Detailed Explanation of Field Management Techniques for Angelica dahurica Cultivation
Angelica dahurica is a perennial herb in the Apiaceae family and a traditional Chinese medicinal herb. The main medicinal part is its root, which has effects such as draining pus and promoting tissue regeneration, invigorating blood and removing dampness. It can be used to treat common minor ailments such as colds and headaches, and is also a major spice. It is mainly grown across a certain area in northern China, so how should Angelica dahurica be managed during cultivation? Below, the editor brings you the field management techniques for Angelica dahurica. Let's take a look!
1. Thinning and Final Thinning of Seedlings
Angelica dahurica grows very slowly during the seedling stage, so we must also do a good job of thinning and final thinning during this stage. Thinning should not be carried out in the year the seedlings break through the soil; rather, in the following spring during the greening period, once the seedlings have grown to about 6 cm, thinning should begin, following the principle of keeping the strong and removing the weak, with another thinning about 1 month later. Then, in mid-April when the seedlings have grown to a height of 15 cm, final thinning should be carried out, controlling the plant spacing of the seedlings to about 14 cm; if sown in holes, then no more than 3 plants should be kept per hole. To improve field aeration, when final thinning, care should be taken to pull out excessively vigorous seedlings to prevent early bolting.
2. Cultivation and Weeding
Cultivation and weeding are also very important for the growth of Angelica dahurica. As just mentioned, Angelica dahurica seedlings grow slowly and are relatively weak, so if weeds are not removed in time, the weeds will rob the nutrients needed for seedling growth, seriously affecting seedling growth. Cultivation not only effectively removes weeds but also prevents soil compaction, which would affect the infiltration of water and fertilizer and hinder the roots' absorption of nutrients and water. During thinning and final thinning, cultivation and weeding can be carried out together. Once the Angelica dahurica seedlings have grown and closed the rows, their growth capacity and nutrient absorption capacity become stronger, and weeding can then be stopped.
3. Timely Topdressing
Angelica dahurica has a relatively strong tolerance for fertilizer, but in early spring fertilizer application should be controlled; if the soil is fertile, no fertilization may be needed. This prevents excessive vegetative growth in seedlings due to too much nutrition and prevents early bolting. After spring, the growth capacity of Angelica dahurica increases, and at this time timely topdressing is needed, applying once each after thinning and cultivation. Then apply once each after final thinning and before row closure. When topdressing, pay attention to the weather and do not do it on rainy days, to prevent rain from washing away the fertilizer and causing it to lose effectiveness. When topdressing, pay attention to the frequency and amount, specifically according to soil fertility and plant growth.
4. Reasonable Watering
Angelica dahurica has a relatively high demand for water. After sowing, the soil should be kept moist; if there is no rain, then water about once every 5 days. This can improve the emergence rate. During the seedling stage, the soil should also be kept moist to prevent poor conditions such as yellow leaves caused by lack of water in the seedlings. Then, before winter arrives, water sufficiently with antifreeze water to improve the cold resistance of the seedlings and prevent frost damage. In the second spring, water appropriately together with topdressing once, and during the dog days of summer, ensure sufficient water even more. However, also pay attention to the amount; do not use too much, to prevent waterlogging damage to the Angelica dahurica roots caused by standing water, which can lead to root rot and similar problems, so we must also pay attention to doing a good job of drainage.
The above is a brief introduction to the key field management points for Angelica dahurica. The management of Angelica dahurica is very important for its growth. The quality of management directly affects the growth capacity, yield and quality of Angelica dahurica. Therefore, everyone must do a good job of field management when cultivating it. That is all for today's introduction. This article is for reference only. Friends who want to learn more related information, please continue to follow us!