Introduction to the technical points of artificial management of wild schisandra chinensis

There are still many wild natural associations of Schisandra chinensis in Northeast and Northwest China. Home management of these wild Schisandra chinensis can obviously increase the yield and quickly receive economic benefits. The main technical points of manual management of wild Schisandra chinensis are introduced below.

1. Clear forest and flat stubble. Qinglin is to clean up the plants that compete with Schisandra for water, fertilizer and glory, including trees and weeds that hinder the growth and development of Schisandra chinensis, so as to ensure ventilation and light transmission. Clean it up every spring. The flat stubble is to flatten out the new young branches after clearing the forest, especially the large number of tillering buds around the Schisandra chinensis plant. A flat stubble is held in May and August every year. After flat stubble, the height of stubble is less than 7 cm. Clear forest and flat stubble are directly related to the density and crown width of Schisandra chinensis, the amount of light, the selection and retention of stents, the strength of growth, the level of ground temperature, the renewal of Schisandra chinensis and the quality of Schisandra chinensis, which is the key to high yield. Some data show that after clearing the forest, the average fruit rate is 78.4%, the average fruit rate of the uncleared forest is 37.7%, and the result rate is increased by 40.7%. Clear forest and flat stubble are beneficial to photosynthesis and make Schisandra chinensis seeds full and good medicinal properties.

two。 Planting and planting. Practice has proved that it is appropriate to keep 700-800 plants per mu of sloping land (horizontal). While clearing the forest and stubble, the bracket is selected according to the spacing of 160-270 cm. It is appropriate to climb 2-3 trees with one support, and choose natural trees as far as possible. If there is a vacant area in the natural association, carry out artificial planting: search the densely planted Schisandra chinensis; pay attention to the root system when searching the pocket, and plant the seedlings with complete root system and strong rattan into the vacant area. It should be planted in spring and autumn, 2 plants per hole before sprouting in spring and deciduous leaves in autumn. To protect the whole seedling.

3. Afforestation and construction. The tree species of natural support have a great influence on the growth and development of Schisandra chinensis, the general shrub is better than the tree, and the bark is rough than smooth. Such as mangrove, smelly plum tree, chestnut tree, etc., the crown is open, ventilation and light transmission is good, so that the proportion of female flowers of Schisandra chinensis is large, and generally bloom two days earlier. If the poplar and forged trees of broad-leaved trees are used as natural scaffolds, the opening degree is small, the ventilation and light permeability is poor, the proportion of female flowers is small, and the florescence is 1-2 later.

4. Pruning and control. Pruning and control can reduce unnecessary consumption, make plant nutrients reasonably distributed, and thus increase yield. Cut off dense branches, thin branches, disease and insect pests branches, short fruit branches. It is appropriate to trim the bracket to a height of 1.6-2 meters. Adopt the way of beheading and beating the heart to make the natural support have a strong "skeleton", neat tree shape and plump crown to meet the elongation of Schisandra chinensis.

5. Ventilation and light transmission. Ventilation and light transmission is an important factor in the normal development of Schisandra chinensis. Water has a great effect on the growth and development of Schisandra chinensis. In general sloping land, barren hills, mixed forests, half-yin and half-sun slopes, the proportion of female flowers of Schisandra chinensis after clearing forest is large, but too much water and stagnant water is not conducive to the growth of Schisandra chinensis.

6. Fertilization and management. Generally, 1000 kg-1500 kg of farm manure can be applied per mu of rice, with more nitrogen fertilizer, phosphorus fertilizer and a small amount of potash fertilizer, and zinc fertilizer can be increased if possible, so as to promote the absorption and utilization of nitrogen, phosphorus and potash fertilizer. Enhance its disease resistance. However, in the later stage of fruiting, it is not appropriate to apply too much nitrogen fertilizer, otherwise it will cause fruit drop. In management, we should mainly do a good job of mowing grass and clearing slopes in spring and autumn.

7. Weeding and pest control. After the artificial transformation of wild Schisandra chinensis into pieces, weeding and miscellaneous vines must be carried out twice a year, and leaf blight, root rot, soybean borer and beetle must be controlled at the same time.