The Smoothbore ventilator circuit is non-rigid tube used to convey gases or vapors between components of a breathing system. It`s mainly made of PVC material, kinking resistant. The tube is smooth inside, usually equipped with water trap. The Y or U type water trap is optional. And, it can be assembled with Anaesthesia Mask, BV filter, HMEF, Catheter mount and so on, to fit with various needs. Thus, there are different models according to the assembled accessories and tube length.
Features and benefits
1. Single use, FDA ISO approved Smoothbore Breathing Circuit,Anesthesia Ventilator Breathing Circuit,Medical Circuit Kit,Anesthesia Machine Circuit Hangzhou Trifanz Medical Device Co., Ltd , https://www.cfzmed.com
2. Choose site preparation
1. The election system is an important part of the farming system. Rotation, also known as replanting, refers to planting different kinds of crops in a certain period of time on the same plot in order to regulate soil fertility, prevent pests and diseases, and achieve high and stable yields of crops. significance. Continuous cropping results in a decline in crop yield and quality, which is not conducive to the rational use of land. Buckwheat is not a strict choice for cornices, no matter what the mouth can grow, but avoid continuous work. In order to obtain high yield of buckwheat, it is best to choose a gargle in the rotation. The better pods are beans and potatoes, which are all crops; followed by corn, wheat, vegetable gargle, these are land crops and also buckwheat. The main mouthwash.
2. Soil preparation of buckwheat is very suitable for soil preparation. As long as the climate is suitable, any soil, including those not suitable for the growth of other cereal crops, can be cultivated. However, the organic matter is rich, the structure is good, the nutrients are sufficient, and the water retention is strong. , good ventilation can produce high quality and high yield of buckwheat.
Buckwheat roots are weakly developed, cotyledons are large, and the ability of the top soil is poor, so it is not easy to unearth the whole seedlings and requires fine soil preparation. The poor quality of site preparation can easily result in the lack of seedlings and ridges and affect yield. Grasping cultivation and soil preparation is the main measure to guarantee the whole seedlings of buckwheat. After harvesting, the crop should be ploughed in time and then deep ploughed. If time permits, deep plowing is best performed after the weeds in the ground are unearthed.
The development of buckwheat root system requires that the soil has a good structure and a certain degree of porosity in order to facilitate the storage of water, nutrients and air, and the reproduction of microorganisms. Heavy clay or clay, compact structure, poor ventilation, poor drainage, rapid expansion of soil particles in the event of rain or irrigation, moisture can not infiltrate, gas can not be exchanged, once the water evaporates, the soil quickly dried up, easy to form a hard surface, not Good for buckwheat emergence and root development; sandy soil structure is loose, poor fertilizer and water conservation, low nutrient content, is also not conducive to buckwheat production; loam soil has strong ability to retain water and fertilizer, drainage is good, phosphorus and potassium are higher, suitable The growth of buckwheat has a greater potential for yield increase. Buckwheat has strong endurance to acidic soils. In alkaline soils, the growth of buckwheat is inhibited and can be planted after being improved.
The buckwheat is hi moist, but avoid excessive moisture and stagnant water. In rainy seasons and low-lying lands, especially in paddy field, buckwheat should be planted and drained.
Deep plowing is an important experience and measure for high yield cultivation of buckwheat all over China. Deep plowing can ripen the soil, thicken the mature soil layer, and at the same time improve the water, fertilizer, gas, and heat conditions in the soil, and increase the soil fertility. This will not only help preserve water and protect the soil and prevent evaporation of soil moisture, but also facilitate the germination, emergence and growth of buckwheat. Development, at the same time can reduce the harm of worms and weeds on buckwheat. Deep ploughing and soil improvement are obvious, but the depth should be appropriate. The results of studies in various regions indicate that deep plowing of buckwheat usually takes 20-25cm. Deep plowing is divided into deep plowing, deep plowing and deep plowing in autumn and winter. The long-term tillage time is long, and it receives more rainwater, which is conducive to the decomposition and accumulation of soil organic matter and the restoration of soil fertility. Buckwheat is less cultivated. It is generally based on deep plowing in spring and autumn. In the spring and autumn cultivation, we strive to cultivate early. The earlier the deep plowing time is, the more rainwater is accepted, the higher the soil moisture content is, and the longer the ripening time, the higher the soil nutrient content.
