When does Schizonepeta tenuifolia sow? When does Schizonepeta tenuifolia sow?

1, Schizonepeta tenuifolia can be sown in spring or autumn, with spring sowing usually from early March to early April and autumn sowing usually from September to 10. The sowing time in the north and south may be different, so we should sow according to the local climate.

2. Planting techniques of Schizonepeta tenuifolia. Farming: The main nutrients for planting Chinese herbal medicines come from soil, so the choice of planting place and farming are the basic conditions for successful planting. We should not only consider the ecological environment it needs, but also consider the national standards of Chinese herbal medicines. Choose flat, fertile, sunny soil that meets the national planting standards in all aspects and is convenient for drainage and irrigation. Secondly, we should apply more basic fertilizers, mainly compost, manure and organic fertilizer. Take the land preparation as the boundary, and make the flat boundary and high boundary according to different terrain.

3. Cultivation: Schizonepeta tenuifolia is usually sown in March and April in spring and September in autumn. The most commonly used propagation method is seed propagation. Choose mature, full, dark brown or brown seeds without pests and diseases, and sow them by sowing or drilling. Generally, the row spacing should be kept at about 20 cm, sowing evenly, and then covering the seeds with soil. Pay attention to keeping the soil moist with feet and proper watering, which can promote the emergence of seedlings.

4. Field management: It usually takes about ten days and a half to emerge. The field management of Schizonepeta tenuifolia is generally divided into three stages, namely seedling management, growth management and later growth management. At the seedling stage of Schizonepeta tenuifolia, that is, when it is about four or five centimeters, it is necessary to carry out intertillage weeding. When the seedlings grow to about eight to ten centimeters, it is necessary to start thinning. The spacing between plants is about15cm, and at the same time, reasonable watering and fertilization should be carried out. Nitrogen fertilizer is the main fertilizer. During the growing period, intertillage weeding is needed every 20 days or so. When Schizonepeta tenuifolia grows to about 25 cm, appropriate amount of potassium fertilizer should be applied. When the height is 30 cm, cake fertilizer is the main fertilizer, and phosphorus fertilizer and potassium fertilizer are used together. In the later stage of growth, we only need to let them grow naturally, so that we can keep the growth of Schizonepeta tenuifolia and improve the quality and yield of Schizonepeta tenuifolia.

5. Pest control: The main diseases of Schizonepeta tenuifolia are root rot, damping off, stem blight and black spot. It is necessary to strengthen field management, timely drainage, and enhance plant resistance through fertilization. Secondly, you can use Dixon, Bordeaux mixture, carbendazim, etc. The most common pests are ground tigers, crickets and moths. Bacillus thuringiensis emulsion can be used in the early stage of pest occurrence, and pyrethroid pesticides should be used for spraying when the pest is serious.