1. Choose heat-resistant and disease-resistant varieties. The main heat-resistant varieties are Jinyan No.7, Jinza No.2, No.4, Xiafeng No.1, Xiaqing No.4, Lucucu No.9 and No.4, and Zhongnong No.8, Jinyou No.1, Zhongnong 1101, etc. .
2. Sowing at the right time. Shandong, Hebei, Tianjin and other places generally begin in late July to early August, and the growth period is generally around 100 days. The seeding density should be controlled at a line spacing of 60 cm and a plant spacing of 20 to 30 cm. It can be carried out by direct seeding and transplanting methods. From seeding to emergence, it usually takes about one week. In addition to time seedlings, 200 g of compound microbial fertilizer (600-800 times liquid) per plant is planted in the seedling stage; or soil amendments are used. 100 grams per mu) root irrigation is conducive to the early root development of cucumber, preventing the occurrence of root rot and collapse in seedling stage.
3. Scientific selection of fertilizers. In the autumn, the cucumber growth period is relatively short, so the water and fertilizer should be sufficient. The live cucumber cannot be applied to the base fertilizer in the early stage. When the cucumber is flowering and cassing, it starts to apply humic acid and fertilize it. It uses 20-40 kg per mu. After each cucumber is picked, it is combined with watering, chasing a fertilizer, not watering. . In combination with top dressing, the leaf surface should be sprayed with Harvest No. 1 and inducer, sprayed once every 10 to 15 days, and continuously sprayed 3 to 4 times, which is necessary to prevent the melon and the curved melon and increase the yield. Cucumber likes organic fertilizer. In particular, it should use a large amount of decomposed chicken manure and cow dung. It is recommended to mix 4000~5000 kg per mu, mix with 400-480 kg bio-organic fertilizer and 30 kg potassium sulfate (3×15) compound fertilizer as base fertilizer. .
4. Strengthen the management of melons. In the autumn, the cucumber has a short growth period, and the melon period is only 40 days. Therefore, it is necessary to promote the sputum in the early stage. By cultivating strong seedlings, it promotes the differentiation of flower buds. In the early stage of melon, the main vines are mainly melons, and the lateral branches of 12 or more are removed. After the waist and melons, 3 to 4 side branches should be left, and each side of the branches should be left with one leaf and one heart to achieve the effect of the main side branches and the same melon. In the late stage, the melons should be removed to remove the old leaves and diseased leaves at the bottom, reduce nutrient consumption, and ensure the growth of melons. In order to increase the number of female flowers, the growth hormone ethephon treatment can be used, the concentration should be controlled at 100ppm, and the cucumber plants should be sprayed in the morning, sprayed once every two days, and sprayed three times. Note that the concentration should not be too high. Excessive concentration is prone to flower topping and susceptibility to phytotoxicity. After spraying, the melon is obviously increased, and the fertilizer and water should be followed closely to ensure sufficient fertilizer and water to increase the yield.
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