When will the latest Salvia miltiorrhiza be planted?

Salvia miltiorrhiza

Otherwise known as Radix Salviae Miltiorrhizae, etc., they are perennial erect herbs of the genus Salvia in Labiatae. They like to grow in a mild climate, sufficient light and moist air. The area with an annual average temperature of 17.1 ℃ and an average relative humidity of 77% is the best planting area. Let's take a look at when Salvia miltiorrhiza will be planted.

Root propagation time of Salvia miltiorrhiza

When harvested in autumn, the root of Salvia miltiorrhiza, which is 0.7-1cm in diameter, purple-red, pest-free and fully developed, was selected as the seed root and stored in wet sand until the next spring. From March to April in early spring, the seed root was cut into small segments of 4cm. According to the specification of row spacing of 35 cm × 25 cm × 6 cm, the cut root was placed vertically into the hole, one hole at a time, with the big head facing up, do not turn upside down, cover the soil about 2 cm, should not be too thick, otherwise affect the emergence of seedlings. Use about 50 kilograms of seed root per mu. When planted with root, it blossoms late, so it is difficult to receive seeds in the same year, but the root grows faster and the yield of medicinal materials is high.

Cutting propagation time of Salvia miltiorrhiza

From June to July in the north and from April to May in the south, the healthy and disease-free branches of Salvia miltiorrhiza were cut uniformly and cut into small segments with a length of 13 cm to 16 cm. The lower incision should be close to the stem node, showing a horseshoe shape. Cut off the lower leaves, according to the row spacing of 20 × 10 cm, insert the cuttings obliquely into the nursery bed, the depth of the cuttings is 2 × 2 + 3, the soil cover is pressed, and there are 1 × 2 leaves on the ground. Cut while inserting, can not be put for a long time, otherwise affect the survival rate of cuttings. After insertion, the soil is moist and shaded properly, and the new root can be produced from the lowest stem node in 15-20 days. When the root is 3 cm long, it will be placed in the field.

Seed propagation time of Salvia miltiorrhiza

The seeds of Salvia miltiorrhiza are small, the germination rate is about 70%, and the direct seeding method is often uneven, so the seedling transplanting method is mostly selected. Seeds maturing after June should be selected and sowed along with picking or sowing in September. Generally sowing in the seedbed in March, strip sowing and sowing can be done. The plant spacing of the strip sowing line is 30 × 20 cm, the depth of the ditch is 1 × 1.3 cm, the seeds are mixed with river sand, scattered evenly in the ditch, and the soil is covered by 0.5 cm to 0.7 cm. Sowing can spread the seeds evenly on the ground and step on them once, so that the seeds are close to the soil and do not need to be covered with soil. The sowing amount per mu is about 0.5 kg. Cover with plastic film after sowing to keep warm and moisturizing. When the local temperature reaches about 20 ℃, the seedlings will emerge in 15-20 days. When the seedlings have 3 or 5 true leaves, if it is found that the seedlings are too dense, the seedlings can be planted and cultivated amateurishly. After 2 months of growth after sowing, it can be transplanted.