How to plant Bletilla striata in plain area?

How to plant Bletilla striata in plain area?

Bletilla prefers warm, cool and humid environment and is not resistant to cold. Often wild on both sides of streams and rivers, in grass on hillsides and under sparse forests in hilly and low mountain areas. In recent years, wild Bletilla striata has been exploited indiscriminately, its output and quality are decreasing year by year, and its price is rising year by year. The existing cultivation techniques are suitable for mountain areas, so it is imperative to find a cultivation technique suitable for high yield of Bletilla striata in plain area.

(1) soil preparation: the depth of soil ploughing is 20cm, and ternary compound fertilizer 50kg is applied per mu. Then turn the ground to mix the soil and fertilizer evenly. Shallow ploughing once before planting, make the soil fine, rake flat, make a high border with wide 100cm, and build three layers of shade net on the border.

(2) Propagation: separate tubers, dig out Bletilla striata in September, choose medium-sized, many bud eyes, disease-free tubers, each with 2 bud heads, dipped in plant ash and planted on the border. Open trench distance 15cm, ditch depth 4cm, put a tuber according to plant distance 8cm, bud up, fill, compaction, watering, covering grass, seedling 120kg per mu.

(3) Management: immediately after Bletilla striata planting, the herbicide glyphosate was sprayed; the first manual weeding was carried out in May; 0.1% potassium dihydrogen phosphate was sprayed once a month, and the second manual weeding was carried out in August.

(4) insect control: irrigate the bed with 50% zinc parathion EC 700x (wt/wt).

(5) harvesting and processing: after 2 years of planting, when the aboveground stems withered in September, the tubers were singly picked, the stems were cut off, soaked in clean water for 1 hour, the soil was washed, 10min was boiled in boiling water, the Kang was taken out to be completely dry, the rough bark and fibrous roots were removed, and impurities were screened out. Wet Bletilla striata 1200kg was harvested per mu.