What are the latest precautions for planting Angelica dahurica?
Angelica dahurica is a widely used medicinal herb, and its main value lies in its root. It can not only be used to make medicine, but also to make incense. In our daily life, some toothpastes contain Angelica dahurica ingredients, such as Yunnan Baiyao toothpaste, and the price of Angelica dahurica on the market is also very good and highly competitive, so many people have seen a business opportunity, which is planting Angelica dahurica. However, there are also many issues that need attention when planting Angelica dahurica, otherwise a small mistake can lead to heavy losses. So let us take a look below at which issues need attention when planting Angelica dahurica.
1. Planting time
Angelica dahurica cannot be planted all year round. The most common times are spring and autumn. The planting time has a great relationship with temperature. The temperature suitable for the growth of Angelica dahurica is 15 to 28 degrees, so spring planting generally has to wait until after Qingming Festival. Before Qingming Festival, the temperature is still relatively low and there is a lot of rain, which is especially unsuitable for the growth of Angelica dahurica. Although the autumn temperature is very suitable for the growth of Angelica dahurica, there is relatively little rain in autumn, and the growth of Angelica dahurica also needs a certain amount of water. If it relies entirely on artificial irrigation, this is also a big project, so autumn planting is generally most suitable during the period from the end of August to the beginning of September.
2. Seed cultivation
If Angelica dahurica is planted from seeds, the seeds need to be pre-germinated, otherwise their germination time is very slow. Our general treatment method is to soak the Angelica dahurica seeds in warm water at about 40 to 50 degrees for four to five hours, then rinse them in cold water, then mix the seeds with some chemicals for disease prevention and enhanced resistance, and after three hours rinse them clean with clear water. Finally, we need to place the seeds in an environment with a temperature of 25 degrees for pre-germination. When 80 percent of the seeds have sprouted, they can be sown. Doing this can increase the survival rate of Angelica dahurica to a greater extent.
3. Planting density
No matter what is planted, there needs to be a certain spacing so it can grow better, so Angelica dahurica is no exception. For Angelica dahurica, the main goal is to let its root continuously grow and develop and send out more rhizomes. The general planting spacing is 30 to 35 cm between rows and 15 to 20 cm between plants, so that it has a certain space for development underground. The growth of Angelica dahurica also requires photosynthesis and respiration through branches and leaves, so reasonable density allows it to receive sufficient sunlight and greatly increases yield.
4. Fertilizer and water management
Fertilizer and water management occupy a very large part in the growth process of Angelica dahurica, so in this step we must handle it properly. First, when planting, we need to apply sufficient base fertilizer, generally using farmyard manure and animal dung. Second, when planting, the land must be watered once, so that the seeds will grow a little faster. In the later stage, Angelica dahurica also needs three to four topdressings. The first topdressing is ten days after transplanting, the second is when Angelica dahurica grows to 20 cm, the third is when Angelica dahurica blooms, and the last is when it is almost ready for harvest. The types of fertilizer used each time are basically similar, generally human excrement and urine water, plant ash, urea and phosphate fertilizer. Water control is relatively simple. Generally, during the period after transplanting, watering is needed until Angelica dahurica survives. Second, when Angelica dahurica blooms, more water is needed at this time. Finally, after harvest is completed.
5. Weeding methods
During the entire growth process of Angelica dahurica, a total of three rounds of intertillage and weeding are needed. The first is after planting. If weeds appear in the field, they need to be removed immediately. The second is to weed once two days before Angelica dahurica blooms. This time, the soil should be loosened as much as possible, which is beneficial to the expansion of the Angelica dahurica rhizome. The last is to weed one final time after blooming. This time, only gently pull out the weeds in the field, and do not loosen the rhizome, which would reduce yield.
6. Disease control
Angelica dahurica generally suffers from leaf spot disease, with symptoms appearing as brown spots on the leaves. If not treated in time, the leaves will slowly all wither, causing the plant to die. The most direct treatment method is spraying with Bordeaux mixture for prevention and control. Second, there are also many pests, such as aphids and red spiders. For pests, we have a general-purpose pesticide, which is trichlorfon.
The above are several issues that need attention during the planting process of Angelica dahurica. Of course, there are also some other factors that will affect the growth of Angelica dahurica, but these are relatively important factors, so be sure to pay attention when planting. To learn more exciting content, please follow our Qinnong Network.