Detailed Explanation of Polygonum multiflorum Planting Techniques and Field Management Methods

AbstractSite selection and planting: The soil should be loose, fertile, well-drained, half-mud half-sand soil. Land preparation and fertilization: Deep plow, apply fertilizer, and make beds, planting with a row spacing and plant spacing of 27cm. Planting time: Suitable for planting from March to May. Trellising and vine guiding: After planting, trellises can be set up, and when the seedlings grow to 34cm, manual vine guiding begins. Reasonable watering and fertilization: During the seedling stage, apply diluted farmyard manure; in May of the following year, apply farmyard manure again; in September to October, apply stable manure, and water immediately after fertilizing.

I. Site Selection and Planting

1. Wild Polygonum multiflorum often grows on hillsides, roadsides, ravine edges, bushes, and other places. It is suitable for growing in humid and mild environments. Polygonum multiflorum has good adaptability, and most soils can be used for planting.

2. Polygonum multiflorum should be planted in areas with a warm, humid climate. It is averse to waterlogging and dryness. Before planting, it is best to choose fertile, loose, sunny, well-drained, moist half-sand half-mud soil for planting. It should not be planted in hard, clayey, coarse-sand barren hill land.

II. Land Preparation and Fertilization

After selecting the planting site, the soil should be plowed, with deep plowing of about 50cm, then left to dry in the sun. Apply base fertilizer, mainly compound fertilizer, about 30-60 kg, then make beds with a bed width of about 67-83 cm and a bed height of about 27cm. Plant in double rows, with a row spacing of about 27cm and a plant spacing of about 27cm. Alternatively, with a plant spacing of about 27 cm, marginal land can also be used for planting.

III. Planting Time

Generally, Polygonum multiflorum is suitable for planting from March to early May. The climate during this period has sufficient rain and just the right temperature and humidity, which helps improve the survival rate after planting. It can also be planted in summer from June to July. At this time, the temperature is relatively high, so appropriate shading should be provided, otherwise the plants are not easy to survive. Generally, three methods can be used for propagation: division, cuttings, and seeds.

IV. Trellising and Vine Guiding

After the plants are planted, a fence-style vine trellis or an A-frame trellis can be set up. When the seedlings grow to about 34cm, manual vine guiding onto the trellis can begin. Before that, only 1-2 strong seedlings need to be kept on the trellis, and other excess side seedlings should be pruned in time. Note that when manually guiding vines onto the trellis, the vines should be guided onto the trellis with a rightward twist, not a leftward twist.

V. Reasonable Watering and Fertilization

Polygonum multiflorum needs sufficient fertilizer during the growing period. Before planting, sufficient base fertilizer should be applied. During the seedling stage, to promote seedling growth, apply diluted farmyard manure once. In May of the following year, apply farmyard manure once again, and water immediately after fertilizing. By September to October, apply 15,000-22,500 kg of stable manure per hectare.

VI. Harvesting and Storage

Generally, when Polygonum multiflorum grows to 20-30 cm, the tender stems and leaves can be harvested. After 3-4 years of planting, the tuberous roots can be harvested in autumn. They can be eaten fresh or sliced and dried. The stems and vines can be cut after leaf fall in the following autumn. Remove residual leaves and fine branches, cut into 70cm stem sections, tie them up, and after drying in the sun, they can be used as medicine.