How to plant Polygonatum sibiricum? What soil is suitable for?

The necessary soil quality regulations for planting Polygonatum sibiricum: like sandy soil with good shading, moist, loose and weak water-locking ability. Polygonatum rhizome can be harvested in 1-2 years if it is cultivated, and it must be harvested in 3-4 years if it is cultivated and propagated, and it can be harvested in autumn and spring within one year. Generally people will choose autumn, and the quality of harvest is better. There are generally two methods for planting Polygonatum sibiricum, seed sowing and rhizome propagation, but we usually choose rhizome propagation. The duration of rhizome planting can be autumn and spring, and spring can generally be in the middle and late March. It can be planted with a row spacing of 30 cm and a plant spacing of 15 cm. Once planted, it is permeable to water and conducive to germination. The application of this propagation method has the advantages of fast speed, short harvest time and good economic benefit.

Polygonatum sibiricum can be propagated by cutting roots, but the survival rate and yield are very poor. It is recommended that you use seeds to propagate and sow. Soak the prepared Astragalus membranaceus in warm water for one day in advance, and then sow it with part of culture soil or sand, which is convenient for sowing. You can add some triadimefon to prevent germs, and you can sow after mixing well. The purpose of the middle and late stage is to cultivate soil and weed, use fertilizer and water and prevent diseases. According to the field conditions, soil cultivation and loosening can be carried out once every 1-2 months, during which fertilization and watering can be carried out, and both organic fertilizer and phosphorus and potassium fertilizer can be used, and fertilizer efficiency and water can be moderately increased in the middle and late stages.

Pests and diseases include brown spot, brown spot and so on. In addition to underground pests, it is necessary to spray preventive drugs immediately, and more importantly, clean the garden as early as possible when planting. Vitex negundo can be harvested in spring and autumn, and the underground stems harvested in late autumn and early winter are plump and round, with the best quality. Polygonatum rhizome planting 1 ~ 2 years harvest; Sow for 3-4 years and harvest. Dig out the roots in late autumn or early spring, clean up the soil and remove the roots and scars. Polygonatum sibiricum, also known as immortal surplus grain, is a woody plant that has grown for many years. Its rhizome is used as medicine, which has the functions of nourishing qi and blood, nourishing yin, strengthening spleen and stomach, moistening lung, relieving cough and tonifying kidney. It is an ideal nourishing product for middle-aged and elderly people, and there is no adverse reaction that may be caused by the product of nourishing and warming dryness.

Polygonatum sibiricum has a long growth cycle, with the full flowering period from May to June and the fruiting period from June to July. It takes 2-3 years for rhizome propagation to have medicinal value, while the growth cycle of seed propagation is nearly 5-6 years. There are many varieties of Polygonatum sibiricum, which are generally distinguished by shape and taste. According to the shape, it can be divided into three types: ginger-shaped Polygonatum odoratum, Polygonatum odoratum with the head of a chicken and rhubarb essence; The original plant of Polygonatum sibiricum is Polygonatum multiflorum, Polygonatum sibiricum is Polygonatum sibiricum and Polygonatum yunnanense is Polygonatum sibiricum. Among them, the quality of ginger-shaped Polygonatum is used; According to taste, it can be divided into sweet Polygonatum odoratum and bitter Polygonatum odoratum.