When is the best planting time for cucumber?

Cucumber is rich in nutrition and contains all kinds of vitamins needed by human body, so it can often be seen at the dinner table, and the prospect of planting cucumber is also quite good. Generally speaking, cucumber can be planted in1-March and June-August, and germination needs to be accelerated before sowing. Let's be specific.

1. It is more suitable to choose1-March or June-August as the planting time. However, due to different varieties and regions, the specific planting time is also different. In addition, the sowing time should be determined according to the local temperature. During June and August, cucumber can be planted 70 days before the first frost, and the survival rate of cucumber can be effectively improved by keeping the temperature at 25 degrees Celsius during the day and 16 degrees Celsius at night and the soil temperature at about 22 degrees Celsius.

2. Plot selection The plot where cucumbers are planted should be a plot where melons have not been planted for at least two years, the pH value is 6.5~7.5, the irrigation and drainage are convenient, and the soil is fertile. In the case of paddy-upland rotation, the soil should be dug in June+10/October, 5438, and winter crops should be planted in one season, and cucumbers should be planted in the next spring.

3. Soaking seeds before sowing to accelerate germination, and accelerating germination of cucumber seeds can shorten seedling stage. The specific operation is to soak the seeds in warm water at 55 degrees Celsius for about 10 minute, while stirring constantly, then soak them in clean water at 25 degrees Celsius for 8 hours, take them out to dry, and finally put them in an environment at 27-30 degrees Celsius for germination.

4. Cucumber seeds after sowing and emergence can be raised in seedling cups or seedbeds, and will germinate in two days. The seedlings can be planted after half a month of growth, and the time is chosen in the sunny evening. Water the seedlings once before raising them. Don't hurt the root system when raising seedlings. Keep the soil on the root system to prevent root system damage. When melon seedlings grow, water and fertilizer should be properly controlled to prevent white growth. It is necessary to control pests and diseases at seedling stage. Rhizoctonia solani and damping-off are common diseases at seedling stage, which can be controlled by metalaxyl manganese zinc and carbendazim. High-efficiency cypermethrin to control the occurrence of melon silk moth.

5. Choose a place with fertile soil and convenient drainage for planting, and apply about 2000 kilograms of decomposed farmyard manure per mu, and mix the soil and fertilizer evenly. Then, planting holes were made, the spacing between each hole was 30 cm, and the planting holes were slightly larger than the roots of seedlings. Planting should be carried out in sunny afternoon, covered with fine soil and watered. In addition, it can be covered with a dark plastic film, which can not only keep the temperature and humidity of the soil, but also reduce the growth of weeds.

6. Fertilizer and water management When applying base fertilizer, 30 kilograms of calcium superphosphate should be added in addition to the decomposed organic fertilizer. When the seedlings grow 2~3 true leaves, topdressing should be done once a week, and urea 10 kg should be applied per mu. Pay attention to the concentration of fertilizer when applying fertilizer, because the absorption capacity of cucumber root system is poor, and the principle of applying thin fertilizer frequently should be observed in topdressing to prevent root burning. The temperature is high in summer and autumn, and plants grow vigorously. Therefore, phosphorus and potassium fertilizer should be applied again to prevent excessive growth and premature aging. When the water demand increases during flowering and fruiting, water it once a day, and water it every 3~5 days when the weather is dry. Drainage and flood prevention should be done well in rainy season.

7. When tendrils appear on vines and whole branches, build vines with bamboo strips. Draw vines every three days to make them evenly distributed. If the variety is the fruit of the main vine, pruning is not needed, and the main side vine or side vine should be trimmed at the top.

8. Picking When the cucumber skin changes from dark green to bright green and shiny, and the buds do not fall off, it is best to pick it at this time. It takes 55 days from sowing to first harvest in spring, and 35 days in summer and autumn. The first crop of melons should be harvested as soon as possible to avoid affecting the growth of subsequent melons, leading to premature decline of deformed melons or plants and affecting yield.