How to grow Bupleurum

Soil preparation and fertilization: select sandy loam soil with loose and fertile soil, deep soil layer and good drainage, and apply base fertilizer after soil preparation. Seedling colonization: seedlings can be interspersed when seedlings grow to 4-5cm and colonize when seedlings grow to 8-10cm. Seedling weeding: timely seedling replenishment, watering and weeding is needed after seedling replenishment. Rational fertilization: reasonable fertilization according to different growth periods of plants. Timely drainage: clear ditches and prevent waterlogging. Removal of bolting: timely removal of tillers and new bolting buds can be carried out in batches.

I. the planting method of Bupleurum

1. Soil preparation and fertilization

Bupleurum is warm, resistant to drought and cold, and afraid of waterlogging, so it should be planted in sandy loam or gentle slope with loose and fertile soil, good drainage and irrigation conditions and deep soil layer, and then prepare the soil and apply basic fertilizer, mainly rotten barnyard manure, about 30,000 kilograms per hectare.

2. Seedling colonization.

Bupleurum will emerge about 12-15 days after sowing. When it reaches about 4-5cm, seedlings can be interspersed, weak diseased seedlings and overdense seedlings can be pulled out, and seedlings can be planted when they reach 8-10cm. They can be planted at about 6705-825000 plants per hectare.

3. Replenishing seedlings and weeding

If there are missing plants in the field, the seedlings should be replenished in time and watered after the seedlings are replenished. in order to avoid root injury and reduce yield, intertillage should not be carried out after the plant is closed, and the use of chemical herbicides should be reduced as far as possible, so weeding can only be carried out manually.

4. Rational fertilization

Fertilization can be carried out in combination with intercropping during seedling intercropping, fertilization can also be combined with intercropping during planting, topdressing can be carried out when seedlings grow to 30-40cm, and organic potassium fertilizer can be sprayed if fertilization is carried out alone.

5. Timely drainage

Bupleurum like to be wet, but afraid of waterlogging, Rain Water season must be timely removal of furrows, so as to ensure smooth drainage, but also reduce the incidence of field diseases.

6. Removing iniquity and picking bolts

In order to promote the accumulation of nutrients in plant roots, the tillers and new flower buds should be removed in time, which can be carried out in batches.

7. Control of diseases and insect pests

Give priority to prevention, the use of high-efficiency and low-toxic pesticides or biological pesticides for prevention and control, pay attention to the use of pesticides with high toxicity and high residues and heavy metal pesticides.

II. Breeding methods of Bupleurum

1. Seed propagation

(1) treatment of seeds: about 15 days before sowing, soak the seeds in 6-BA soaking solution for about 24 hours, and then put wet sand and seeds in the container, about 12 days before sowing.

(2) sowing method: generally, Bupleurum can be sowed at the end of March in spring, with about 1-1.5jin per mu, 30 cm between rows and 23-27cm at holes. Plant ash and seeds can be evenly mixed and then sowed, then covered with soil, covered with a layer of wheat straw and watered. Autumn sowing is the same as spring sowing before it freezes.

2. Seedling propagation

(1) sowing: sowing seeds by sowing or strip sowing at the end of March. When sowing, make grooves after finishing the border surface, then spread the treated seeds evenly on the border surface, and then cover the soil. Strip sowing can be ditched according to the row spacing 10cm or so, and then covered with soil, covered with a layer of grass and watered.

(2) Seedling transplant: seedlings will emerge about 10 days after sowing, which can be planted according to the root diameter of about 2-3 mm and root length of about 5-6cm. You can also choose disease-free and sturdy seedlings to plant according to plant spacing 10cm, row spacing 25cm or so, pay attention to be sure to dig and plant immediately, in order to improve the survival rate, you must immediately water after planting.