Whole process of cucumber seedling raising

The whole process of cucumber seedling raising: seed selection, seedling raising and temperature management.

1. Seed selection: seed selection should ensure high quality, classify seeds, and pick out shriveled and damaged seeds. Soak the seeds in boiling water, keep the temperature above 55 degrees, take them out after about half an hour, wash them with warm water, soak them in cold water for 6-8 hours, then wrap them in wet gauze and put them in a natural environment of 25-30 degrees to accelerate germination. After 2-3 days, there is a white leak, so you can sow.

2. Seedling raising: prepare seedling tray to ensure richness, looseness and ventilation, and add organic fertilizer at the bottom. When the soil is ready, water it once and sow the seeds.

3. Temperature management: After sowing, the temperature in the nursery should be controlled at about 32℃. Generally, 1/3 seedlings will emerge three days after sowing, and the temperature will be reduced to 18-22℃ when 70% seedlings are planted, so as to avoid seedling jumping caused by high temperature weather. Seedlings must be divided in time more than 10 days after emergence, which is beneficial to the growth and development of cucumber seedlings. Generally, cucumber seedlings can be planted when they grow to 4-6 leaves.

Growth environment of cucumber

1, Temperature: Cucumber prefers warmth to cold. The suitable temperature for growth is 10 ~ 32℃. Generally, it grows best at 25 ~ 32℃ in the daytime and 15 ~ 18℃ at night. The optimum ground temperature is 20 ~ 25℃, and the lowest is about 65438 05℃. The optimum temperature difference between day and night is 10 ~ 15℃.

2. Illumination: North China varieties are not strict about the length of sunshine, and have become sunshine neutral plants, with a light saturation point of 55,000 lux and a light compensation point of 1500 lux. Most varieties grow well under short sunshine conditions of 8 ~ 65,438+065,438+0 hours.

3. Moisture: Cucumber has high yield and high water demand. The suitable soil moisture is 60% ~ 90%, but not too much at seedling stage, and the soil moisture is 60% ~ 70%. Adequate water must be supplied at fruiting stage, and the soil moisture is 80% ~ 90%. The suitable air relative humidity for cucumber is 60% ~ 90%.