Cultivation technique of Polygonatum polygonatum planting time and method

Rhizoma Polygonatum is a famous traditional Chinese medicine, which can be seen in many parts of our country at present. Rhizoma Polygonatum has high medicinal efficacy, and its sales in the market are also very good. At present, many people have the idea of planting Polygonatum. It is necessary to understand its planting techniques before planting.

Cultivation techniques of Rhizoma Polygonatum

I. selection and preparation of land

Choose moist and fully shaded plots, and the soil should be loam or sandy loam with loose texture and good water retention. 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.

Second, the mode of reproduction

1. Rhizome propagation: select 1-2-year-old rootstock with no diseases and insect pests in late autumn or early spring before and after late March, select the tender part of the apex, cut into several sections, each section has 3mur4 sections, the wound is slightly dried, according to the row spacing 22m 24cm, the plant spacing 10cm 16cm, the depth 5cm planting, after covering the soil slightly suppressed and watered, and then watered once every 3 days to keep the soil moist. When planting at the end of autumn, cover some circle fertilizer and grass after freezing to keep warm.

2. Seed propagation: the mature and full seeds were selected for sand storage treatment immediately after the seeds matured in August: 1 seed and 3 sandy soil were mixed evenly. Store in a pit 30cm deep in the shade and keep it moist. To sift out the seeds in late March of the following year, sow the seeds evenly into the shallow ditch on the border surface according to the row spacing of 12: 15 cm, cover the soil with about 1.5 cm, water it slightly, and cover it with a layer of grass to moisturize. Remove the cover grass before emergence. When the seedling height is 6ml / 9cm, the seedlings can be planted in a dense place and transplant one year later. In order to meet the shading conditions for the growth of Polygonatum polygonatum, corn can be planted on the ridge.

Planting time of Rhizoma Polygonatum

Huang Jingxi has warm and humid climate and humid environment, cold tolerance and strong adaptability to climate. He can choose semi-alpine or flat soil to cultivate in deep, fertile, loose and moist soil.

Planting method of Rhizoma Polygonatum

1. Land selection and land preparation: Polygonatum polygonatum is planted in moist and shaded plots, and the soil should be loam or sandy loam with loose texture and good water retention, combined with 2000 kg of farm manure per mu to be turned into the soil as base fertilizer, and then raked fine and leveled to make the border.

2. Seedling transplanting: Polygonatum polygonatum transplanting in the north is mostly carried out at the beginning of April, digging holes according to row spacing of 30 cm and plant spacing of 15 cm on the whole planting plot, and then planting the seedlings into the hole, 2 plants in each hole, covering the soil and compacting, watering once.

Pest control techniques of Rhizoma Polygonatum

1. Rhizoma Polygonatum black spot. The main disease of Polygonatum polygonatum, the pathogen is a kind of half-known fungus in fungi, which harms the leaves. At the initial stage of the disease, irregular yellow-brown spots appear from the leaf tip, and there is a purplish red edge at the junction of the disease part; later, the disease spot spreads downward, and the rainy season is more serious. The leaves of the diseased part are withered and yellow.

Prevention and control methods: clear the garden during harvest, eliminate the disease and residues, spray 1 ∶ 1 ∶ 100 times Bordeaux solution or 50% bacilli 1000 times solution before and at the initial stage of the disease, once every 7-10 days, several times in a row.

2. Grub: it belongs to the family Coleoptera. Damage to the larvae, bite off the seedlings or eat the roots of the seedlings, resulting in broken seedlings or root cavity, the harm is serious. Kill tigers with the same drugs or with pesticides with conventional low-toxic pesticides.

3. Ground tiger: harms seedlings and rhizomes. Control methods: 75% phoxim EC can be used to mix seeds according to 0.1% seed quantity; during the field occurrence period, 90% trichlorfon is irrigated with 1000 times liquid; adults are trapped and killed with black light or poison bait; manure should be fully mature, preferably compost at high temperature.

Rhizoma Polygonatum can be cultivated in early autumn every year, and site preparation should be carried out before cultivation. In fact, as long as you master the essentials, it is relatively easy to grow. Huang Jing prefers to be attacked by insect pests, so it is necessary to do a good job in the prevention and control of insect pests and diseases in the later stage.