Liupanshan City is located in Guizhou, under the jurisdiction of Zhongshan District, Shuicheng County, Liuzhi County, and Pan County. The outskirts of Zhongshan District is a subtropical plateau mountain monsoon climate zone with an altitude of 1800m.
In order to solve the contradiction between supply and demand for cucumbers in autumn and winter, in recent years, according to the biological characteristics of cucumbers, we conducted trial planting and supporting technology research in Zhongshan at an altitude of 1,800 m, and explored a set of high-quality, high-yield, and high-efficiency cultivation techniques for high-cold mountain sheds in summer and autumn. The obvious economic and social benefits have been achieved and are summarized below.
1, choose suitable varieties
Due to the unique climatic conditions of high mountains, the rainfall is high, the air humidity is high, and the early-stage growth of cucumbers in summer and autumn is in a high-temperature climate and is susceptible to diseases. Therefore, varieties with strong growth vigor, resistance to powdery mildew, downy mildew, and blight disease should be selected. Research No. 7, Jinchun No. 4, Jinchun No. 2 and Jinza No. 2 etc.
2, sowing
Seed sowing in mid-May to mid-July, use live or nutrition sports seedlings, use 100g per square meter, soak seeds for 2 days before sowing, then soak in water for 4-6 hours, then soak in 15 minutes with 55°C wet water for 15 minutes. Stirring, sowing in nutrition or live shed.
3, soil preparation
Choose a land with high topography and convenient irrigation and drainage. For the land that has not been planted with melon crops beforehand, deep plowing 20-25cm, squatting for 20 days, make a sorghum with a height of 20cm, a width of 83cm and a width of 50cm; Foot-based fertilizer, the performance of the reproductive growth of the vegetative growth of cucumbers during the summer and autumn, generally 3500-5000kg per hectare of farmyard manure, 500kg of human excreta, and 50kg of compound fertilizer. Nutritional seedlings 3 leaves 1 colonization at the time of the heart, seedling period of 13 days, generally transplanted in late May to late July, 3000-3300 plants per acre. Transplantation combined with cover film simultaneously. When 3-4 true cucumber leaves are seeded, cover the mulch and leave one plant per hole.
4, cultivation and management
After the emergence of cucumbers, diligently apply Miaofei 1-2 times, promote root growth, and re-apply the fruit fertilizer during flowering results. Collect 1-2 times for each harvest and apply 500-700kg of manure per acre, every 6-7. Day spray 0.3% potassium dihydrogen phosphate once, a total of 3-4 times.
When the plants begin to pull vines, they should be framed in time, and the vines should be tied at any time according to the growth of the plants. The tendrils and male flowers should be removed in time to reduce nutrient consumption.
The water requirement during the melon period is large. The melon period is watered once every 2-3 days. The malformed melons are removed in time. The old leaves, diseased leaves and yellow leaves are removed at the late stage of the melon. When the main vine climbs to the top of the rack, it is topping and promotes multiple knots. Looking back on melons, timely harvesting will help the rapid expansion of upper melons and melons.
When 3-4 true leaves of seedlings were sprayed, 100 ml/L of ethephon was sprayed to increase the number of female flowers and increase yield.
5. Pest control
The major diseases of cucumber in summer and autumn are downy mildew, powdery mildew, and bacterial angular spot. For agricultural control, rotation is adopted, sorghum is cultivated, drains are drained in time, and phosphorus and potassium fertilizers are added. In the early stage of disease, 70% thiol is used. 500 times of Bujin 1000 times or 25% metalaxyl, or agricultural streptomycin, etc., once in 7-10 days, sprayed 2-3 times in succession; pests mainly include locusts, which can be used as large amount of 20g per mu, or 40 % Dimethoate 1000 times control.
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