How to cultivate cucumber? Huinong.com has many planting techniques related to cucumber cultivation. I don't know which one is the most suitable for you. Today, Xiaobian will bring you a new protective plan for cucumber pollution-free cultivation technology for reference! 1 variety The variety is required to be resistant to low temperature, low light, strong growth potential, disease resistance, good fruit formation, not easy to melon, high yield, to adapt to the low temperature and low light environment in winter and early spring. Suitable varieties include Jinchun series, Jinlu series, Jinyou series, and New Century. 2 nursery 2.1 seedling methods Grafting seedlings are supported by abutting techniques. 2.2 Sowing period Autumn and winter crickets are generally seeded and planted in late August to early September, and planted in late September; wintering crickets are generally grafted in the greenhouse in mid-October, seedling age 35 days; winter spring crickets are generally sown from late November to mid-December, seedlings 35-40 days old. 2.3 soaking seeds, germination and sowing 2.3.1 Seeding rate: 150 grams of cucumber seed, 1500 grams of black seed pumpkin. 2.3.2 Soaking seeds: soak the seeds with warm soup, that is, keep the temperature at 55 °C for 10-15 minutes, the water consumption is 5-6 times the amount of seeds, and stir constantly while soaking seeds. After that, wait until the water temperature drops to room temperature and then dip for 6-7 hours, rinse with clean water and set aside. 2.3.3 germination: germination at 28-30 ° C (preferably with an incubator). 2.3.4 Sowing: Pouring the bottom water before sowing, the cucumber is 3-5 days earlier than the rootstock. Generally, 13-14 days after sowing, the cotyledons of cucumber are flattened, and after the true leaves are spit, they can be docked. 2.4 Management after grafting 2.4.1 Temperature: After 1-3 days, the shed will remain at 25-28 °C during the day and 17-20 °C during the night. After 4 days, the temperature was lowered to 22-26 ° C during the day, 14-17 ° C during the night, and the small arch shed was removed 7-8 days after grafting. 2.4.2 Humidity: After 1-3 days, buckle the small shed and spray water to keep the relative humidity of the air in the shed at about 95%. After 4 days, the relative humidity of the air should be kept at about 80%. It is generally not watered before planting. 2.4.3 shading: In order to reduce the transpiration and nutrient consumption of the plants, the whole day is blocked for the first 3 days after the connection (no shading on cloudy days). On the 4th-5th day, the light is blocked from 10:00 am to 3:00 pm, and the rest of the time is not blocked. Remove the sunshade on days 6-7 and see the light all day. Conditional shade nets can be used. 2.4.4 Root-cutting: The seedlings of the abutment should be cut off from the roots of the cucumber 10-12 days after the connection. It should be carried out in the evening, and it should be properly shaded for 2-3 days after cutting. New shoots and roots of rootstocks should be removed in time. After rooting, it grows in the seedbed for more than 10 days, allowing it to fully see the light, keeping it at around 25 °C during the day and not less than 10 °C at night. You can colonize by choosing sunny days. 3 colonization 3.1 Preparation before planting: Before planting, apply 1000kg of fully decomposed organic fertilizer, 500kg of extruded chicken manure, deep-turning soil 50-60cm, using small sorghum, and under-film cultivation. 3.2 Planting density: 2800-3000 plants/mu. 4 Water and fertilizer management 4.1 Irrigation: After planting water, planting, after slowing down the seedlings, when the water is insufficient, make a slow watering of the seedlings. After slowing down the seedlings, try to control the water before harvesting the roots, so that the roots develop deeper and cultivate strong seedlings. After harvesting the root melon, it is necessary to ensure the water supply, different seasons, different growth periods, and the watering interval is different from the watering. Take the melon period as an example, the water supply is 10-15 days in the low temperature season; when the temperature is high, the water supply is 2-3 days; at normal temperature, the water supply is 5-7 days. Under-film submerged irrigation technology. 