How to grow purple salvia miltiorrhiza? Latest planting techniques and methods tutorial
Purple salvia miltiorrhiza, also known as salvia miltiorrhiza, red ginseng, and mountain ginseng, is named purple salvia miltiorrhiza because it is mainly produced and sold in Yunnan. It is a traditional Chinese medicinal herb in our country, with its root used as medicine. It has the effects of promoting blood circulation and regulating menstruation, and relieving insomnia and palpitations. In modern medicine, it is used to treat coronary heart disease and angina pectoris, with remarkable results. So how should purple salvia miltiorrhiza be planted? Let's take a look at the planting techniques together.
1. Land selection and preparation
Purple salvia miltiorrhiza prefers a warm, humid environment with sufficient sunlight, and is not tolerant of low temperatures. At a low temperature of minus 5 degrees, the stems and leaves will suffer frost damage, but the root system is cold-resistant and can overwinter. It is also not tolerant of high temperatures. During the seedling stage, high temperatures will cause the seedlings to stop growing and die. It is averse to waterlogging. When planting, choose a plot with relatively high terrain, deep soil layers, loose and fertile soil, and good drainage. Apply decomposed farmyard manure as base fertilizer, level the land and make beds, then wait for sowing.
2. Seedling raising and transplanting
Open furrows on the bed surface at a row spacing of 30 cm, with a furrow depth of about 1 cm. Mix the seeds evenly with fine sand and scatter them into the furrows. Cover with soil just until the seeds are no longer visible. After sowing, cover the ground to keep it warm and moist, so as to facilitate emergence. After the seedlings emerge, punch holes in the plastic film to release the seedlings. When the seedlings grow to 5-6 cm, thin them out, and by late May they can be transplanted. Transplanting can be done in spring or autumn. Spring planting is in May, and autumn planting is in October. Earlier transplanting leads to earlier rooting. When transplanting, dig holes at a plant and row spacing of 23×33 cm, apply base fertilizer at the bottom of the holes, and place 1-2 strong seedlings in each hole.
3. Field management
After transplanting and survival, do a good job of cultivating, weeding, watering, and fertilizing, generally three times a year, to promote its growth. When cultivating, pay attention to the depth to avoid damaging the root system. When fertilizing, pay attention to the concentration and amount of fertilizer. During the rainy season, pay attention to drainage measures to avoid water accumulation and root rot. In drought, water in a timely manner. When purple salvia miltiorrhiza buds, except for those kept for seed, all the rest should have their flower buds removed to concentrate nutrients in the root system and improve yield and quality.
4. Pest and disease control
The main diseases of purple salvia miltiorrhiza include leaf spot disease, root rot, and root-knot nematode disease. Leaf spot disease can be controlled by spraying 0.3% potassium dihydrogen phosphate or carbendazim and thiophanate. Root rot can be controlled by spraying carbendazim and methyl thiophanate. Root-knot nematode disease can be controlled by reasonable crop rotation, and when the disease occurs, methyl isothiophos can be used for root irrigation. The main insect pest is the silver-marked noctuid moth, with larvae causing damage. In severe cases, they will eat the leaves clean. After harvest, clean up the residual branches and diseased leaves, and spray pesticides such as fenvalerate, omethoate, and trichlorfon for control.
The above is an introduction to the planting techniques of purple salvia miltiorrhiza. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.