3. Fertilization Buckwheat is a crop that requires more fertilizer. To obtain high yields, sufficient fertilizer must be supplied. According to the study, for every 100kg of buckwheat grain produced, it is necessary to absorb pure nitrogen from the soil by 4.01 to 4.06kg, phosphorus 1.66 to 2.22kg, and potassium 5.21 to 8.18kg, with an absorption ratio of 1:0.41 to 0.45:1.3 to 2.02. The proportion and quantity of nitrogen, phosphorus, and potassium absorbed by buckwheat are related to soil texture, cultivation conditions, climate characteristics, and harvesting time. However, for drought-prone and cold mountainous areas, adding fertilizing materials, especially increasing nitrogen and phosphate fertilizer, is the basis for high yield of buckwheat. .
Fertilization should be based on "basal fertilizer, supplemented by seed fertilizer, supplementation by top dressing," and "mainly by organic fertilizer and supplemented by inorganic fertilizer." The amount of application should be scientifically mastered according to the ground conditions, yield indicators, fertilizer quality, planting density, species, and local climate characteristics.
1. Basal fertilizer: Before the sowing of buckwheat, the fertilizer applied to the deep layer of the soil in combination with cultivation and cultivation is also called base fertilizer. Adequate quality basal fertilizer is the basis for the high yield of buckwheat. Basal fertilizers are generally dominated by organic fertilizers and can also be combined with inorganic fertilizers. Basal fertilizer is the main fertilizer for buckwheat, which generally accounts for 50 to 60% of the total amount of fertilizer. The organic fertilizers commonly used in buckwheat production include manure, manure, and soil manure. Manure is mainly human feces and urine, which is a kind of organic fertilizer with complete nutrition. Manure is the main source of basal fertilizer, easy to decompose, and its fertilizer efficiency is fast. The effect of increasing production in the year is better than that of manure and soil ado. Base fertilizer applied to barley crops is applied in autumn, early spring and before sowing. After autumn harvest, it is combined with autumn deep ploughing of base fertilizer, which can promote the decomposition of fertilizers, and can store water, fertilize and produce high yields. Buckwheat is grown in remote alpine mountainous areas and dry lands, or as paddy crops. Farmer organic fertilizers generally do not meet the needs of buckwheat basal fertilizers. Scientific experiments and production practices have shown that combining some inorganic fertilizers as basal fertilizers can increase buckwheat production. Great advantage. The inorganic fertilizers currently used as base fertilizers are superphosphate, calcium magnesium phosphate, diammonium phosphate, ammonium nitrate, urea and dibasic calcium phosphate. Superphosphate, calcium magnesium phosphate fertilizer as the base fertilizer is best mixed with organic fertilizers after tanning. Diammonium phosphate, ammonium nitrate, urea, and dicalcium phosphate can be used as base fertilizers in conjunction with autumn deep tillage or early spring tillage, or deep sowing before sowing to increase fertilizer utilization.
2. Fertilizer: A measure of applying fertilizer to the seed at the time of sowing, using seeds before sowing, slipping fertilizer during sowing, or combining “seed coatingâ€. Fertilizer can make up for the deficiencies of basal fertilizer to meet the needs of nutrients at the early stage of buckwheat fertility and promote root development. The traditional seed fertilizer is manure, which is a centralized fertilization method that is adapted to the shortage of fertilizers. With the development of buckwheat research, the use of inorganic fertilizer as a seed fertilizer has become the main technical measure for high yield of buckwheat. The inorganic fertilizers commonly used as seed fertilizers include superphosphate, calcium magnesium phosphate fertilizer, diammonium phosphate, ammonium nitrate and urea. Cultivation of buckwheat with 30 kg of phosphate fertilizer per acre for seed fertilizer as the main technical indicators of high yield of buckwheat. Superphosphate, calcium magnesium phosphate fertilizer or diammonium phosphate as a seed fertilizer, generally mixed with buckwheat seeds, ammonium nitrate and urea as a seed fertilizer can not be directly contacted with the seeds, otherwise it is easy to "burn seedlings", so use these fertilizers to do When growing fertilizer, keep away from the seeds.
