The Qinzhou area of ​​Tianshui, Gansu Province is a continental semi-cold and semi-humid climate with an altitude of 1130-2700 meters. The annual average rainfall is 531 mm, the annual average temperature is 10.72 °C, and the frost-free period is about 170 days. In recent years, the construction area of ​​walnut garden in Qinzhou District of Tianshui City, Gansu Province has been expanding year by year. In order to improve the effectiveness of walnut planting construction, the management techniques of walnut construction in Qinzhou District of Tianshui, Gansu Province and the year after planting are summarized as follows for reference by fruit farmers. 1 Jianyuan 1.1 Reasonable site selection Walnut gardens should choose loam or sandy loam at an altitude of 1700 meters below sea level, with leeward sun, deep and loose soil, fertile, water-preserving and fat-retaining, and good permeability. Avoid planting walnuts on the plots of poplar and willow trees. 1.2 Planning The plan for the construction of walnuts should be based on the principle of high yield, stable production, easy operation and labor-saving cultivation per unit area. Choose the appropriate planting method according to different site conditions. 1.3 Variety selection and pollination tree configuration The variety is based on the selection of varieties that are resistant to cold, drought, pests and diseases, high yield and stable yield, uniform fruit, thin shell, good taste and high kernel yield. The suitable early varieties in Qinzhou District of Tianshui City include Xiangling, Fenghui, Luguang, Yuanlin, Zhonglin No.3, Zhonglin No.1, Liaohe No.1, Liaohe No.3, Liaohe No.5, Wen. 185, etc.; late varieties can be selected from Qingxiang, Jinlong No. 1, Jinlong No. 2, Gift No. 1, Gift No. 2, Xiluo No. 1, Xiluo No. 2, etc. Walnut is a male and female flower with the same strain and wind-borne powder. Therefore, pollination trees must be arranged when planting. The pollination variety should ensure more pollen, long flowering period, good yield and strong resistance, and the male first type and the female first type match. The ratio of the main planting variety to the pollination variety is preferably 3 to 5:1. 1.4 Seedling selection The construction of the park adopts the first-grade grafted seedlings with pure varieties, large main roots, many fibrous roots, complete roots, seedling height >60 cm, base diameter >1.2 cm, full buds >5, robust and disease-free, which can increase the survival rate of planting. The seedlings develop fast, the results are early, easy to produce, and grow neatly. 1.5 Site preparation Planting in spring should be pitted in autumn, and planting in autumn should be pitted in summer. The soil can be fully dried and matured. The pits are determined according to the row spacing. The diameter and depth of the planting pit are 0.8-1.0 m. The surface layer and the ground soil should be Stacked separately. After the planting pit is dug, it can be backfilled. When backfilling, firstly fill 20~50 kg of high-quality rotted farmyard manure, 0.5-2.0 kg of superphosphate, 0.5 kg of potassium sulphate and the upper layer of soil, and then fill it into the pit three times and put it on foot. Then, use the soil to fill the pit 15 cm above the ground to prevent the seedlings from sinking and causing the "hanging roots" dead seedlings and seedlings "wolings" to grow poorly. 1.6 Seedling treatment before planting The transplanted seedlings were firstly trimmed with roots, and the longer roots were cut 15 to 25 cm, and the roots were broken and split, and the roots with pests and dried ups were cut off. For seedlings transported from far and near, 15% bactericidal water clearing agent 500 times liquid and rooting powder 4000 times liquid soaked root for 6 to 10 hours, root-killing bacteria, and then used loess, fresh cow dung, 0.5% potassium dihydrogen phosphate Mix with water to form a thin mud root, which can promote root growth and increase the growth of new shoots. 1.7 Planting Walnuts can be planted in spring and autumn, and spring planting is good in high cold and cool areas, avoiding wintering and cold protection after autumn planting. When planting, dig a small pit of 30 to 40 cm square on the back-filled planting hole, put the seedlings vertically, fill the soil, and make the seedlings and soil marks on the seedlings be level with the ground when the seedlings are stabilized. Planting too deep or too shallow affects growth. And do a good job of watering the edge, flatten the tree plate, to be watered. 1.8 Watering Immediately after planting the seedlings, the root water is poured, and the water is poured once every 1 week, and then poured 2 to 3 times to make the roots and the soil tightly combined. The wintering and cold-proof autumn seedlings should be poured in time after the seedlings are released in spring, which is beneficial to improve the survival of the seedlings. 