What are the cultivation methods and precautions for Cornus officinalis?

Dogwood was very popular in ancient times; for example, the Double Ninth Festival on the ninth day of the ninth lunar month is also called Dogwood Festival. The main varieties of dogwood include Cornus officinalis, Evodia rutaecarpa, Zanthoxylum ailanthoides and Cornus canadensis. Today we mainly need to understand the cultivation methods and precautions for Cornus officinalis, this Chinese medicinal herb. Now follow the editor and take a look.

1. Soil and fertilizer management

Cornus officinalis is generally suitable for planting in slightly acidic soil with sufficient soil fertility, convenient drainage and irrigation, and rich humus content. Because Cornus officinalis has a relatively large fertilizer requirement, a heavy application of base fertilizer is needed when preparing the land. Deeply plow the land, cultivate carefully, level the ground, then apply fertilizer at 3,000 kg of organic fertilizer per mu, open furrows and make beds, with the beds about 1.5 m wide and about 10 cm high, and the furrows blending with the rear.

2. Propagation methods

There are three main propagation methods for Cornus officinalis. The first is sowing and raising seedlings for transplanting, all using seeds for planting. Sowing can be done in spring or autumn, using the drill sowing method, with a row spacing of about 25 to 30 cm. The second is layering propagation, and the planting time is also spring and autumn. The third is cutting propagation. Its best planting time is May each year. Select excellent branches and cut them to about 18 cm long, then insert them into the soil at a certain spacing, cover with plastic film, and strengthen water and fertilizer management.

3. Field management

After planting, about three rounds of cultivation and weeding are basically needed each year, once each in spring, summer and autumn, which can enhance soil permeability and promote root growth. After Cornus officinalis survives, it basically only needs two to three topdressings each year. The most common is applying fertilizer once each in spring and autumn every year, mainly barnyard manure or compost. After Cornus officinalis bears fruit, the most common practice is to apply urea once during spring sprouting, then apply a gibberellin aqueous solution once when the flowers bloom, and spray an appropriate amount of boron fertilizer during the young fruit stage. Finally, reasonable irrigation and pruning of branches and leaves are needed.

4. Pest and disease control

The main disease of Cornus officinalis is anthracnose. The peak period of occurrence is generally September to October each year, and the initial period of occurrence is generally around early June each year. The control method is spraying Bordeaux mixture, generally two to three times, once about every week. The most common pests include the fruit-boring moth and the mulberry looper. Generally, deltamethrin emulsifiable concentrate can be used for spraying to kill them, and trichlorfon crystals can also be used, with excellent control effects.

5. Precautions

Although planting Cornus officinalis is simple, there are still points we need to note. Cornus officinalis is a warm-temperate sun-loving plant, so the suitable temperature for its growth is between 20 and 30 degrees, and the temperature must not exceed 35 degrees, otherwise it will develop poorly, so we need to pay attention to temperature regulation during planting. Although Cornus officinalis likes light, shade should be provided in summer, and direct sunlight should be avoided, with scattered light being best.

The above is all the content the editor wants to share with you today. I believe everyone has gained some understanding of planting Cornus officinalis. If you still have other questions, remember to leave a message for the editor in time. At the same time, you can also follow us to get more valuable planting knowledge.