Detailed Explanation of the Latest Technical Points for Field Management of Perilla
Perilla is an annual herbaceous plant of the Lamiaceae family, with a very peculiar fragrance, and is welcomed by many people for use in stir-fries. Moreover, perilla also has effects such as inducing sweating to relieve cold and relieving depression to stop vomiting. It can effectively prevent colds caused by exposure to cold, and now the planting area of perilla is very extensive. So how should we manage perilla when planting it? Below, the editor brings you the key points for field management of perilla. Let's take a look!
1. Thinning and weeding
In the early growth stage, perilla has relatively weak growth ability, so we should also pay attention to loosening the soil and weeding. Especially in direct-seeding areas, thinning should also be done well. When the seedlings grow to about 16 cm, control the row spacing and finalize the seedlings at the right time. Excess seedlings can be used for transplanting, because the density of direct seeding is relatively high. If thinning is not done in time, it will seriously cause insufficient growth space for perilla. The lower leaves of perilla decrease and air permeability declines, leading to reduced yield. Therefore, thinning must be done well, and finally weeding should be carried out twice before the seedlings close the rows.
2. Timely topdressing
The growth cycle of perilla is relatively short, and it can generally be harvested about two months after transplanting. The whole perilla plant can be used as medicine, so when fertilizing, we mainly use nitrogen fertilizer. When the seedlings grow to about 30 cm, topdressing can begin. The first application is mainly farmyard manure, combined with an appropriate amount of compound fertilizer. When fertilizing, bury the fertilizer into the soil to improve fertilizer utilization. Then carry out the second topdressing before the rows close. When topdressing, pay attention to the amount to prevent excessive growth and fertilizer damage, and do not let it contact the leaves and roots, so as to avoid hindering the growth of perilla.
3. Temperature control
Perilla generally likes to grow in a warm environment. When the soil temperature rises to about 5 degrees, the seeds can germinate. However, 20-22 degrees is the optimal temperature for seed germination. Although the seedlings have strong tolerance to low temperatures, their growth rate will be inhibited. Therefore, perilla has relatively strong growth ability in summer. After perilla enters the flowering stage, the temperature should be controlled at about 25 degrees, and the humidity should be maintained at about 78%. If it is too dry, it is easy to cause the stems and leaves of perilla to become thicker, increase fibrous substances, and reduce quality.
4. Reasonable watering
Water is an indispensable substance in the growth process of perilla. In perilla cultivation, the soil should be kept alternately dry and wet. If long-term drought and water shortage occur during the seedling stage, then it should be done in time, otherwise the growth ability of perilla will decline, and in severe cases it will cause drying and death. However, water should not be too much either. If there is too much water, it is easy to cause root rot in perilla, trigger various diseases and insect pests, and also affect the growth of perilla. Therefore, in the rainy season, drainage should be carried out in time to avoid water accumulation in the field.
The above is a brief introduction to the key points of perilla field management. When planting, we must do a good job in field management to ensure the growth of perilla and improve planting benefits. That is all for today's introduction. This article is for reference only. Thank you all for reading and supporting.