Key points of High yield and High efficiency cultivation techniques of Pinellia ternata

Pinellia ternata is a perennial herb, which is used in medicine as tuber. Judging from the planting of our land for many years, the general benefit per mu is about 10,000 yuan. The key points of its high-yield and high-efficiency cultivation techniques are introduced as follows:

First, in view of the growth habit of Pinellia ternata, which likes warmth, fertilizer and moisture, and is afraid of drought, waterlogging and high humidity, we should choose fertile sandy loam with higher topography and better irrigation and drainage conditions. It was deeply frozen in the winter of last year to promote soil weathering. After the beginning of spring, the land was leveled with 5000 kg of miscellaneous fertilizer, 50 kg of superphosphate and 10 kg of potassium sulfate per mu.

Second, the suitable time for sowing Pinellia ternata can be sown with tubers, bulbs and seeds. When using tubers, strip sowing should be carried out in the first and middle of March, with seed per mu of 75kg, row spacing of 18cm, plant spacing of 5cm and sowing depth of 5cm.

3. Rational fertilizer operation: in addition to applying sufficient base fertilizer, after finishing the seedlings, Huimanfeng 1 ∶ / mu was sprayed to promote the early development of seedlings; in late May, when the bulblets gradually expanded and turned reddish brown, combined with watering, 15 kg of urea per mu was applied; in the middle of July, when the new buds appeared in Pinellia ternata and the new roots of mother Pinellia ternata grew again, the mu was poured with 2000 kg of rotten dilute dung water to promote new seedlings. In the first and middle of September, urea 10kg, calcium superphosphate 20kg, cake fertilizer 30kg / mu were mixed with wet soil, combined with soil application to promote tuber expansion.

Fourth, pay attention to irrigation and drainage Pinellia ternata like to be wet and afraid of waterlogging, so during the growth period, we should not only keep the soil moist, but also avoid stagnant water.

Fifth, the plant of Pinellia ternata is small and its root system is underdeveloped, so attention should be paid to loosening the soil and weeding in time. The main diseases of Pinellia ternata are leaf spot disease and virus disease. For leaf spot, 20% chlorothalonil or 72% mancozeb 1 ∶ 500x solution can be sprayed at the initial stage of the disease, once every 7 days, for 3 times; for virus diseases, measures such as soil disinfection before sowing, selection of disease-free mother plants and immediate extraction of diseased plants during the growing period can be taken to control the disease. The pest is mainly red diamondback moth, which harms the leaves with larvae. 90% trichlorfon 1 ∶ 800 times solution can be sprayed to control the larvae.

Sixth, harvest in time with tuber planting, generally after Frosts Descent bulb mature. Once the bulbs are ripe, they should be harvested in time. If harvested too early, it will affect the yield and quality; if harvested too late, underground tubers and globules begin to sprout and grow again after a short dormant period, which will also affect the yield and quality.