3. Dressing: Different buckwheat fertility stages have different nutrient absorption and accumulation. After blooming, it needs a large amount of nutrients. At this time, adding a certain amount of nutrient elements is of great significance to the growth of buckwheat stems and leaves, the differentiation and development of buds, and the formation of grains. Composting should also be viewed in terms of fertility and seedling quality: poor fertility, insufficient basal fertilizer and seed fertilizer, and 20 to 25 days after emergence, must be filled with topdressing before mulching; seedling growth may be robust and may not be pursued or pursued; weak seedlings Early catch Miao Fei. Fertilizer is generally suitable for quick-acting nitrogen fertilizers such as urea, the amount should not be too much, 5 to 8 kg per mu is appropriate. Places with no irrigation conditions should be selected for rainy weather. In addition, where conditions permit, the use of boron, manganese, zinc, molybdenum, copper and other trace element fertilizers for the top dressing, but also have the effect of increasing production.
4. Reasonable dense planting The factors that constitute the yield of buckwheat are mainly the number of plants per acre, the number of grains per plant, and the grain weight of 1000. All three are related to density. Proper close planting is the full and effective use of light, water, gas, heat and nutrients, coordination of the contradiction between groups and individuals, and ensuring that individuals develop robustly on the premise of maximum development of the group, so that the number of plant grains per unit area And the grain weight is maximized to achieve high yields. It can be seen that the density has a great influence on the number of grains and grain weight, and through the cultivation measures such as proper close planting and the coordination of the relationship between the yield factors, it has a significant effect on increasing the yield.
1. Sowing amount Buckwheat sowing amount is determined according to soil fertility, variety, seed germination rate, sowing method and population density. Under normal circumstances, sweet seedlings per acre sowing rate of 2.5 to 3 kg, bitter buckwheat per hectare sowing amount of 1.5 ~ 2kg is appropriate. In Aba Prefecture, the sowing amount is generally 5 kg per mu, and the bitter amount is 4 kg per mu.
Sowing amount is directly related to the yield of buckwheat. Large seeding rate, too dense seedlings, individual stunting, low yield per plant, yield per unit area cannot be increased. On the contrary, the seeding rate is small, the seedlings are too thin, and the individual development is good. Although the yield per plant is high, the number of plants per unit area is small and the yield can not be increased. Therefore, establishing suitable seeding rate based on soil strength, variety, and sowing date is the basis for determining the reasonable population structure of buckwheat.
2. Soil fertility Soil fertility affected ramets branches, plant height, node number, inflorescence number, floret number and grain number. Fertile ground buckwheat production depends mainly on branching, and barren ground mainly on the main stem. Generally referring to the density index of the fertilizer, the density should be appropriately reduced in the fertilizer land, and the density should be increased appropriately in the thin land.
3. The number of fertility days for the same variety at the sowing date varies greatly depending on the sowing date. The trophozoites and main economic traits also change with the number of fertility days. The eutrophication of the spring in the same area is greater than that of the summer pods, and the density of spring pods should be less than that of the summer pods. Xia Yun.
4. Varieties of buckwheat varieties are different, and their growth characteristics, size of vegetative bodies, branching ability, and seed setting rate are quite different. Long-maturing late-maturing varieties usually have a large vegetative body and strong branching ability, leaving the seedlings to be thin; short-term early-maturing varieties have a small vegetative body and weak branching ability, leaving the seedlings to be thick.
5. The sowing method of buckwheat sowing is different, and the individual growth and development of buckwheat are also different. The drilled plants have larger vegetative bodies, which can make full use of soil nutrients, have good ventilation and light transmission in the field, and have relatively thin seedling density. On-demand planting has high densities, poor plant development, and difficult to control the density, leaving relatively more seedlings. The sowing of plants is uneven, and the density of the seedlings is high. The plants are naturally regulated and the density is kept thick.
According to the experimental results of various regions, in moderately fertile soils, suitable density for seedlings planted on a sowing canopy is 60,000 plants per acre; 79,000 plants per acre are used for buckwheat. At present, studies on the high-yield technology of buckwheat at home and abroad have been considered to rely on multi-branching and multi-seedlings to increase the yield per unit area. It is also believed that branching should be controlled, the fruiting rate of the main stem fruit branches should be increased, the nutrient concentration must be used, and the unlimited growth of buckwheat should be restricted. Different technical viewpoints and test methods, such as grain weight per plant, have proved that the latter is superior to the former.
