1. Sowing time and variety: Jinchun and Jinza series, which are resistant to high temperature and disease resistance. Sowing was carried out in mid-April.
2. Breeding method: In the first ten days of April, the leeward sunny land is selected as a north-south pit-type seedbed, which is 10 meters long, 2 meters wide and 1 meter deep. The seedling soil is selected without salt and alkali, and there is no weed. The field soil and the decomposed organic fertilizer (pigtail fertilizer) which have not been planted are mixed in a ratio of 7:3 and filled into nutrient mash for use.
3. Seed treatment: soak in hot water at 55 °C for 10 minutes to 15 minutes, soak seeds for 2 hours to 3 hours, remove the mucus on the seed coat, and then remove and drain at 25 ° C ~ 30 ° C for 2 days to germinate .
4. Sowing: Pour the bottom water before sowing. After the water seeps, it can be planted. Seeds are laid flat and the shoot ends are facing down. The cover soil is 2cm thick, and then covered with the film to keep warm. The pit-type seedbed is covered with agricultural film and covered with straw curtains at night. Keep the membrane surface clean during the day to facilitate light and heat storage.
5. Temperature management: Cucumber seedling period, through the uncovering of the straw curtain to maintain 8 hours of sunshine during the day, to promote the differentiation of cucumber female flowers. Sowing to the emergence stage, try to raise the temperature of the seedbed, and cover the straw curtains at night. The daytime temperature of the nursery bed is maintained at 25 ° C ~ 30 ° C, and maintained at 15 ° C ~ 20 ° C at night. After the seedlings begin to arch, the mulch film is removed in time to prevent roasting buds. After 80% of the seedlings are out, the small ventilation is carried out to reduce the temperature of the seedbed and prevent the lengthening. Before the emergence of the first true leaf of cucumber, it is necessary to reduce the night temperature and prevent the cucumber from pulling the leg. After the cucumber two leaves, the local temperature rises quickly, and the temperature of the seedbed is strictly controlled. The daytime temperature is maintained at 22 °C ~ 25 °C, and the nighttime temperature is maintained at 12 °C ~ 15 °C. 5 days to 7 days before planting, the agricultural film was removed during the day, and the grass curtain was gradually covered at night to perform low-temperature refining. The daytime temperature was maintained at 18 °C ~ 20 °C, and at night 8 °C.
6. Moisture management: Cucumber grows fast, the leaf area is large, but the root system is weak, the transpiration is strong and the water absorption is weak. Therefore, the cucumber seedling period should pay attention to the supply of water, so that the cucumber seedbed is in a humid state. Fill the bottom water before sowing, and about 10 days after the sowing of the cucumber, depending on the seedling bed, pour a water. After the cucumber 3 leaves are one heart, as the ground temperature rises, water is poured, but the amount of water is small each time.
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