High-yield cultivation technology of open field double stubble cucumber

1. Sowing date arrangement, the first crop is scheduled to be raised in late May, transplanted in mid-June, and harvested in early August; the second crop is cultivated in early July, transplanted in late August, and harvested in early October. Use a nutrition bowl to raise seedlings, sow one seed per bowl, and cover the shading net after sowing to prevent high temperature and heavy rain from affecting the emergence of seedlings.

2. Variety selection, heat-resistant, disease-resistant, high-yield varieties suitable for growth under long-day conditions, such as Jinchun No. 4, Jinza No. 2, Jinyan No. 3, and Zhongnong No. 8. The amount of seeds used per acre is generally 50 to 100 grams.

3. Fertilize the land, apply high-quality organic fertilizer 4 to 5 square meters per acre after wheat harvest, 100 to 150 kg of rotten cooked cake fertilizer, 50 to 100 kg of ternary compound fertilizer, and 2 to 3 kg of Yingdandan granules. Then use a tractor to till the soil, fertilizer, and medicine thoroughly. Make double-row high ridges every 1 ～ 1.20 meters in the field, and the ridges are 10-15 cm high. Open a ditch in the middle of the two ridges for irrigation and drainage, and then cover the ridges with black mulch to prevent rain, protect water, The purpose of weeding.

4. Timely transplanting, generally in the seedling age of about 25 days, it is appropriate to transplant with 3 to 4 leaves, 3500 to 4000 plants per acre. The second stubble cucumber was planted next to the root of the first stubble cucumber. Spray the ethephon once each at the three- and six-leaf stage of the seedlings, with a concentration of 150-200 mg / kg, taking care not to increase or decrease the amount at will.

5. Fertilizer and water management, topdressing on the basis of applying sufficient base fertilizer 2 times. After the first topdressing, 500 kg of human feces and water were added per acre to carry out the application of "small fertilizer and large water" to promote the growth of seedlings. After the second topdressing in the root melon, 30-30 kg of Huimanfeng granular fertilizer was applied per acre, and the furrow was applied deeply; in the later stage, the root topdressing was combined with spraying and disease prevention, and plant power 2003 and plant vitality were optional. Etc., you can also choose 0.2% potassium dihydrogen phosphate plus 1% urea solution for foliar spraying. In summer and autumn, attention should be paid to watering, drought resistance, and drainage. It should be carried out in the evening when watering, and no flooding should be avoided.

6. Scaffolding pruning. After the first stubble is transplanted, trestle and introduce the vine. The side vines growing on the main vines 1 to 6 sections should be removed in time. After 6 sections, a side vine is left topping topping. When the main vine is full, it will be tossed, and it will grow naturally in the later stage.

7. Controlling pests and diseases, the main pests are downy mildew, powdery mildew, aphids, melons and so on. For prevention and treatment of downy mildew, 72% gram dew wettable powder 600-800 times liquid, 75% chlorothalonil wettable powder 500-600 times liquid, or 25% metalaxyl wettable powder 800-1000 times liquid. For prevention and control of powdery mildew, 15% triazodone wettable powder 800-1000 times liquid can be used. Inhibition of aphids, melons, etc. can be used to inhibit taibao.

8. Timely harvesting, root melon should be harvested as early as possible, usually once every 2 to 3 days, and harvested once a day for sale during the fruity period.

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