5. Seeding buckwheat is unearthed with cotyledons, sowing should not be too deep, deep seedlings are difficult to emerge, sowing light and easy to dry. Therefore, the sowing depth is the key measure for the whole seedlings. In order to ensure smooth emergence, sowing should not be too deep, generally 3 ~ 4cm is appropriate, in sandy soil and arid areas can be slightly deeper, but not more than 6cm. To grasp the depth of sowing, first, according to the soil moisture, when the soil moisture is sufficient, it should be shallow, when the soil moisture is lacking, it should be deep; second, according to the sowing season, the spring hoe should be deeper, the summer worm should be slightly shallower; and the third should be soil quality, sand The soil and dry land can be properly deepened, and the clay land should be slightly lighter. Fourth, depending on the sowing area, in many areas with dry wind, emphasis should be placed on reclaiming the earth after planting, and the land reclamation should be appropriately suppressed. In the area, after raining, it is possible to use smashing and smashing. In addition, depending on the type of cultivar, different types of topsoil have different abilities. The local experimental results are appropriate for 4cm and may not exceed 6cm.
1. Timely planting at the right time is the key measure for buckwheat to achieve high yields. Sowing will affect the yield of buckwheat sooner or later. China has a vast territory and a vast territory, and the natural conditions and planting systems vary widely across the country. From a nationwide perspective, Chinese buckwheat has been planted throughout the year: spring sowing, summer sowing, autumn sowing and winter sowing, and also known as spring sowing, summer sowing, autumn sowing and winter sowing. In northern China's arid areas and annual one-year high-cold mountains and spring sowing; winter wheat in the Yellow River Basin sowed in summer; south of the Yangtze River and along the coast of central and southern China more than autumn sowing; subtropical winter sowing; Southwest Plateau spring or autumn broadcast. The specific suitable sowing date for each production area should be based on the ripeness of the variety (fertility period), the local frost-free period and the effective accumulated temperature of >10°C, so that the buckwheat flowering period avoids the local high temperature (>26°C) period and guarantees Mature before frost is the basic principle. For example: in the hilly area north of Yinshan Mountain in Inner Mongolia and on the Zhangjiakou Dam in Hebei Province, China is a region with early spring sweets in Hebei Province. Sowing should not be too early. Early sowing is vulnerable to late frost, and late sowing is vulnerable to early frost. The suitable sowing date is from late May to 6th. Early month. Another example: wheat and other crops were harvested earlier in Gansu's Mindong, Shaanxi's northern Fujian and Yellow River areas, and in the south-central part of Shanxi. Earliest species of buckwheat were also harvested earlier and were generally sown in mid-July. Low-altitude areas in Aba state are planted with buckwheat in July, and high-altitude areas can be planted from mid-April to the end of June; buckwheats in Yunnan and Guizhou are planted mainly in low-altitude areas below 1,700 meters, generally planted in the middle and early August; Parts of the Pingba area, Guangxi, Guangdong and Hainan are winter ploughs, which are generally planted from late October to mid-November. In the mountainous areas of southwestern China, suitable sowing dates for buckwheat are from mid-late April to early May.
2. The high yield of buckwheat seed processing must not only have good varieties, but also use high-quality, mature and full of new seeds. Seed treatment before sowing has a great effect on improving the quality of buckwheat seeds, seedlings, and young seedlings. The buckwheat seed treatment mainly includes several methods such as drying, seed selection, soaking, and seed dressing.
1 Shaizhong: It can increase the germination potential and germination rate of seeds, and it can improve the permeability and water permeability of seed coats, promote the maturation of seeds, increase the activity of enzymes, and enhance the viability and germination power of seeds. The sun also uses the ultraviolet rays in the sun to kill a portion of the bacteria attached to the surface of the seed and reduce the occurrence of certain diseases. The sunseed was selected to clear the weather 7 to 10 days before sowing, and the buckwheat seeds were thinly spread on the sunny or dry ground in Xiangyang. The drying time should be determined according to the temperature, and the drying time could be as long as the temperature was high.
2 Selection of seeds: The purpose is to eliminate empty grains, broken grains, grass seeds and impurities, and use large, full and uniform seeds to increase the seed germination rate and germination potential. Large and full seeds contain many nutrients, strong vigor, fast rooting, rapid emergence, and robust seedlings. Buckwheat seed selection methods include wind selection, water selection, screening, machine selection and grain selection. When using a seed cleaner to select several varieties at the same time, it is necessary to pay attention to cleaning the sorter to prevent mechanical mixing of seeds.
3 warm soup soaking: There is a role to improve seed germination, with 35 ~ 40 °C warm water immersed for 10 to 15 minutes, a good effect, can be prematurely matured. The use of other trace element solutions: ammonium molybdate (0.005%), potassium permanganate (0.1%), borax (0.03%), magnesium sulfate (0.05%), and potassium bromide (3%) to soak seed can also promote the development of buckwheat seedlings. Increased growth and yield.
