Angelica is a very famous Chinese herbal medicine in China. It has been widely used in Chinese medicine. Because the medicinal value of Angelica is very large, it is necessary to actively understand the high-yield cultivation techniques of Angelica, and summarize the cultivation experience to improve the yield of Angelica. The high-yield cultivation techniques of Angelica are shared below.
I. Environmental analysis of high yield cultivation of Angelica
1.1 Regional landscape
Hezheng County is located in the south of Linxia Hui Autonomous Region of Gansu Province. It is located at the intersection of the Loess Plateau and the Qinghai-Tibet Plateau. The total land area is 9.6 million square kilometers. The county town is 120 kilometers away from Lanzhou. Its landform features are: rivers interlaced, rapid currents, gullies and ridges, less mountains and rivers, and forest coverage rate of 28%. The highest elevation of the southern peak is 4360 meters, while the lowest altitude in the north is 1900 meters. Due to the special topography and superior geographical environment, it forms a characteristic natural landscape. The agricultural products of Zhengxian County mainly include wheat, broad beans, rapeseed, Chinese herbal medicines, etc. The good topographic environment promoted the high yield of Angelica, which provided favorable conditions for the high-yield cultivation of Angelica in Hezheng County.
1.2 Planting environment
The whole territory of Hezheng County belongs to the temperate continental climate. The climate characteristics are as follows: spring is late in autumn and early in summer and short in winter. In spring, there will be rain and snow, and the area is short in summer, and there are few cases of continuous high temperature. It is rainy and cloudy in autumn, and the winter is long and dry. According to statistics, the annual average rainfall is 637 mm. The rainy season is mainly concentrated in July and August of the lunar calendar. During this period, crops are often affected by the weather and suffer from disasters. Due to the special terrain, the climate between the regions varies greatly, and there are usually cases of wet north and south and north and south. According to relevant statistics, the annual frost-free period in the region is 133 days, the annual average sunshine is 2457 hours, and the average temperature is 5 °C, which provides favorable conditions for high-yield cultivation of Angelica.
Second, the growth habits of Angelica
Angelica is suitable for planting in cool, alpine and other areas, low temperature sunshine, angelica temperature, sweet and spicy, the region can be planted with angelica at an altitude of 1600 to 2800, achieving high yield. In the seedling stage of Angelica, the required transmittance is 15%. At the same time, avoid direct sunlight. The cultivated area of ​​Angelica in Gansu is large and the quality is good. It is suitable for cultivation in the sandy environment with loose soil, good drainage and fertile soil. It is not easy to be cultivated in the environment of compaction and stagnant water. Angelica from seed to maturity is a long process. It needs two winters. It must wait until the third growing season to complete the cultivation work. There are three main growth periods: the first year seedling period, the second year medicine preparation period, The third year of seeding. In the nursery period, it is necessary to carry out the transplanting of Angelica sinensis seedlings in time. This is the basis for high-yield cultivation of Angelica sinensis. The seedling period is 120 days, and the seedling period is one. The weight of Angelica sinensis is about 40g. During the drug-making period, Angelica needs to absorb nutrients. This is a critical period for the production of medicinal materials. It is necessary to manage and strengthen the inspection. The Angelica sinensis needs to be wintered in the field, and it can be harvested in mid-August of the third year.
Third, Angelica high-yield cultivation techniques operating procedures
3.1 Planting site selection
The soil layer is deep, the drainage is good, the soil layer is loose and fertile, and it is rich in humus. It is suitable for high-yield cultivation of Angelica sinensis. It is forbidden to plant on low-lying slopes, choose the place of growth of angelica in the sunny slope, promote natural sunshine, and actively consider the influence of the base on the quality of angelica. Finally, choose sandy yellow brown soil as the high-yield cultivated land of Angelica, and actively analyze the angelica in this link. Yield and market demand, in order to improve the production of Angelica, help to enhance the medicinal value of Angelica. Timely land preparation, in the first winter, artificial ploughing is used to level the land, and the land is turned deeper than 20cm. Before the second planting, the method of slinging with the shovel is adopted. The block is leveled. After deep turning, apply farmyard manure, use 2600kg of farmyard manure per acre of land, and then finely dilute it after deep turning, avoiding the appearance of blocky soil layers, excavating drainage ditch, and ensuring good growth environment of angelica.
3.2 Sowing
The seeding time of Angelica is from mid-March to late, before seeding, put the seeds into water at 30 °C for 24 hours, cover the seeds tightly, and cover the weeds, to twenty-four hours. Take it out and let it dry. Ensure that the seed hole spacing is 26cm, the depth is between 3cm and 6cm, the bottom of the hole should be flat, seed 10 seeds per hole, then cover it with fine soil, the depth of soil cover is about 2cm, avoid fine fertilizer If the soil is too thick or too shallow, the growth of the seedlings will be affected. After the seedlings are released, the pine needles in the upper layer will be removed in time, and the seedlings will be released about half a month after sowing. The grass will be loosened in time to promote emergence and lay a stable foundation for high-yield cultivation of angelica. .
3.3 Field Management
Within 20 days after sowing, the seedlings will continue to emerge. If there is a lack of seedlings at this time, it is necessary to choose to fill the missing parts on a cloudy day and do a good job of replanting with soil. Only two seedlings are left in each hole, and the damaged seedlings are treated in time, effectively reducing seedling damage, timely irrigation, and providing sufficient moisture for seedling growth in time. After the seedlings are out, the weeding begins. The seedlings are shaded under the covering, carefully weeding, and the weeds in the seedlings are cleaned up in time. The seedlings of Angelica are taken out to promote the rapid and natural growth of the seedlings, ensuring that the seedlings breathe naturally and effectively improve. Seedling water and temperature conditions promote root development. Gently shake the steamed bun and loosen the bed soil. For the too dense seedbed, the second seedling should be removed. After the seedlings and the autumn, the two stages should not be weeded several times to avoid the damage of the seedlings. Fast, at the same time weak, easy to damage, so in this period should be appropriate to reduce the number of weeding, effectively prevent root rot, and timely remove the weeds. The use of fertilizer scientifically, the demand for fertilizer in the growth process of Angelica is very large, in order to ensure sufficient fertilizer, it is necessary to carry out topdressing in time. For example, in mid-June and late June, the demand for fertilizer is increased, so the fertilizer should be used according to the actual situation. It is often used to dress up fertilizer with diammonium phosphate, potassium dihydrogen phosphate, and thiophospha-nitrogen potassium compound fertilizer. Appropriate irrigation to ensure that the soil of Angelica sinensis is moist, and the number of irrigations can be appropriately increased in continuous dry days, that is, dry irrigation, which promotes the development of Angelica sinensis and effectively improves the yield and quality of Angelica sinensis. In the early stage of growth, watering and fertilizing should be carried out once in a timely manner. The watering should not be too much, so that it can be dried and poured, avoiding the adverse effect of water volume on the yield of angelica. Pay attention to drainage after the rain to prevent the soil from heating and avoid root damage when planting.
SARS-CoV-2 Antigen Detection Kit applies immunoassay that uses highly sensitive monoclonal antibodies to directly detect the presence of virus. With detailed instructions and customized components, people can easily finish the detection process and rapidly get results in 10 mins. This test kit It is suitable for users over 15 years old. Children aged 2 to 15 must be swabbed and tested by an adult ( ≥ 18 years old). In addition, this kit can apply to various specified sites and scenarios.
COVID-19 Solution Test Kit
NINGBO AUTRENDS INTERNATIONAL TRADE CO., LTD , https://www.metests.com