4.2 top dressing On the basis of applying organic fertilizer, fertilization is based on the characteristics of fertilizer required for different growth stages of cucumber and the target yield. Generally, no fertilization is required before harvesting, and the formula fertilizer is chased once in the early period of 20-30 days, and the formula fertilizer is chased once in the middle and late 10-15 days. In the early stage, with the irrigation, the fertilizer is dissolved in the water and poured into the dark ditch with water, and it is applied to the big line during the period of the melon, and then watered, 10-15kg each time. Foliar spray can also be applied during the melon period. It can be sprayed with 0.2-0.3% potassium dihydrogen phosphate + 0.3-0.5% urea + 0.6-0.7% sucrose solution once every 5-7 days. When most of the plants enter the senescence period, the root absorption capacity is reduced, and the topdressing can be stopped. 4.3 Carbon Dioxide Fertilization: Apply in severe winter and early spring. 30-50 minutes after sunrise, cast 30 minutes before the release of the wind, it should not be cast on cloudy days to prevent the seedlings from growing. 5 temperature control The environmental temperature span of the cucumber in the protected season is relatively large. 5.1 autumn and winter temperature control After planting and slowing down the seedlings, it has entered the beginning of October, the temperature began to decline, and the film was buckled in the middle of October. After the buckle, the room temperature was high and the humidity was high. It was necessary to pay attention to the wind and prevent the high temperature from harming. Generally, it is kept at 25-30 °C on sunny days, 13-15 °C at night, 20-22 °C during cloudy days, and 10-13 °C during nighttime. Keep the temperature difference above 10 °C at least for staying up late. Frost begins to appear in the evening of October, and the grass must be gradually covered. Plants should control the night temperature before entering the melon period to prevent prolonged melons. After the winter, the temperature will drop rapidly and the sunshine will be short. It is necessary to extend the time of seeing light as soon as possible. From December to January of the next year, enter the coldest season of the year, pay attention to insulation. 5.2 Overwinter temperature management After slow seedlings, the first is cultivating loose soil to increase soil permeability and increase soil temperature. Before the root melon is seated, increase the temperature difference between day and night and implement temperature management. During the day, the wind is over 30 °C, and the wind is lowered to 20 °C. After the wind is closed, it is lowered to 15 °C. Enter the melon period, keep 25-30 °C during the day, 15-20 °C in the first half of the night, and 13-15 °C in the middle of the night. The regulation of temperature is mainly achieved by uncovering the grasshopper and switching the air outlet. At night, the minimum temperature in the room appears to be less than 10 °C for a long time. A layer of old film should be applied to the grasshopper, and the front window should be covered with cofferdam to prevent low temperature damage. 5.3 Winter and spring temperature management After cooling the seedlings, close the air outlet and raise the room temperature. After the slow seedlings, the main target is to promote roots and strong foundations, and lay the foundation for the knots. The root promotion is firstly cultivating loose soil, increasing soil temperature, enhancing soil permeability and promoting root growth. The daytime temperature is 25-30 °C, the nighttime minimum is 10 °C, and it can't be higher than 13 °C to prevent prolongation. From the root melon, the second melon is about 15cm long, which is the early stage of the melon. The temperature during the day can be slightly higher, reaching 30-32 ° C, and it should be lowered on cloudy and night to prevent prolongation. Entering mid-March, the temperature and light conditions are suitable. In the temperature management, the highest temperature can be close to 35 °C, and the grasshoppers at night will be covered one by one. The melon period is generally 27-32 ° C in the morning, no more than 35 ° C, 25-23 ° C in the afternoon, 18-16 ° C in the night. 