4 Chemical seed dressing: It is an extremely effective measure to prevent underground pests and buckwheat diseases. After seed drying and seed dressing, the seed dressing of seeds and seeds is seeded with quinophthalein 0.5 to 0.1% of seed to prevent epidemics, blight and gray rot. Can also be used seed weight of 0.3 to 0.5% of 20% methylisothiphos EC or 0.5% Phoron Phosphate seed dressing, the seeds are mixed and stacked for 3 to 4 hours and then spread out to dry, control of wolfberry, wolfberry, golden needle Insects and other underground pests.
3. Seeding method China's buckwheat planting area is vast, the terrain, soil quality, cropping system and farming cultivation level of production areas are very different. Therefore, the sowing methods are also different. The main methods include seed drilling, on-demand broadcasting, and sowing. Scientific cultivation of buckwheat should advocate drilling. The sowing was caused by uneven seeding, irregular seedlings, poor ventilation and light transmission, and inconvenient field management. As a result, the yield was not high. On-demand work is too laborious. The quality of sowing seeds is high, which is conducive to the rational close planting and the coordinated development of individuals and individuals, so that the yield of buckwheat can be improved. According to the field experiment of Zhaojue Agricultural Institute in Sichuan Province, bitter buckwheat seeding increased production by 15% over sowing, and on-demand sowing was 13% higher than sowing; Liangshan Prefecture Agricultural Technology Station in Sichuan Province experimented. Both pod bitter and on-demand buckwheat were higher than sowing. Drilling increased production by 20.34% over sowing, and on-demand production increased by 6.89% over sowing.
1 broadcast: mainly animal traction ploughing and ploughing. According to the branching habits of soil fertility and variety, the seedlings were drilled in wide rows and drilled in wide rows. The drills were drilled with 167-200 cm in length, broadcasted in widths of 13-17 cm, and air-laid in rows of 17-20 cm. The advantages of drilling are the same in depth and depth, evenness, and neat emergence. When the spring drought is severe and the lyrical condition is poor, the seeds can be sown and planted at the right time to ensure the whole seedlings. Drilling also facilitates field management of weeding, weeding and topdressing. It is better to use the north and south ridges for drilling.
2 on-demand: take open hole, artificial seed, this method in addition to artificial seeds difficult to control the amount of seeding, the number of points per acre is not easy to grasp, the uneven use of nutritional areas, but also more labor-intensive. Cool to open 167 ~ 200cm, row spacing 27 ~ 30cm, nesting 17 ~ 20cm, 8 to 10 seeds per litter, until after emergence of seedlings 5 ​​to 7 strains.
3 Carriage uniform distribution: Car width 150 ~ 200cm, depth of the car ditch 20cm, width 33cm, sowing uniform, full seed per acre broadcast 3 kg.
4 Broadcasting: After the wheat is harvested in some areas, the arable land is then sprinkled with seeds and then flattened. Due to the spread of no plant spacing, the density is difficult to control, the population structure of the field is irrational, and the dense place becomes a pile. Field management is difficult and production is generally low.
6. Field management The task of field management is to adopt scientific management measures for the key technologies in the production of buckwheat to ensure the high yield and stable production of buckwheat.
1. Management of buckwheat at the seedling stage should take active measures to protect the seedlings. When drought is sown, timely repression should be carried out, the soil should be practical, the gap should be reduced, and the soil should be cultivated on the ground to facilitate the rise of groundwater and seed germination and emergence. After sowing, or when the soil moisture content is high, it will cause surface compaction, large wheat leaves, poor ability to top soil, ground panel knots will affect the emergence of seedlings, can be used to remove the compaction, loose surface, to facilitate the emergence of seedlings. Remove the surface of the knot should be noted that after the rain, the surface is slightly dry, so as not to damage the seedlings for the degree. Before and after the sowing of buckwheat in the lowlands, the drainage work in the field should be done. Excessive moisture is detrimental to the growth of buckwheat, especially at the seedling stage.
