How to carry out field management by Huang Jing
(1) weeding should be carried out frequently after weeding and emergence, especially at the seedling stage of sowing fields, so as not to bully the seedlings and affect their growth.
(2) the seedlings were too dense when the height of the seedlings was 5-8 cm, and the seedlings were fixed according to the plant spacing of 8-10 cm before withering in autumn or after emergence in the following year. Take the seedlings from time to time to different places for transplanting.
(3) drought prevention and drainage Huang Jing likes the soil moist, timely watering in case of dry weather to keep the soil moist; drainage in the rainy season to avoid stagnant water in the field and prevent rotting roots.
(4) topdressing 15002000 kg / mu of ring manure or 50kg / mu of fully mature cake fertilizer every spring.
(5) planting Polygonatum polygonatum in farmland and corn beside the border in spring to shade the border and keep the soil moist.
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Morphological characteristics of Polygonatum sibiricum
Polygonatum for perennial herbs, rhizomes transverse, fleshy, pale yellow, apex sometimes prominent like chicken head shape, stem erect, 50-90 cm high. Impellers, 4-6 per whorl, linear-lanceolate, 8-15 cm long, 04-1.6 cm wide, apex curled. Flowers axillary, often 2-4 florets, pendulous, total pedicel 1-2 cm long; perianth tubular, white to yellowish, 0.9-1.2 cm long, apex 6-lobed, stamens 6, filaments shorter, 0.5-1 mm long, style long
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Varieties and varieties of Polygonatum polygonatum
According to different characters, Rhizoma Polygonatum commodities can be divided into three categories: "chicken head Huang Jing", "ginger shaped Huang Jing" and "rhubarb essence". Polygonatum polygonatum is irregularly conical, with a large head and a thin tail, similar to the chicken head. Long 3~10cm, diameter 0.5~1.5cm. The surface is yellowish white to yellowish brown, translucent, all with fine wrinkles and slightly raised wavy links, the aboveground stem scar is disc-shaped, the center is often sunken, and the root scar is mostly punctate. The cross section is light brown, slightly horny, and has many yellow-white punctate veins (vascular bundles). Slight, sweet and sticky
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