6 Special weather management Winter and spring seasons should be given roots and top dressing when combined with cloudy days. It can be combined with pesticides for foliar topdressing. Topdressing with 0.2% KH2PO4+0.2% urea+0.6-0.7% white sugar is good. In low temperature season, more melons grow. When the point is not stretched, on the one hand, exogenous hormones such as brassinolide are used to promote the rapid expansion of some melon strips, and on the other hand, the melons near the growth point are removed to maintain the balance between vegetative growth and reproductive growth. In the hot season, according to the external glare, it is necessary to pull the shade net to cover the sunshade, strengthen the indoor ventilation and cool down, increase the watering amount and increase the air humidity. 7 Pest Control The disease mainly pays attention to the prevention and prevention of downy mildew, gray mold, white powder, blight, vine and bacterial keratin. Commonly used agents are 72% kelu WP 600-800 times, 72.2% Plex water 600 times, 3% polyoxygen 400-800 times, 12.5% ​​禾果利 2000-3000 times, 72% downy mildew 600 times, 50% methyl thiophanate 600-800 times, 77% can kill 400 times, 72% agricultural streptomycin 4000 times, 57.6% crown bacillus 1000-1400 times. Insect pests mainly include aphids and whitefly. The main medicaments are: 25% chlorpyrifos or chlorpyrifos 2000-2500 times, 10% imidacloprid WP 1000 times, 2.5% Huifeng emulsifiable concentrate 1000 times. When the whitefly is heavier, use 20% of the dichlorvos of 0.5% per mu. In the evening, the protected area will be closed before the work is completed, which can kill the adult. The above is all about cucumber cultivation technology, I don't know if you are not interested in this technology, and your favorite friends can recommend Huonong.com to others!
The medical protective shoe cover includes a coat, an inner bladder, a strap, a velcro surface, a non-slip bottom, and a velcro female surface. There is a sock-shaped inner liner that can be removed, and the anti-slip bottom is preferably provided with an anti-slip corrugated beef tendon bottom on the bottom surface; one side of the end of the strap is provided with a hook-and-loop fastener surface, and the other side is provided with a hook-and-loop fastener surface matching the hook and loop surface; the jacket Waterproof material is preferred, and elastic fabric is preferred for the inner liner; the jacket of the utility model is made of waterproof plastic material, and the anti-slip bottom surface adopts beef tendon bottom, which is strong and durable; The utility model can be reused after cleaning and disinfection, and can be used continuously after the inner tank is cleaned and disinfected; the arrangement of the straps enables the utility model to have the protection performance exceeding that of high-top shoe covers, but it is as convenient to wear as low-top shoe covers.
Scope of application: used by medical personnel in medical institutions to prevent contact with potentially infectious patients' blood and body fluids, and play a barrier and protection role
Instructions:
Before use, unfold the isolation shoe cover, put on the shoe cover, put the socks and trousers into the isolation shoe cover, and fix it with straps. Through the actual operation of many people, it has been verified that Dongbei disposable non-woven isolation shoe covers are wear-resistant, waterproof, breathable, good isolation, and high-tube shoe covers do not slide down in one-time use.
Features
The product uses non-woven fabric or polyethylene film as the main raw material, which is cut, sewn into or thermosynthesized.
Sufficient strength and barrier properties, provided non-sterile
Product Description;
This product is made of plastic film or non-woven fabric and rubber band by hot pressing. The biggest feature is that it is easy to use, and has a wide range of applications. Different materials have different corresponding functions, such as anti-skid, anti-static and dust-proof. Moreover, the price is much cheaper than the non-disposable shoe covers, and the handling is also convenient, especially the non-woven shoe covers, which can be naturally degraded.
Scope of application:
It is generally used by medical staff, hygienic, clean places, and laboratories.
[Precautions]
1) This product is for one-time use only and will be destroyed after use.
2) This product should be stored in a well-ventilated and clean environment away from fire sources, with a relative humidity of not more than 80%, no corrosive gas, and good ventilation.
Medical Isolation Shoe Covers,Isolation Shoe Boot Covers,Non Slip Shoe Boot Cover,Medical Isolation Shoe Boot Covers Jilin Sinoscience Technology Co. LTD , https://www.contoryinstruments.com
