High-yield cultivation techniques of Patrinia angustifolia

South scented soy sauce grass, alias flapping drum tree. With the whole grass for medicinal use, it has the effect of clearing heat and detoxification, dispelling blood stasis and expelling pus. Clinical treatment of appendicitis, dysentery, enteritis, hepatitis, conjunctivitis, postpartum blood stasis abdominal pain, carbuncle boils and other diseases. Mainly produces Anhui, Henan, Jiangsu, Shandong and other provinces.

The morphological characteristics are perennial herbs of Patrinaceae, up to 150 cm high, the whole plant is covered with exfoliated white bristles, and the underground stem is slender and transverse. Basal leaves tufted, broadly ovate, margin serrate, long stipitate, cauline leaves opposite, lanceolate or narrowly ovate, 5-15 cm long, 2-5 cm wide, apex acuminate, base cuneate and decurrent into petiole, pinnately divided, lobes 2-3 pairs, central lobe largest, elliptic or ovate, bilateral lobes small, narrowly elliptic or linear. Flowers small, 2-4 mm in diam., yellow, blooming in summer and autumn. Panicles composed of numerous Cymes, terminal; calyx very small; Corolla tube short, 5-lobed; stamens 4, ca. as long as Corolla. Capsule long ellipsoid, ca. 5 mm in diam., margin slightly flattened, wingless.

First, growth habits. Patrinia villosa prefers a cool and humid climate. Hardy, seedlings can survive the winter in the open field. The suitable growth temperature is 18 ℃ 28 min. The requirement to the soil is not strict, the general soil can be planted. Saline-alkali land and watery land are not suitable for planting.

Second, soil preparation and fertilization. Choose a suitable field and cultivate it carefully. Combined with soil preparation, ∶ applied 3000 kg of soil miscellaneous fertilizer, 20 kg of urea and 50 kg of phosphorus and potassium fertilizer per mu. Then make beds and wait for sowing.

Third, sow seeds. Patrinia angustifolia is propagated by seeds. The sowing time is divided into autumn sowing and spring sowing. Autumn sowing before Frosts Descent, spring sowing before and after the Qingming Festival, sowing first opened a shallow trench on the finished border surface, and then sowed the seeds evenly into the ditch. Cover the soil, water and preserve the soil moisture to facilitate the emergence of seedlings. The sowing rate is 1 kilogram per mu.

Fourth, field management. After the seedlings of Patrinia angustifolia, attention should be paid to ploughing and weeding. It is often watered in dry weather and drained in time in cloudy and rainy weather. Topdressing once before and after closure: 10 kg of urea and 5 kg of potassium dihydrogen phosphate per mu.

Fifth, pest prevention and control. Most of the weeds are wild, and no diseases and insect pests have been found. If found, timely prevention and control according to the conventional method.

Sixth, harvest and processing. South abortive sauce grass is generally between Lesser Fullness of Grain and Grain in Beard. The seeds are harvested when they are mature. When harvested, the plant is uprooted or cut off, dried in the sun and sold in medicine. The yield is 400 kilograms per mu.