When do cucumbers usually grow? What are the key points of cultivation techniques?

Cucumber is a green vegetable, rich in certain nutrients, is a low-fat vegetable, but also very suitable for dieters. Cucumbers are planted in many places in our country, so when do cucumbers usually be planted? What are the key points of cultivation techniques?

When do cucumbers usually be planted?

1. The sowing time of spring cucumber: the sowing time of spring cucumber is determined according to the planting date, the suitable calendar seedling age is 40-50 days, and the physiological seedling age is four leaves. If the seedling age is calculated according to the calendar, the seeds will be sown 40-50 days before planting. The age of physiological seedlings is related to the method of raising seedlings. It takes 50-55 days to raise seedlings in sunny beds or solar greenhouse, 45-50 days in heating greenhouse and 45 days in electric hotline greenhouse. Therefore, the sowing time is also different with different seedling raising methods. Practice has proved that rapid seedling raising not only saves time, but also emerges quickly and thrives, and the early yield is high. Where there are conditions, try to use rapid seedling breeding.

2. The cultivation of autumn cucumber is only in the frost-free area, which refers to the end of harvest before the first frost, while in the frost-free area, it is listed in summer cucumber seedling pulling in autumn. The growth period of autumn cucumber is only 80-90 days, so it can be cultivated directly or transplanting seedlings. Open field or greenhouse production.

Autumn cucumber is generally sown about 70 days before Frosts Descent, and seedling transplanting can be carried out 7-10 days in advance. Because the seedling stage and early growth stage are in the high temperature and rainy season, the diseases and insect pests of autumn cucumber are serious and the yield is low.

Second, what are the key points of cucumber cultivation techniques?

1. Selection of cultivation environment.

Choose sandy loam or loam with convenient drainage and irrigation, low groundwater level, deep and fertile soil layer. Under the condition of applying traditional farm manure and deep-ploughing Kang soil, the vegetable field has been rotated for 3-4 years.

What are the key points of high-yield cultivation of cucumber? Key points of cultivation techniques for High quality and High yield of Cucumber

2. Key points of cultivation techniques in open field.

Land preparation: turn the soil 7 inches deep in winter, apply 4000-5000 kg of rotten farm manure per mu before planting, and fully mix with the soil through deep ploughing.

Raising seedlings with mud: the day before transplanting, pour enough water to raise seedlings and transplant with soil.

Planting period: field cultivation is generally delayed than plastic film cultivation for one season (15-20 days). The seedling age is about 40 days, and it is planted in mid-late March.

Planting specifications: 3.6-4.2-foot ridging, groove depth 6 inches, double-row, single plant retrogression 8-9-inch, double-plant retrogression 1.2-1.5 feet.

Topdressing: fertilize 1-2 times in time when root melon appears, once a week after harvest, once every 2-3 times in full fruit period, and pay attention to extra-root topdressing to prevent premature senescence in the middle and later stage.

Remaining vines: in addition to the main vines, cucumbers generally retain 2 or 3 strong lateral vines, and the redundant ones are removed. The vines can be evenly arranged in the same direction in the field to reduce overlap and shade.

Erection, vine binding, heart picking: after cucumber falling vines, in order to improve the early yield, open field shelves and greenhouse vines are often used to achieve high density planting. Immediately after drawing the vine, set up the frame to tie the vine, and then tie it every 3-5 knots, you can also use nylon rope to hang the vine. The varieties with main vines can not pick the heart or after the rack is full; the varieties with side vines will pick the heart at 4-5 leaves, leaving 2-3 side vines and picking the heart after the rack is full; the varieties with main vines will pick out the heart after the main vine is full, and a leaf will be left after seeing the melon on the side vine, and the excessive male flowers, tendrils and the old yellow leaves in the lower part of the plant should be knocked out in time. After harvesting the lower part of the plant, the rope should be lowered in time, and the diseased leaves, residual leaves and old yellow leaves at the base should be removed to enhance ventilation and light transmittance.