2. The cultivating, weeding, and cultivating and weeding and cultivating have the effects of loosening the soil, increasing the permeability of the soil, storing the water and keeping the earthworms, increasing the temperature of the soil, and promoting the growth of the seedlings, and also have the effect of removing the damage of the weeds. According to the data, cultivating once-ground can increase the soil moisture content by 0.12 to 0.38%, and cultivating twice can increase the soil moisture content by 1.23%, which can significantly promote the development of buckwheat. The number of branching of buckwheat per plant increased by 0.49 to 1.06 in cultivating and weeding 1 to 2 times, and the number of grains increased by 16.81 to 26.08, the grain weight increased by 0.49 to 0.8%, and the yield increased by 38.46%.
Therefore, cultivating and weeding is a “clean†project in agricultural production. It has played a role in saving fertilizer and water and enhancing the light, so as to obtain the effect of increasing production. The number and time of weeding and weeding depend on the area, soil, seedlings, and weeds. The first cultivating and weeding was carried out at a seedling height of 6 to 7 cm in combination with sparse seedlings. The second cultivator was carried out in combination with top-dressing soil before buckwheat ridges, and the cultivator depth was 3 to 5 cm.
3. Irrigated buckwheat is a typical dry crop, but its drought-resistance ability during the fertility process is relatively weak, requiring more water, and the water requirement during the flowering filling stage is the most. Chinese spring buckwheat is grown on dry slopes and lacks irrigation conditions. Buckwheat growth depends on natural precipitation. In areas with irrigation conditions in the summer wheat growing area, in the event of drought in the flowering filling stage of buckwheat, irrigation should be performed to meet the water requirement of buckwheat, so as to ensure the improvement of high yield of buckwheat.
4. Flowering management of sweet sorghum is cross-pollination crops, but also for the sexual flowers, seed setting rate is low, only 10-15%, is the main factor of low yield. The way to increase the fruit set rate is to create pollination conditions. Sweet pods are insect-like flower crops, and bees and insects can increase sweet-stem pollination rate. According to the study on the relationship between bee, insect pollination and yield of buckwheat by the Inner Mongolia Academy of Agricultural Sciences, under the same conditions, insect pollination can increase the number of grains per plant by 37.84 to 81.98% and increase the yield by 83.3 to 205.6%. Therefore, beekeeping and releasing bees in barley fields are not only important measures for increasing yield, grain number, grain weight and yield, but also conducive to the development of the beekeeping business. Conditions should be strongly promoted. Bee-assisted pollination was carried out during the flowering period of buckwheat. Two to three days before buckwheat flowering, 1-3 boxes of bees were placed on each buckwheat field.
Artificial pollination methods can also be used to increase the yield of buckwheat in places where no bee is placed. Artificially assisted pollination is best to use a leash to catch flowers or a long stick to catch flowers. To assist in pollination, to avoid damaging the flower, artificial pollination should not be carried out before or during the morning of the dew, rain or early morning stamens. Tartarian buckwheat is a self-pollination crop, the number of flowers can reach 1500-3000, and the seed setting rate is generally 40-60%. In areas with good water and fertilizer conditions, measures should be taken to limit its unlimited growth during the flowering period, promote dry matter accumulation, and increase the number of plants per plant. Grain weight, high quality and high yield.
2. EO sterilization is optional;
3. Individual PE bag or paper-poly pouch is optional;
4. Standard connector ( 15mm, 22mm );
5. Made mainly of PVC material, kinking resistant;
6. Smooth inside, usually equipped with water trap;
7. The length can be customized variously: 1.2m/1.5m/1.8m/2.1m/2.4m etc.;
8.The breathing circuit can be equipped with Water Trap, Breathing Bag (latex or latex free), Filter, HMEF, Catheter Mount, Anesthesia Mask or Extra Tube etc.
Buckwheat cultivation technology
1. Selection and selection of improved varieties is the preferred measure for less investment, faster results, and higher yields. There are many varieties of buckwheat in Aba and each has different adaptability, so it should be adapted to local conditions. The main cultivars were selected from the local varieties that had been purified and rejuvenated, and the "Chuanxiong No. 1" and "Xijing No. 1" that were bred. In the second half of the mountainous area, the “big buckwheatâ€, “fine grain wolfberryâ€, “Chuanxiong No. 1â€, and Xiqiao No. 1 were selected as the mid-maturing and medium-late-maturing varieties with good stress resistance and high yield performance. With high yields, in the second and second half of the mountainous areas, the use of “Xijing No. 1†and “Pig Cockroach†varieties, which are resistant to cold and tolerant, can yield relatively stable yields. The early and mid-season and high-yield varieties such as Xiqiao No.1, “Big Bitter Gourdâ€, and “Water Beggar†are available.