Detailed Explanation of Cucumber Planting Time and Cultivation Technical Points

Cucumber is a green vegetable, rich in certain nutrients, is a low-fat vegetable, and is also very suitable for people who are trying to lose weight. Cucumber is grown in many parts of our country, so when is cucumber generally planted? What are the key cultivation technical points?

1. When is cucumber generally planted?

1. Sowing time for spring cucumber: The sowing period for spring cucumber is determined by the planting period. The suitable calendar seedling age at planting is 40-50 days, and the physiological seedling age is four true leaves and one heart. If calculated by calendar seedling age, sow 40-50 days before planting. The length of physiological seedling age is related to the seedling raising method: 50-55 days when using a cold frame or solar greenhouse for seedling raising; 45-50 days when using a heated greenhouse for seedling raising; 45 days when using an electric heating wire greenhouse for seedling raising. Therefore, different seedling raising methods mean different sowing times. Practice has proved that rapid seedling raising not only saves time, but also produces seedlings quickly and robustly, with high early yield. Where conditions permit, rapid seedling raising should be used as much as possible.

2. Autumn cucumber cultivation refers to cultivation that ends harvesting before the first frost in areas with frost, while in areas without frost year-round it refers to cucumbers that are marketed in autumn after summer cucumbers are pulled up. The growth period of autumn cucumber is only 80-90 days, and it can be cultivated directly or raised as seedlings and transplanted, produced in open fields or greenhouses.

Autumn cucumber is generally sown about 70 days before Frost's Descent, and seedling transplanting can be carried out 7-10 days earlier. Because the seedling stage and early growth stage are in the high-temperature and rainy season, autumn cucumber has severe pests and diseases, and the yield is also relatively low.

2. What are the key cultivation technical points for cucumber?

1. Selection of cultivation environment

Choose sandy loam or loam that is convenient for drainage and irrigation, has a relatively low groundwater level, and has deep, fertile soil. In perennial vegetable fields, implement 3-4 years of crop rotation under the conditions of applying traditional farmyard manure and deep plowing and sun-drying the soil.

What are the key points for high-yield cucumber cultivation? Key technical points for high-quality and high-yield cucumber cultivation

2. Key technical points for open-field cultivation

Land preparation: In winter, deeply plow the soil 7-9 cun, and before planting apply 4000-5000 kg of decomposed farmyard manure per mu, and mix it fully with the soil through deep plowing.

Lifting seedlings with soil: One day before transplanting, water enough to lift the seedlings, and transplant with soil.

Planting period: Open-field cultivation in the field generally requires seedling raising one season later (15-20 days) than plastic film cultivation, with a seedling age of about 40 days, and planting in mid-to-late March.

Planting specifications: Open beds and raise ridges at 3.6-4.2 chi, with a ditch depth of 6 cun, plant double rows, with single plants spaced 8-9 cun apart and double plants spaced 1.2-1.5 chi apart.

Topdressing: Apply fertilizer 1-2 times promptly when the root cucumber appears. After harvesting begins, fertilize once a week. During the full fruit period, topdress once every 2-3 harvests. In the middle and late stages, pay attention to foliar topdressing to prevent premature aging.

Vine retention: In addition to the main vine, cucumber generally retains 2-3 robust side vines, and the excess ones are removed. The vines can be evenly arranged in the field in the same direction to reduce overlapping and shading.

Trellising, vine tying, and pinching: After cucumber vines are lowered, in order to increase early yield, open-field trellising and greenhouse vine tying are mostly used to achieve high-density planting. Immediately after vine growth begins, set up trellises and tie the vines, and then tie them once every 3-5 nodes. Nylon rope hanging for vines can also be used. For varieties that bear fruit on the main vine, pinching may not be needed or may be done after the trellis is full; for varieties that bear fruit on side vines, pinch at the 4-5 leaf stage, retain 2-3 side vines for fruiting, and pinch after the trellis is full; for varieties that bear fruit on both the main vine and side vines, pinch after the main vine fills the trellis, and after fruit appears on side vines, retain one leaf and pinch. Excess male flowers, tendrils, and old yellow leaves on the lower part of the plant should be removed promptly. After the cucumbers on the lower part of the plant are harvested, lower the rope promptly and remove diseased leaves, residual leaves, and old yellow leaves at the base to enhance ventilation and light penetration.