Key points of wild home management technology of Schisandra chinensis

There are still many wild associations of schisandra chinensis in northeast and northwest China. Controlling these wild associations can obviously increase the yield and quickly receive economic benefits. The following describes the technical points of artificial management of wild schisandra chinensis.

1. Forest clearing and stubble leveling. Forest cleaning is to clean up the plants competing for water, fertilizer and glory with schisandra chinensis, including trees and weeds that hinder the growth and development of schisandra chinensis, so as to ensure ventilation and light transmission. Clean up once a year in spring. The stubble is to flatten the new young branches grown after clearing the forest, especially the large number of young shoots tilled around the schisandra plants in time. The stubble cutting is carried out once a year in May and August. After stubble cutting, the stubble height is less than 7 cm. Forest cleaning and stubble cutting are directly related to density and crown width of schisandra chinensis, amount of light, selection and retention of support, growth potential, ground temperature, renewal and quality of schisandra chinensis, which are the key to high yield. Some data show that the average fruiting rate after forest clearing is 78.4%, and the average fruiting rate of uncleared forest is 37.7%, and the fruiting rate increases by 40.7 percentage points. Forest clearing and stubble leveling are beneficial to photosynthesis, can make seeds of schisandra fruit plump, and has good medicinal properties.

2. Planting and planting. Practice has proved that 700-800 plants per mu of slope (level) are suitable. At the same time of clearing forest and cutting stubble, support is selected according to the spacing of 160-270 cm. 2-3 trees should be climbed by one scaffold, and natural trees should be selected as far as possible. Artificial planting shall be carried out in the vacant area in the natural community: 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, before germination in spring and when defoliation in autumn, with 2 plants per hole. To preserve the seedlings.

3. Afforestation and framing. The tree species with natural support have great influence on the growth and development of schisandra chinensis. Generally, shrubs are better than trees, and rough bark is better than smooth bark. Such as mangrove, smelly plum tree, chestnut tree, etc., crown opening degree is large, ventilation and light transmission are good, so that the proportion of female flowers of schisandra chinensis is large, and generally flowering two days ahead of schedule. If broadleaf arbor poplar, forge tree to wait to make natural support, open degree is small, ventilated diaphanous, female flower proportion is small, florescence is late 1-2 big.

4. Trim and control. Pruning and control can reduce unnecessary consumption, so that the plant nutrition is reasonably distributed, thus increasing yield. Cut off over-dense branches, thin branches, pest branches, short fruit branches. The height of pruning support should be 1.6 m-2 m. The method of beheading and beating the heart is adopted to make the natural support have 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 for the normal development of schisandra chinensis. Water has a great effect on the growth and development of schisandra chinensis. Generally, the proportion of female flowers of schisandra chinensis is large in slope land, barren mountain, mixed forest, semi-shady and semi-sunny slope land, but excessive water and ponding are 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, more nitrogen fertilizer, phosphorus fertilizer and a small amount of potassium fertilizer can be applied, and zinc fertilizer can be added if conditions permit, so as to promote the absorption and utilization of nitrogen, phosphorus and potassium fertilizer by schisandra chinensis. To enhance their resistance to disease. However, at the late stage of fruiting, it is not advisable to increase nitrogen fertilizer too much, otherwise it will cause fruit drop. The management mainly focuses on mowing and cleaning slopes in spring and autumn.

7. Weeding and pest control. After artificial transformation of wild schisandra chinensis into pieces, weeding and vine mixing must be carried out twice a year, and leaf blight, root rot, soybean moth and beetle should be controlled at the same time.