The planting technology and mu income of Salvia miltiorrhiza is about 10,000 yuan per mu.

Propagation methods: root-divided planting, cutting propagation and seed propagation can be selected. Field management: attention should be paid to loosening soil, weeding, topdressing, watering and heart-picking in the process of planting. Pest control: mainly control diseases and insect pests such as root rot, aphids, Spodoptera litura, cotton bollworm and grubs. Mu income: the growth cycle of Salvia miltiorrhiza is one year, harvest in autumn, and the net profit per mu is about 10,000 yuan.

Salvia miltiorrhiza is generally planted in Sichuan and Zhejiang, and can be planted directly in orange orchards, mulberry orchards, tea gardens and young Chinese fir forests in Zhejiang, while in Sichuan, we should choose the land that has been planted with corn, peanuts and sweet potatoes, prepare the land again, turn it over 30cm, and apply basic fertilizer on the prepared land, applying compost or barnyard manure of about 2000 kg per mu, and then flatten the land into a high or flat bed, with a width of about 1.2m. The length of the border depends on the terrain.

1. Reproduction mode of Salvia miltiorrhiza

1. Split-root planting

The main results are as follows: (1) the annual lateral roots of Salvia miltiorrhiza, which are about 0.3cm in diameter, stout, red in color and free from diseases and insect pests, can be planted from February to March or November after harvest.

(2) the holes were planted according to the distance of each row (30cm-45cm) and the distance of each plant (25cm-30cm), and the depth of each hole was 3cm-4cm.

(3) to apply fertilizer, pig manure and urine can be applied at a rate of 1500 kg-2000 kg per mu.

(4) in planting to fold the selected branches into 4cm-6cm long root section, it is best to choose the head and tail of the root for planting, because the seedling comes out early, you can fold while planting, the root should be planted upward, two sections should be planted in each hole, and after planting it is covered with a layer of thin soil about 1.5cm, but some are planted in the middle of the plant, and the emergence is slow, so it is necessary to plant separately according to the position of the root section, which is easy to manage.

(5) We should pay attention to cover a layer of straw to prevent freezing when planting roots separately, and do not choose the Lignified mother root as planting, because its yield is low and it is not easy to germinate.

2. Cuttage propagation

(1) using the aboveground stem of Salvia miltiorrhiza, cut it into small segments of 10cm-15cm, cut off the lower part of its leaves, and the upper part of it had to lose half of its leaves, and put it along the 20cm of each row, and the distance of each plant was 10cm. The shallow trench was obliquely inserted into the finished border soil, and then buried 6cm.

(2) watering and shading should be carried out after cutting.When Salvia miltiorrhiza grows around 3cm, it can be planted in the field, and the roots of Salvia miltiorrhiza can be cut down and planted directly, and watering can survive.

3. Seed propagation

According to the environmental and climatic effects of different regions, the way and time of sowing are different.

The main results are as follows: (1) Salvia miltiorrhiza planted in Beijing should be sowed in March, covered with soil 0.3cm, watered, and then covered with a layer of plastic film to keep the soil moist, and seedlings would emerge in 15 days.

(2) Jiangsu and Zhejiang provinces are in June when the seeds are mature, sow the seeds immediately after harvest, cover the seeds with soil, and then cover them with a layer of straw for moisturizing, which can be directly transplanted three to four months later.

(3) in North China, sowing is carried out in the middle of April, and you can choose strip sowing or hole sowing. If the distance of each row is 30cm-45cm and the distance of each plant is 25cm-30cm, there are 5-10 seeds in each point. If sowing, we should dig a shallow trench with a depth of 1cm, and put seeds into the ditch and cover the soil with 0.6cm-1cm. The seeds are about 0.5kg per mu. If the land is dry, we should first pour water to keep the land moist, and then sow. Seedlings will emerge after half a month, and when the seedlings of Salvia miltiorrhiza grow to 6cm or so, we can carry out inter-seedling and seedling fixing.

II. Field management

1. Loosening the soil to promote seedling emergence: due to the thick soil cover of root propagation, seedling emergence is slow, and seedlings generally emerge in April. Check the situation of seedling emergence. If you find that the soil is hardened or the soil is thicker, remove the soil to promote seedling emergence.

2. Weeding: weeding three times during the growing period, once in May, when the seedlings are in 10cm-12cm, the second in June, and the third in August.

3. Topdressing: when weeding the seedlings, topdressing should be carried out at the same time, using rotten manure 1000 kg-2000 kg, superphosphate 10 kg-15 kg, or cake fertilizer 25 kg-50 kg.

4. Watering: if the land is dry during the emergence of Salvia miltiorrhiza seedlings or during the growing period, it should be watered or irrigated in time to provide sufficient water for the growth and development of Salvia miltiorrhiza.

5. Heart-picking: when growing buds of Salvia miltiorrhiza, all buds should be removed except those that should be left as seeds, which is beneficial to the growth of roots.

III. Prevention and control of diseases and insect pests

1. Root rot: selecting dry and well-drained land for planting can effectively reduce the occurrence of root rot. High temperature and rainy weather is prone to root rot, which can be irrigated with 1000 times the concentration of carbendazim.

2. Aphids: 1000-2000 times of methotrexate or 1000-2000 times of dimethoate EC can be used every 7-10 days until aphids are removed.

3. Spodoptera litura: Spodoptera litura can be effectively removed by spraying Salvia miltiorrhiza at a concentration of 1500 times of trichlorfon or 50 times of phosphoamine EC once a week.

4. Helicoverpa armigera: spraying 1500 times concentration of 50% phosphamine EC or 25% insecticidal amidine solution to control cotton bollworm at budding stage.

5. Grub: mix the seeds with 75% phoxim EC according to 0.1% of the seed amount, irrigate with 1000 times the concentration of 90% trichlorfon or 75% phoxim EC during the field occurrence period, and use 25 grams of chlordane EC. 5 kg of fried wheat bran, mixed with the right amount of water poison bait, sprinkled in the field in the evening to kill grubs.

4. Income of planting mu of Salvia miltiorrhiza

1. Cost

Tree saplings: Salvia miltiorrhiza needs about 8000 seedlings per mu and 0.08 on the market, and the investment per mu is only 640 yuan.

Cultivated land: then plough the land twice, each time will cost about 100 yuan.

Fertilizer: about 50 kg of fertilizer per mu plus topdressing costs a total of 200 yuan.

Pest control: the cost of the drug is 100 yuan.

Others: the labor cost is calculated at 1000 yuan.

The total cost is about 2100 yuan.

2. Income

The growth period of Salvia miltiorrhiza is one year, and it is generally harvested in the autumn of the year. The dry goods per mu can have 360kg, 34 yuan per kilogram, and the income per mu is 12240 yuan. Excluding costs, the net profit is about 10000 yuan.