Artemisia annua facilities high-yielding cultivation techniques

I. Variety selection

Artemisia argyiensis is divided into three types, namely Artemisia scoparia, Artemisia oleracea, and Artemisia annua. Artemisia halodendron: also known as Artemisia halodendron or Artemisia ordosica, which has large leaves, few nicks and shallow leaves, thick flesh, short and thick twigs, less fiber, stronger aromas, good quality, and high yield, but poor cold resistance. Slow growth, late maturity and cultivation are common. Leaflet Artemisia halodendron: also known as Artemisia oleracea or Artemisia selengensis, leaves are narrow, lacking and deep, thin leaves, fine shoots, and branches growing faster. Strong odor, poor quality, low yield, but cold, mature earlier, suitable for winter cultivation. Artemisia stalks: stems are fine, the main stems are erect and well developed, and the edible parts are tender stems.

Second, the soil fertigation

Before sowing, 2000 kg of high-quality farmyard fertilizer and 25-50 kg of diammonium phosphate shall be spread uniformly on the ground per acre, and then deep-frozen twice to fully mix the fertilizer and the soil. Fuping Houzuo, the width of 1 to 1.5 meters, width 8 to 10 cm wide, light step on it again, to prevent water after the sink.

Third, sowing date

The northern region can be planted from early October to mid-November, and if it is planted in a greenhouse before light snow, it can be harvested during the Spring Festival. Planted in spring in the protected area, usually planted in the greenhouse in late March, or transplanted in the middle of April; autumn and winter cultivation can be planted in batches and in stages, 10-15 days in one sowing period, under the condition of heating greenhouses. Delayed harvesting until December.

Fourth, seed processing

Plug 3 to 5 days before soaking in warm water at 55°C for 20 minutes to remove virus from seeds. Then soak in warm water at 30°C for 24 hours. Rinse and dry. Put in clean containers and place. Germination at 15°C to 20°C. Wash with warm water once a day, budding 3 to 5 days (if new seeds are placed in advance at 0 °C ~ 5 °C low temperature treatment about 7 days to break the dormancy).

Fifth, sowing

Regardless of seed sowing or seeding after germination, they can be sowed and drilled. Drilling, in the 1 to 1.5 meters wide rake within the row spacing 15 to 20 cm ditch, ditch depth of 1 cm, in the ditch with a pot of water, water seepage in the ditch after the seed, and then cover the soil, cover film insulation Moisturizing After the emergence of the mulch removed.

Six, field management

1. Temperature. After sowing 5 to 7 days, maintain 20 °C ~ 25 °C during the day, 10 °C at night, during the day after emergence 15 °C ~ 20 °C, night 8 °C ~ 10 °C, more than 25 °C that quilted vent, must be high temperature damage. Chrysanthemum growth temperature 17 °C ~ 20 °C.

2. Water and fertilizer management. Keep the ground moist after sowing to facilitate seedling emergence. After the emergence of Qi Qi, the number of waterings can be reduced, and the Qiuyang can be kept dry and wet to prevent the occurrence of damping-off and downy mildew. When the seedling height is 3 cm, it is poured with water once. During the whole growth period, it is poured 2 or 3 times. When the seedling grows to 9-12 cm high, the first fertilizer is recovered, and the water is traced to ammonium nitrate 10-15 kg. After each harvest once fertilizer.

3. Marrow weeding. When the seedlings grow to 10 cm in height, the leaflets are planted and spaced 3 to 5 cm apart from each other, and the big leaf species are to be extracted between about 20 cm and the weeds are removed.

7. Harvesting

Generally 30 to 40 days after emergence, seedling height 25 to 30 cm can be harvested. The harvest was too late and affected the quality. The average output per acre is 1000-1500 kg. Http://Content/a94078a1-ea3f-464f-9f1d-b92f0038780a?cType=2

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