In what month can cucumber be sown?

The suitable time for planting cucumber is March-April in spring, May-June in summer and July-August in autumn.

Cucumber is suitable for growing in a warm environment, so it can be sown in April-May every year. During this period, the temperature can be kept above 65438 05℃, which can improve the germination rate of cucumber after sowing. Note that the specific sowing date needs to be appropriately adjusted according to the local climate conditions.

Cucumber is suitable for growing in soil rich in organic matter. When planting cucumber, it is necessary to plow 30 ~ 40 cm of land to remove impurities and grass roots in the soil, so that the soil is softer and more breathable. After that, it is necessary to mix decomposed cake fertilizer and organic fertilizer into the soil to improve the fertility of the soil.

The germination time of cucumber is about 5 ~ 7 days. Soaking cucumber seeds before planting can accelerate germination. Planting cucumber requires loose and fertile soil with good air permeability and drainage. Cucumber likes warm environment and is not cold-resistant. Cucumber likes humidity and is not resistant to waterlogging, so it needs a lot of water in the fruiting period, so it needs to be watered in time, and it needs drainage in rainy weather.

Growth environment of cucumber

Temperature: Cucumber likes warmth, but it is not cold-resistant. 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℃. Cucumber has poor photosynthesis at high temperature of 35℃, and it is blocked at high temperature of 45℃. It freezes to death at low temperature of -2 ~ 0℃, and can withstand low temperature of 3℃ if exercising at low temperature.

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

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%. Too high air relative humidity is easy to cause diseases and reduce output.

Soil: Cucumber prefers wet to waterlogging, and prefers fat to fat, so fertile soil rich in organic matter should be selected. Generally speaking, the soil with pH between 5.5 and 7.2 is better, but pH 6.5 is the best.