Cucumber, also known as courgette (cucumber), Cucurbitaceae Cucumber, is an annual vine plant. Cucumber growth requirements for environmental conditions Temperature: Cucumber is a typical thermophilic plant with a suitable temperature of 10 to 32 °C. It is about 25 to 32 ° C during the day and 15 to 18 ° C during the night. The most suitable ground temperature is 20 to 25 ° C, and the lowest is about 15 ° C. The most suitable temperature difference between day and night is 10-15 °C. Poor photosynthesis at 35 °C, high temperature barrier at 45 °C, freezing at -2 ~ 0 °C, if low temperature refining can withstand low temperatures of 3 °C. The accumulated temperature from sowing to fruit ripening is 800 to 1000 °C. Illumination: The requirements of cucumber for the length of sunshine vary depending on the ecological environment. Generally, South China-type varieties are more sensitive to short-day sunshine, while North China-type varieties are not strict with the length of sunshine. 8 to 11 hours of short-day exposure can promote the formation of sexual organs. The light compensation point is 1500 Lux and the light saturation point is 55000 Lux. Humidity: The suitable humidity is 60% to 90% of the relative water holding capacity of the soil, 60% to 70% in the seedling stage, and 80% to 90% in the adult plants. A suitable relative humidity of the air is 60% to 80%. The ideal air humidity should be: low seedling period, high plant height; low at night and high during the day. It is as low as 60% to 70% and as high as 70% to 80%. Cucumbers are wet and afraid of drought, so they must be watered regularly to ensure normal cucumber yield and high yield. However, too much watering will cause soil compaction and water accumulation, which will affect the permeability of the soil, but will not be conducive to plant growth. Especially in the early spring, late autumn and winter seasons, when the soil temperature is low and the humidity is high, cold roots, roots and low-temperature and high-humidity diseases (such as downy mildew, gray mold, powdery mildew, etc.) are easily generated. Soil: Cucumber is suitable for cultivation in fertile soil with deep, loose and organic matter. A suitable soil pH is 5.5 to 7.2, preferably pH 6.5. Ultrasonic Cleaners,Ultrasonic Cleaner Machine,Dental Ultrasonic Cleaner Machine,Dental Distilled Water Machine Foshan Ja Suo Medical Device Co., LTD , https://www.jasuodental.com
Cucumber is suitable for planting and seedling in greenhouses in the middle and late March, and planting in the open field from the end of April to the middle of May. It can also be cultivated live from mid-May to mid-July.