A Detailed Guide to the Latest Scientific Cultivation Methods for Salvia miltiorrhiza
Salvia miltiorrhiza (Danshen) is a ginseng-type plant. Because it looks red, it is also called blood ginseng. It is widely distributed throughout the various regions of Sichuan, especially grown most abundantly in Zhongjiang. For planting Salvia miltiorrhiza, sweet potato fields or corn fields are generally chosen as the previous crop, and then the land is prepared before planting. So how should this Chinese medicinal herb plant Salvia miltiorrhiza be cultivated? Let me introduce the cultivation methods to everyone below!
I. Planting Methods
1. Root division propagation
In the production areas of Sichuan, root division propagation is mostly used. The Salvia miltiorrhiza intended for planting is left in the ground, and when it is time to plant, it can be dug up at any time for planting. When selecting, choose ones that have no pests or diseases and are thick and red in color. Planting can be done in February to March, or in November. After determining the row spacing and plant spacing, planting can begin. After planting, pig manure and urine can be applied, generally 1500-2000 kg of fertilizer per mu. When using root division planting, attention must be paid to measures for keeping the roots warm.
2. Cutting propagation
Cutting propagation is mainly used more in North China. The above-ground stems of Salvia miltiorrhiza are selected for propagation. After taking out the above-ground stems, use special scissors to remove the lower part of the leaves, and cut the upper part in half. After cutting, they can be inserted as cuttings. Insert the cuttings according to a certain row spacing and plant spacing. After inserting the cuttings, water them. After they grow to a certain length, they can be transplanted into the ground.
3. Seed propagation
The seed propagation method is relatively simple. First, soak the seeds for disinfection and sterilization treatment, then drill them in rows. After sowing, water them, then cover with plastic film. After covering with soil, cover the seeds, then cover with grass to retain moisture. For direct sowing, mid-April in North China is the best time to sow. After half a month, follow-up work such as emergence and thinning can be carried out.
II. Field Management
1. Intertillage and weeding
Because the soil covering is relatively thick, emergence is also relatively slow. Therefore, we should choose the time when the seedlings begin to emerge, and check the growth of the seedlings. If there is soil hardening, it will affect emergence, so it greatly affects emergence. The covering soil of the holes should be removed in time to promote the speed of emergence.
2. Fertilization
⟦NL>During the growth period, in combination with intertillage and weeding, generally topdress more than 2 times depending on the situation, using more than 1000 kg of fermented farmyard manure per mu. If rainfall is not ideal, more can be applied. Other fertilizers such as cake fertilizer can also be used. There is no restriction on the type, as long as a sufficient amount is ensured.3. Drainage and irrigation
Observe the drainage situation regularly to avoid waterlogging. During the emergence stage and seedling stage, keep the soil moist, and irrigate or water it in time.
III. Pest and Disease Control
1. Root rot
Root rot is a disease that occurs frequently in hot and rainy seasons. After being affected by root rot, the roots of the damaged plants will turn black, and the upper part of Salvia miltiorrhiza will also turn black. For areas with plants suffering from this disease, continuous cropping must be avoided to prevent the spread of the pathogen, and then a carbendazim solution should be used for irrigation.
2. Aphids
Aphids mainly feed on the sap of plants, and occur frequently in summer. Therefore, we can use dimethoate for spraying treatment, spraying once a week. After spraying continuously several times, they can be brought under control.
The above are the scientific cultivation methods for Salvia miltiorrhiza. The more common pests and diseases of Salvia miltiorrhiza are aphids and root rot. Others actually include silver Y moths, cotton bollworms, and white grubs, but these are relatively rare. The common ones are those two, so they were not introduced in detail. If you want to learn more related information, please continue to follow Qinnong Network!