1.9 Protecting seedlings For the seedlings planted in autumn, the soil should be buried in the cold, and before the winter soil is frozen, a 30-cm-shaped taro-shaped earthen pillow is piled in the opposite direction of the seedling marrying interface, and the seedlings are gently bent on the soil pillow, and then 20 to 40 cm thick. The wet soil is buried and compacted, and the wet soil is filled inside. The exposed part is covered with cloth or weeds. After the soil is thawed in the spring of the second year, the temperature will rise to about 15 °C. The cold soil will be removed in time to straighten the seedlings. The hare is eating bark. For seedlings planted in spring, the seedlings can be smeared with cut-mouth spirit, paraffin emulsion, animal oil, etc., to prevent the drought and dryness of the seedlings in the spring, causing the water loss of the seedlings. 2 Management after the planting 2.1 fixed Different topography, different tree shapes, different varieties, different planting patterns have different fixed heights, and the Pingshen, the soil and water conditions are good, and the canopy height is higher in the late-season varieties; the steep slopes of the mountains, the thin layers of the soil, and the small crowns The early varieties should be low; generally 0.8 to 1.2 meters, and the intercropping of forest crops and scattered plants is generally 1.5 to 2.0 meters. Before germination in spring, reach the seedling height of the fixed height, choose a strong bud on the top of the fixed dry height for short cut, and use plastic film to wrap or paint, cut oil and other protective cuts to prevent water loss. . 2.2 film In the spring, the seedlings are watered and infiltrated, and the tree is covered with a layer of fine soil. The tree is flattened and covered in time to improve the ground temperature, collect rainwater, protect the earthworms, and promote rooting and survival. The film is centered on the planting hole, and the black or white agricultural film of 1 m×1.2 m is used. The center and the four sides are sealed with soil, and the film surface should be larger than 1 m 2 to maintain the largest lighting surface. 2.3 Checking seedlings After the seedlings are germinated, the survival condition will be checked in time. It is found that the dead seedlings and seedlings should be transplanted in time to ensure the simultaneous growth of the seedlings. 2.4 Reasonable intercropping After planting seedlings, there is no intercropping between the plants. Intercropping can be used as dwarf crops such as soybeans, potatoes, peppers, and green manure to prevent intercropping of high-stalk crops such as corn, sunflower, wheat, and rape, which require large amounts of water and high yield. 2.5 buds and sprouts After the seedlings are germinated, the germination and root germination within 40 to 60 cm from the ground are removed, which reduces nutrient consumption and saves nutrients. 2.6 Strengthening soil and fertilizer management After germination, the young trees should be watered 2 to 3 times according to the degree of drought. After the leaves are decided, the soil should be irrigated once before the soil is frozen to increase the soil water content and effectively reduce the occurrence of “suckingâ€. In June, July and August, the saplings grow vigorously, and when the weeds are mad, they should be weeded in time to improve soil permeability and promote the growth of young trees. When the new shoots grow to 5-10 cm, combined with watering 100 g of urea was applied to the plant, and 0.5 kg of Saco-rich NPK compound fertilizer was applied to each plant in the late July. The whole growth season was sprayed once every 10 to 15 days with 0.3% to 0.5% urea and 0.3% phosphoric acid. Dihydrogen potassium, 500 times amino acid liquid or other foliar fertilizer, spray 3 to 5 times; properly control water and fertilizer control in August, mildly topping the growth of the prosperous branches or use 100 times liquid PBO tips to control Prosperous, promote the full growth of branches, improve the cold resistance of young trees, and facilitate the smooth wintering of young trees. 2.7 Strengthen pest control The saplings are germinated to the leaf-expanding stage to artificially capture the black velvet chafer or spray 48% lassin 1500 times liquid; the new shoots grow to the deciduous stage, combined with foliar spray fertilizer, spraying 2-4 times 70% methyl all year round Topazin WP 800 times solution or 50% carbendazim WP 1000 times solution + 1000 times solution + 2.5% cyhalothrin emulsion 5000 times solution or 25% chlorfenapyr suspension 2000 Double liquid, or spray 1:1:200 times Bordeaux mixture alone to control walnut blight, walnut black spot, walnut brown spot, leaf-eating pests, etc., can be sprayed 2 to 4 times a year.
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.jlgkscience.com
