A, planting time
The planting time of cucumber is usually around March-April every year, when the temperature is already warmer, higher than 5 ℃ at night, and can reach 18 ℃ during the day, suitable for the growth and development of seedlings. Different regions should also be adjusted according to the local climate, which can be earlier or later. In addition, the fall can also be planted, time more in the two months before the frost, planted too late, frost will affect its quality, or fall is a reduction in production.
Two, soak the seeds to germinate
Before planting, first give the seeds to germinate. Prepare 50 ℃ of hot water, the seeds will be put into the soaked for a few minutes, which can play a sterilization effect. Then change to warm water at 30℃ and soak for 3-4 hours. Remove and put in a wet cloth, the temperature is maintained at about 20 ℃, often spray water to keep moist, so that about two days later you can see the seeds sprouting white heads.
Three, planting method
Whether planted in the ground or potted, we must ensure that the soil is suitable. Usually use garden soil with river sand to formulate the substrate, but also to add an appropriate amount of farmyard manure as a base fertilizer, which can provide a certain amount of nutrients for the growth of cucumbers is very helpful. Sow the seeds into the soil, cover with a layer of fine soil, water in moderation, wait for about a week, you can see it germinate.
Four, transplanting
Generally when the cucumber grows to two true leaves, it is necessary to transplant it. For the early planting of dense situation, to plant them separately, a pot planted two can be. Be careful not to injure the root system when transplanting, and then water it carefully, and it usually grows back in a week. Then you have to prepare the frame, but also good water and fertilizer management.
Growth habit
1, temperature: cucumber like warm, intolerant of cold. Fertility temperature is 10 ~ 32 ℃. General daytime 25 ~ 32 ℃, 15 ~ 18 ℃ at night the best growth; optimal ground temperature of 20 ~ 25 ℃, the lowest is about 15 ℃. The optimal day and night temperature difference of 10 ~ 15 ℃. Cucumber high temperature 35 ℃ photosynthesis is poor, 45 ℃ high-temperature obstacles, low temperature -2 ~ 0 ℃ freezing, if low-temperature refining can withstand a low temperature of 3 ℃.
2, light: North China-type varieties of sunshine length requirements are not strict, has become sun-neutral plants, its light saturation point of 55,000 lux, light compensation point of 1500 lux, most varieties of 8 to 11 hours of short sunlight conditions, good growth.
3, moisture: cucumber production, water demand. Suitable soil humidity of 60% to 90%, the seedling period should not be too much water, soil humidity 60% to 70%, the result of the period must be supplied with sufficient water, soil humidity 80% to 90%. Cucumber suitable air relative humidity of 60% to 90%, air relative humidity is too large is easy to disease, resulting in reduced yield.
4, soil: cucumber like wet and do not tolerate flooding, like fertilizer and do not tolerate fertilizer, it is desirable to choose a fertile soil rich in organic matter. Generally like pH5.5 to 7.2 between the soil, but to pH 6.5 best.