How to increase the yield of Scutellaria baicalensis

Scutellaria baicalensis Georgi is a relatively precious medicinal material, and its use value is higher than that of Angelica dahurica and licorice, and its market value is also very considerable. Coupled with the strong support of national policies, the cultivation of Scutellaria baicalensis is more and more, but the output has not been particularly ideal, so here is a simple analysis of how to improve the output of Scutellaria baicalensis planting by the pro-agricultural network.

1. Scientific land preparation

The cultivation of Scutellaria baicalensis Georgi is generally planted in sandy soil with sufficient light, which is conducive to its root growth, followed by the need for a good drainage and irrigation system, so the planting land is generally selected in mountainous areas with a certain slope. In the process of soil preparation, we have to fill in the uneven areas, so that there can be no potholes, which can easily lead to stagnant water. Secondly, when preparing the soil, we should be meticulous. We should make a large piece of soil into a small thumb, then sprinkle a sufficient amount of livestock manure and organic fertilizer, mix the fertilizer well, and finally make ridges and ditches. The width of the ridge is generally about 1.5 to 2 meters, and the ditch is 30 centimeters deep.

2. Sowing at the right time

Although Scutellaria baicalensis can be sown in spring and autumn, there are a total of six months in spring and autumn, and not every month is suitable for Scutellaria baicalensis. We usually choose to sow seeds in early May in summer and October in autumn. The temperature and climate of these two months are the most suitable for the growth of Scutellaria baicalensis. When sowing, we should first soak the seeds in warm water for half a day, then remove them and mix them with some anti-disease and insect potions, and then put them at a suitable temperature to promote germination. When 3/4 of the seeds are white, they can be sown. The purpose of this is to improve the emergence rate of seeds.

3. Reasonable planting density.

When sowing, we should pay attention to the distance between plants. We usually sow seeds according to the distance between rows of 40 to 50 centimeters and between plants of 25 to 35 centimeters. When all the seedlings have grown, then each plant generally leaves three seedlings, and the surplus seedlings are pulled out in accordance with the principle of protecting the big and eliminating the small, and the places where there are empty seedlings in the field are filled or planted on alternative land.

4. Correct fertilization method

Because Scutellaria baicalensis Georgi can be produced continuously for many years, and the yield in previous years will not be very good, it is generally necessary to apply fertilizer twice to remove base fertilizer in the first year, the first time is seven to eight days after planting, and the second time is when it is in flowering. Urea, potash fertilizer and phosphate fertilizer are applied every time. In the second and third year, topdressing is needed three times, usually livestock manure, human manure, organic manure and farm manure, which are usually sprayed with phosphate fertilizer and water at flowering stage. In the following output years, the annual fertilization method shall be carried out according to the methods of the second and third years, and the amount of fertilizer application shall be determined as appropriate.

5. Effective pest control

The diseases and pests that affect the yield of Scutellaria baicalensis are aphids, leaf blight and root rot. Biological control method is in the daily management, water and temperature control in the range suitable for the growth of Scutellaria baicalensis, followed by planting around the plant sprinkled with a layer of quicklime to sterilize. Pesticide control is to spray different agents according to different diseases, such as trichlorfon or dichlorvos for aphids, Bordeaux solution for leaf blight and carbendazim for root rot.