The latest methods to teach you how to increase the yield of Scutellaria baicalensis
Scutellaria baicalensis is a relatively precious medicinal herb, with a use value higher than that of herbs such as Angelica dahurica and licorice, and its market value is also very considerable. In addition, with strong support from national policies, the cultivation of Scutellaria baicalensis is increasing, but the yield has consistently been less than ideal. So now let Qinnong.com briefly analyze for everyone how to increase the yield of Scutellaria baicalensis cultivation.
1. Scientific land preparation
For the cultivation of Scutellaria baicalensis, we generally choose sandy soil with relatively sufficient sunlight, as this is beneficial to the growth of its roots. Secondly, a good water diversion and irrigation-drainage system is needed, so the planting site is generally chosen on mountainous land with a certain slope. When preparing the land, we must fill in uneven areas and must not leave pits and hollows, as these easily cause water accumulation. Secondly, land preparation must be meticulous: break large clods of soil into pieces about the size of a little finger, then spread a sufficient amount of livestock manure and organic compost, plow the land again, and mix the fertilizer evenly. Finally, make ridges and open furrows. The width of the ridges is generally about 1.5 to 2 m, and the depth of the furrows is 30 cm.
2. Timely sowing
Although Scutellaria baicalensis can be sown in spring and autumn, spring and autumn together total six months, and not every month is suitable for Scutellaria baicalensis to take root and sprout. We generally choose early May in summer and October in autumn for sowing; the temperature and climate in these two months are most suitable for the growth of Scutellaria baicalensis. When sowing, we must first soak the seeds in warm water for half a day, then remove them and mix them with some medicinal solution for disease and pest prevention, then place them at a suitable temperature to promote germination. When three-quarters of the seeds have developed white sprouts, they can be sown. The purpose of doing this is to increase the seedling emergence rate of the seeds.
3. Reasonable planting density
When sowing, pay attention to the distance between plants. We generally sow at a distance of 40 to 50 cm between rows and 25 to 35 cm between plants. When all the seedlings have emerged, generally keep three seedlings per plant, and remove excess seedlings according to the principle of keeping the large and removing the small. Fill in gaps where seedlings are missing in the field or plant them elsewhere.
4. Correct fertilization methods
Because Scutellaria baicalensis can be produced continuously for many years, and the yield in the first few years will not be very good, generally in the first year, in addition to the base fertilizer, it needs two topdressings. The first is about seven to eight days after planting, and the second is at flowering. Each time, urea, potassium fertilizer, and phosphate fertilizer are broadcast. By the second and third years, three topdressings are needed, generally livestock manure, human excrement and urine, organic compost, and farmyard manure. During the flowering period, phosphate fertilizer diluted with water is generally used for spraying. In subsequent production years, the fertilization method each year follows that of the second and third years, and the amount of fertilizer applied is determined as appropriate.
5. Effective pest and disease control
The pests and diseases that affect the yield of Scutellaria baicalensis are generally aphids, leaf blight, and root rot. Control methods include biological control and chemical control. Biological control means that in daily management, moisture and temperature are regulated within the range suitable for the growth of Scutellaria baicalensis. Secondly, when planting, spread a layer of quicklime around the plants for sterilization. Chemical control means spraying different chemicals according to different diseases. For example, trichlorfon or dichlorvos can be used for aphids, Bordeaux mixture can be used for leaf blight, and carbendazim can be used for root rot.