The growth habit of Polygonatum polygonatum planting technique

Growth habits: wild in damp mountain shrubs and forest grass, cold-tolerant, seedlings can survive the winter in the field, but not suitable to grow in dry areas, seed germination time is longer, germination rate is 60-70%, life span is 2 years. Planting techniques: ploughing and weeding in April, June, September and November every year, combined with reasonable topdressing in mid-ploughing, keeping the field moist, watering in time in dry climate, timely drainage in rainy season, picking flower buds in time before bud formation, and actively preventing and controlling diseases and insect pests.

The shape of Rhizoma Polygonatum is irregular, generally yellowish brown is more common. Rhizoma Polygonatum is famous for its high utility value and is a common variety of traditional Chinese medicine. At present, Polygonatum polygonatum is grown in many parts of our country, and many people want to plant it. Then before planting, we must have an in-depth understanding of Polygonatum.

Planting technique of Polygonatum polygonatum

The main results are as follows: 1. Choose the moist and shaded land, and the loam or sandy loam with loose texture and good water retention is suitable for the soil. Before sowing, first turn deeply once, combined with land preparation, apply farm manure 2000 kg per mu, turn into the soil as base fertilizer, and then rake fine leveling, make the border, the width of the border is 1.2m.

2. In the early stage of growth, the weeds should be ploughed and weeded frequently, once a year in April, June, September and November, shallow hoe and proper soil cultivation should be carried out, and weeds should be pulled in the later stage. In case of drought or the need for timely watering in sunny and dry places. Topdressing is carried out in combination with ploughing and weeding every year. Huang Jing avoids water and shade, and should pay attention to drainage and intercropping corn.

3. The quality of autumn harvest is the best. After 3-4 years of cultivation, the aboveground part of Polygonatum polygonatum withered and harvested.

4. General harvest in spring and autumn, good harvest quality in autumn, harvest after aboveground withered in autumn for 4 years, dig roots, remove aboveground parts and whisker roots, wash off soil, steam in steamer until oily, take out to dry or dry, or boil in water, remove and dry.

5. Rhizoma Polygonatum can be propagated by rhizome and seed, but it is better to use rhizome in production. In late autumn or late March in early spring, strong and disease-free plants can be selected to dig underground rhizome as propagation material and planted directly.

Growth habits of Rhizoma Polygonatum

Rhizoma Polygonatum is born in shady mountain shrubs and grass on the edge of the forest. it is hardy and the seedlings can survive the winter in the field, but it is not suitable to grow in dry areas. The seed germinates for a long time, the germination rate is 60% Mui 70%, and the seed life is 2 years.

Field Management of Huang Jing

1. Intermediate ploughing and weeding: during the growth of Polygonatum polygonatum plants, ploughing and weeding should be carried out frequently, once a year in April, June, September and November, and shallow hoeing should be carried out so as not to hurt the roots, and properly cultivate the soil to promote strong plants, and pull up weeds in the later stage.

2. Reasonable topdressing: Polygonatum polygonatum combined with intertillage for topdressing every year, applying 1000-1500 kg / mu of high-quality fertilizer for people and animals, 1200-1500 kg of high-quality farm manure before winter, and mixed with 50 kg of superphosphoric acid and 50 kg of cake fertilizer.

3. Timely drainage and irrigation: Huang Jing likes to be wet and afraid of drought, the fields should always be kept moist, and the fields should be watered in time in case of drought, but in the rainy season, it is necessary to prevent stagnant water from draining in time so as not to cause rotting roots.

4. removing flowers: Polygonatum flowers and fruits will consume a lot of nutrients and affect the growth of rhizomes. Therefore, it is necessary to pick the flower buds in time before the formation of flower buds to promote the concentrated transfer of nutrients to the rhizome of the harvest to increase yield.

5. Prevention and control of diseases: Polygonatum leaf spot was controlled with 65% zinc wettable powder, black spot was sprayed with 1-100 Bordeaux solution, grub was mixed with 75% phoxim EC according to seed amount of 0.1% or irrigated with 90% trichlorfon 1000 times during the occurrence period.

Processing and harvest of Rhizoma Polygonatum

Harvest: Huangjing can be harvested in spring and autumn, and the rhizome harvested in late autumn and early winter is fat and full, with the best quality.

Processing: after mining, remove stems and leaves, wash sand, remove fibrous roots, such as growing up can be divided into 2-3 sections, put in a steamer or wooden retort for about 12 hours, and then take out to dry or dry (smokeless, light fire) when it appears oily; or boil it in water, dry or dry, preferably by steaming.

Rhizoma Polygonatum in planting, first of all to understand its growth habits, in the later stage of planting to strengthen field management. Although the cultivation of Polygonatum polygonatum is complicated, it is the key. Only by doing a good job in this work can we ensure the growth of Huang Jing and achieve good economic benefits in the later stage.