High-yield cultivation techniques of Pinellia ternata

Pinellia ternata is a perennial herb of Araceae, alias Banzi, Sanxing grass, three leaves. It is pungent, warm and poisonous. The effect of dryness and dampness resolving phlegm, invigorating the stomach and spleen, reducing adverse reactions and stopping vomiting. It mainly treats phlegm and damp water drink, chest fullness, headache and insomnia. This medicine is distributed in Tianshui, Longnan, Pingliang and other places in our province.

The high-yield cultivation techniques are introduced as follows:

1 morphological characteristics

Herbs perennial, underground tuber bulbs oblate, 1 Mel 2 cm in diameter, with numerous fibrous roots in the lower part. The annual leaf is simple, the 2-3-year-old leaf is deeply divided into three leaflets, the petiole is 6mur10cm long, the inflorescence of the fleshy spike is terminal, the lower part of the bract is green, the interior is black-purple, tubular, not open, and the upper part is flaky. Berries are green. The florescence is from June to August and the fruiting period is from August to September.

2 growth habits

Pinellia ternata is wild in hillsides, valleys and wet grass, under forests and fields. Like a cool and humid climate, not resistant to drought, salt and alkali, afraid of stagnant water. It grows well on the soil with deep soil layer, loose structure, good drainage and air permeability, and rich in organic matter. 3Propagation method: tuber propagation and direct seeding, and sowing from late August to early September. Before sowing, apply enough base fertilizer, apply high-quality barnyard manure 1500hm / mu, make the border flat, open a ditch with a depth of 125cm according to the row spacing of 1520cm, spread the tubers evenly in the ditch and cover the soil according to the distance of 5m / mu, the seed amount per mu is 200Mel 250kg (fresh weight), the seedling emerges in 20 days, and the seedling height is 1025cm.

4 field management

4.1 weeding: after emergence, combined with loosening the soil, remove weeds in the field at any time.

4.2 topdressing: topdressing high quality farm manure once in the middle of growth, 1000 Mu topdressing 1200 kg per mu, combined with a small amount of phosphorus and potash fertilizer.

4.3 watering: when the drought is serious, the soil layer should be infiltrated 10 cm each time. After irrigation, the soil should be loosened and soil consolidation should be eliminated.

4.4 Disease control: the disease of Pinellia ternata mainly occurs from April to May. At the initial stage of the disease, 50% methyl topiramate wettable powder 500 times liquid or 50% carbendazim wettable powder 500 times liquid or 50% carbendazim wettable powder 500 times liquid or 50% carbendazim wettable powder 500 times solution, once every 7 times every 10 days, a total of 2 times.

5 acquisition and processing

Medicinal tubers. It can be harvested in summer and autumn and screened during harvest. The tubers are washed from the soil, except for branch bark and fibrous roots, dried or dried in the hot sun, and then used for medicinal purposes. Small tubers can be reserved as seeds.

6 points for attention

6.1 strictly prevent human and animal trampling at seedling stage.

6.2 do not repeat.