropriate, so as to avoid deep plowing. After the site preparation, we do it. Summer and autumn cucumber cultivation must use a small sorghum or high ridge, can not be used to avoid suffering. The method used to do the tricks is: 1. The small stilts are 50cm wide, 20cm high and 70cm wide. Two rows of cucumbers were planted on both sides of a small sorghum with a plant spacing of 20 to 25 cm. 2. The high ridges should be made of sorghum first, with a width of 70cm and a width of 50cm. Then a small ditch with a depth of about 20cm should be opened in the middle of the sorghum. The seeds can be sown on the inside of the ditch after watering in the ditch. While doing the tricks, you should also do a good job of draining in advance to prepare for drainage after the rain. Third, the sowing time can be planted in accordance with the time of the previous crop cultivation time in mid-June to early July. More use of live broadcast, but also transplanting seedlings. As the high-temperature summer melon seedlings are weak, they can be planted properly. Usually, 667 m2 is planted with 5000-5500 strains. Fourth, field management 1. Dingmiao fill seedlings seedlings grow leaves when the beginning of seedlings, make up seedlings. In summer, due to heavy rain and pests, Dingmiao should not be too late to avoid shortage of seedlings. Seedlings grow to 3 to 4 true leaves when Dingmiao. 2. After cultivating and weeding, shallow medlar cultivation should be carried out to promote seedling rooting and prevent leggy. Before squashing, cultivating many times, the focus is on weeding. 3. Drainage After the sowing is finished, it is necessary to rectify the drainage ditch, reinforce the channels, and remove debris from the ditch. Once it is changed, open the drainage mouth and remove the accumulated water in time of heavy rain. 4. Top-dressing watering cucumbers in summer and autumn, should pay special attention to flood prevention. Watering depends on the days and places to be flexible. The seedling stage can be applied with a little chemical fertilizer to promote seedling growth. After the melon seedling is grown, it is usually topdressed once every 10 to 15 days, and each time 667m2 is applied with 10~15kg of nitrogen, phosphorus and potassium compound fertilizer. Fruit and water should be sufficient during the period of fruiting. After the “summer heatâ€, the weather turned cold, and foliar spray of 0.2% potassium dihydrogen phosphate or 0.1% boric acid solution can be sprayed to prevent mellow melon. 5. Inset, pruning, binding Mantou Dingmiao immediately after watering insert frame, and combined binding vines for pruning, summer and autumn varieties are mostly side vines, the base side vines do not stay, the upper side of the lateral vine can leave as much as possible to leave a few leaves topping. V. Prevention of Diseases and Insect Pests Diseases and insect pests in summer and autumn are more serious and harmful, and they should be regularly sprayed and controlled. Diseases mainly include downy mildew, powdery mildew, anthracnose, and keratopathies. Downy mildew can be used as 600 to 800 times of DuPont Kelu wettable powder; powdery mildew can be used as 15% of Triadimefon WP 1500 times; anthrax. Disease can be used 50% anthrax Fumei WP 500 times; bacterial angular spot can be used 30% DT fungicide 500 times spray control. Insect pests mainly include aphids and aphids, and are sprayed with 40% dimethoate EC 1000 times or 20% EFOT 2 1500 times. 6. It takes only 40 to 50 days to harvest high-temperature cucumber from summer to autumn in the autumn and winter. After the melons grew, the weather was gradually cool and the harvesting time was not strict.
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