Cultivation techniques of cucumber
Carry out soil preparation
Soil preparation and fertilization: 5 cubic meters of organic fertilizer, 25 to 30 kilograms of calcium superphosphate or 0/0 to 0/5 kilograms of diammonium phosphate (5 kilograms of calcium superphosphate per cubic meter and 2 to 3 kilograms of diammonium phosphate per cubic meter). Before planting, plough the border, the width of the border is 1.2m, and the height is above 15cm, and cover it with plastic film.
Field planting
Determination of planting period: plant as soon as possible under the premise of ensuring that it will not be frozen after planting. Chengde area is generally planted at the end of April and the beginning of May. Temperature index requirements: the minimum temperature at night is higher than 5℃, and the soil temperature at 0 ~ 10cm is higher than 12℃. Cucumber in autumn dew field adopts direct seeding method.
Planting density: 4,000-4,500 plants/mu, planted in large and small rows, with small row spacing of 40 cm, large row spacing of 80 cm, and plant spacing of 25-30 cm, and planted by dark water method.
operate
Tea house. Transplanting should be done as soon as possible after transplanting, and the seedlings can be pulled out from the wind. In the tea nail, the flower stand or herringbone stand can be used, which is about 8 ~ 10cm away from the root.
Tie the vines. Use the "8" character system to hold the vines to prevent them from wearing and sagging. Every two or three knots, it should be played in the afternoon. The stems and vines are easy to break in the morning, so the tightness of the vines should be restrained. For plants with great growth potential, tie them properly to make the growing points highly consistent.
Trim and trim. The main vine should remove all the lateral branches, and the lateral vine should leave one or two leaves behind the melon to pinch the tip and destroy all the tendrils. When the stem exceeds the frame head, pinch the tip in time to promote the growth of the lower melon, or twist the tip to inhibit the growth of the upper melon.
Fertilizer and water management. Timely watering and intertillage, the amount and frequency of watering depend on the weather and growth period. Irrigation with slow seedling water 5-7 days after planting; Control water, intertillage and squat seedlings before sitting on melons; When the root melon grows to 10 ~ 12cm, water it to promote the melon; Water every 5 to 7 days during the fruiting period. The principle of topdressing is light before heavy, with a small amount for many times, so as to make the melon fertilizer topdressing after the root melon is seated, and then irrigate the melon fertilizer after the root melon is harvested. Advocate the use of organic fertilizer topdressing.