Planting techniques of Radix Scutellariae

The seeds of Panax ginseng are covered with gelatin, and the pericarp is rich in vitamin C and plant fiber. Let's take a look at the planting techniques of Radix Scutellariae.

I. sowing date

Because of the different mulching and heat preservation conditions, the sowing time is different in the seedling stage.

Take the provinces in the middle and lower reaches of the Yangtze River as an example under the condition of coverage:

Heat preservation measures sowing time, planting time, listing time

Open-air planting in mid-April, mid-May, mid-late September

Single layer cover in early March, late April and late August

Double-layer cover in mid-late February, mid-April, mid-July

Three layers cover early and middle February, late March to early April, late June to early July.

2. Seed treatment

Before sowing, the seeds of Radix Ginseng should be treated with simple disinfection, low temperature or variable temperature, soaking seeds with trace elements and so on.

1. Soaking seeds to accelerate germination

After treatment, the seeds were placed under the condition of 28-30 ℃ to accelerate germination and germinate in about 24 hours. the seeds should be washed 2-3 times to remove the substances that inhibit germination and promote gas exchange.

2. Seedbed

Seedbed soil formula: 30% cooked pig and cow dung, 20% aged furnace ash, 10% mature dung, 40% peat soil. Another formula is 50% cooked animal manure, 10% aged furnace ash, 20% mature dung, 20% peat ash, and 4 kg calcium superphosphate, 1 kg plant ash and 1 kg ammonium nitrate per square meter of the mixed nutrient soil.

III. Seedling stage management

Sow the seeds that have been germinated in the sandbox, first pour through the bottom water and sow them with 1 cm of sand, cover the agricultural film or weave cloth to keep warm, keep the temperature in the sandbox at 28-30 ℃, and emerge one after another after 24 hours. When 80% of the seeds are unearthed, properly cool down to prevent overgrowth, 20-25 ℃ during the day and 16-17 ℃ at night.

Another method is to directly sow the budding seeds in the seedling bed soil made of peat soil and soil in the heat preservation shed, and transplant directly when the seedlings grow to 10-20 cm, and the temperature control is the same as the above method.

IV. Timely transfer of seedlings

The best time for transplanting cucurbit melon seedlings to the nutrient bowl should be carried out at the normal time of full development of cotyledons, that is, on the 4th day after cotyledon opening and about 8th day after sowing, which is the best time to transfer seedlings. At this time, the nutrients stored in the seeds have been basically consumed and begin to rely on the roots to absorb nutrients for plant growth. If the transplant is too late, the seedling raising period is prolonged, the cotyledons are prone to lack of fertilizer after full flattening, and the seedlings are prone to aging. This is a long-term phenomenon in today's production. At the same time, the times of raising seedlings should not be too much, and it is appropriate to take one time, and the seeds can also be directly seeded in the seedling bowl without moving seedlings to reduce root injury.

V. Management at the seedling stage

When the first true leaf of Huo ginseng fruit unfolds and enters the seedling stage, the soil should maintain a certain humidity and a high low temperature (15-20 ℃). The seedling stage can be fertilized with 0.2% potassium dihydrogen phosphate or carbon dioxide gas according to the nutritional status, the time should be carried out one hour after the sun comes out in the morning, and the temperature can be rapidly raised to 28-30 ℃.