Main points of planting technology for cucumber in greenhouse
There are novices who grow cucumbers. They don't know much about the cultivation techniques of cucumbers in greenhouses. Today, Xiaobian shares an article on the whole process of cucumber planting. I hope this article can help new growers.
I. Selection of land preparation
1. Selected fields
Cucumber is the most suitable soil growth environment, the pH is between 6.0 and 7.5. Try to choose the viscous sandy loam with rich organic matter, good irrigation and drainage, and water and fertilizer. The best pre-crop crop for cucumber planting is rice, and the field where the forehead is a melon crop should be avoided.
2, soil preparation
It is recommended to adopt a deep sorghum planting method, north-south direction, double-row planting, and the height and width of the gully can be 0.3 m X 2.0 m, and the plant spacing is 30 cm.
Second, seedling sowing
1, sowing
The planting time of cucumber should be determined according to the actual situation. Early spring is planted in January-March, and summer and autumn plants are planted in June-August. In the spring sowing, you can use the method of soaking seeds and germination to raise seedlings or covering the live film, and the summer and autumn soaking seeds can be used for live broadcast or dry seeding.
2, nursery
1 Cucumber generally adopts the method of soaking and germination, first sterilizing with warm water of about 55 degrees for 10 minutes, then soaking for about 5 hours with warm water of about 30 degrees, after washing and draining, place the seeds at a warm temperature of about 30 degrees. At the site (conditional can be used in the incubator) for moisturizing and germination, the seeds begin to germinate after about 20 hours.
2 In the early spring, the greenhouse can be used for seedling raising, and seedlings can be carried out with seedbeds or nursery cups. When two true leaves are used (about 20 days of seedling age), they should be planted, and water should be drenched before the seedlings, and soil planting should be carried out in the evening in the evening to prevent seedlings. The root is injured.
Third, fertilizer management and soil
1, base fertilizer
Adequate base fertilizer and cucumber can realize the basis of high yield and high yield. Deep ploughing and tilling can be carried out during land preparation. At the same time, 3000 kg of decomposed organic fertilizer and 30 kg of superphosphate 30 are applied as the base fertilizer per acre.
2, a top dressing
Cucumber topdressing should be carried out according to the principle of “diligence and thin applicationâ€. It can be carried out when the cucumber seedlings grow to two or three pieces, and 5 kg of urea is applied once every other week. Since cucumber is sensitive to fertilizer, try to avoid using high-concentration fertilizer. After fertilization, it should be diluted with water in time.
3, secondary topdressing
The second top dressing can be carried out in combination with cultivating and weeding in the case of cucumber tendrils, applying 30 kg of compound fertilizer per acre, 10 kg of potash, plus 20 kg of peanut bran. In addition, it is best to carry out soil topdressing after the first harvest of cucumber. Try to apply less nitrogen fertilizer and apply more phosphorus and potassium fertilizer to avoid prolonged and premature aging of cucumber.
4, watering management
Spring cucumber should control the amount of watering at the seedling stage, and need to increase the amount of watering during the flowering period. It can be poured once a day on sunny days. If the weather is dry, it is best to carry out irrigation once every three or five days.
Fourth, the frame vines and topping pruning
1, truss lead vine
Cucumbers are inserted into the "human" sub-frames to introduce vines when the tendrils appear. The vine introduction time generally begins after the tendrils appear, and the vines are introduced every 3 days or so in the sunny evening.
2, topping pruning
Whether the cucumber needs a pruning medicine depends on the species to be planted. The result of the main vine can be no pruning, the main side vine results or side vine results, need to carry out topping pruning, the side vines below eight knots are all cut off, the ninth section of the side branches can be left after three sections for topping, and the main vine can be Topping at 30 knots.
Five, cucumber falling
1. In order to make the cucumber leaves more uniform, strengthen the growth, and prolong the melon period, it is best to treat the cucumbers with vines, but to master certain essentials:
1 When the growth point of cucumber seedlings is close to the top of the shed and the leaves without stems and vines are more than 30 cm above the ground, choose a sunny afternoon to carry out the vines in a timely manner; stop watering one week before the vines to prevent disease;
2 When the vines are fallen, the old leaves and diseased leaves should be removed and brought to the outside of the shed to be burned in order to prevent the pathogen from infecting the plants and causing disease;
3 When you are falling, don't use too much force or hard pull hard. You should bend the stems and bend the stems to avoid bending hard or bending in the opposite direction to prevent the stems from breaking.
4 When vines fall, ensure that there are leaves and stems about 13 cm from the ground, and each plant has more than 20 functional leaves.
Sixth, cucumber harvesting
Spring cucumbers take about 55 days from colonization to the first harvest, while it takes only about 35 days in summer and autumn. Harvesting can be carried out 10 days after the flowering of the cucumber. In addition, it is best to take early and early harvest to avoid adverse effects on the growth and development of the subsequent melons and the growth of the plants, resulting in premature senescence of plants and the appearance of malformed melons, thus affecting yield and income.
Shaanxi Hongbaiyi Biotech Co., Ltd. , https://www.sxhongbaiyi.com