What are the key points of the planting techniques for Buddleja officinalis?
Buddleja officinalis, also known as Jiulixiang, Xiaojinhua and Menghua, is a plant of the Loganiaceae family. It can be used as medicine and has the effects of dispelling wind, cooling blood, moistening the liver and improving eyesight, and is often used to treat various eye diseases. So how should Buddleja officinalis be planted? Let's take a look at the detailed introduction.
1. Site selection and land preparation
Buddleja officinalis prefers a warm and humid environment. When planting, it is advisable to choose sandy loam with deep soil, loose and fertile texture and good drainage. After selecting the site. After selecting the site, carry out ploughing to a depth of 30-40 cm, rake fine and level, then make seedbeds 1.2-1.3 m wide, while in the field apply decomposed farmyard manure as base fertilizer, preferably 1500-2000 kg per mu, and then make the beds and wait for planting.
2. Propagation methods
Buddleja officinalis is propagated by seeds. The best sowing time is in autumn. On the prepared seedbed, open furrows at a row spacing of 35 cm, with a furrow depth of 3-4 cm. Then sow the seeds evenly into the furrows and cover with 0.5 cm of soil. It should not be too deep, so as to avoid preventing the seeds from emerging smoothly. It is best to cover with a layer of rice straw to keep warm and moist and facilitate emergence. After sowing, keep the seedbed moist frequently. When the seedlings emerge, remove the covering grass in time. Cultivate for 1-2 years, and when the seedlings grow to about 1 m, they can be planted out. After digging out the seedlings, prune their root systems, trim off excess fibrous roots, then open holes at a plant and row spacing of 2×2 cm for planting out, plant one plant per hole, cover with soil, firm it by stepping on it, and water thoroughly to settle the roots.
3. Field management
After the seedlings emerge, loosen the soil and weed in time, so that there are no weeds in the field, and keep the soil moist frequently. After each fertilization, apply some dilute fertilizer water appropriately to promote seedling growth. After planting out, carry out intertillage and weeding 3-4 times each year, and at the same time combine with earthing up to prevent the root system from being exposed and the plants from lodging. During the flowering and fruiting stages, apply topdressing once each, preferably with nitrogen-phosphorus-potassium compound fertilizer, or organic fertilizer or farmyard manure can also be chosen. For plants over 3 years old, the main trunk and shape have become established; at this time, weak branches, diseased and pest-infested branches, dead branches and sprouting branches from the root system should be pruned off to reduce nutrient consumption.
4. Pests and diseases
Buddleja officinalis basically has no diseases during cultivation. Most of the time there are pests such as stem borers and red spiders. Stem borers mainly damage young branches, and imidacloprid or monocrotophos can be sprayed for control during the egg-laying period; red spiders mainly damage leaves and can be controlled with dimethoate.
The above is an introduction to the planting techniques for Buddleja officinalis. I hope it can help you. If you want to learn more related knowledge, please follow us.