Management techniques in the growing period of medicinal plant Schisandra chinensis

Schisandra chinensis alias Xuanji, Huihe, Wumeizi, Shanhua, Zhuangwei, Wuwei, pomegranate, etc., Tang and other "newly revised herbs" carry "Wuwei flesh sweet and sour, nuclear hard, all have salty taste", so it has the name of Schisandra chinensis. Schisandra chinensis is divided into two kinds: the south and the north. The ancient medical books call it "Xuan", "Xuanhe" and "Huihe". It was first listed in the top grade of Shennong Materia Medica Sutra. The effect of traditional Chinese medicine is to nourish the strong power, has high medicinal value and has the effect of strengthening the body.

Water management: in the first year after planting, water should be watered many times to ensure soil water content, so as to ensure the survival rate of seedlings and the normal growth of young trees. When the tree enters the fruiting stage, in the normal year, it is necessary to ensure that the water before flowering, post-anthesis water, fruit expansion water and frozen water are watered for 5 times, combined with mid-tillage and weeding. Immediately after watering, loosen the soil and preserve soil moisture to prevent soil consolidation.

Fertilization management: the first year of planting should be in the first and middle of June, urea 15-20kg should be applied every 667m2, and phosphorus and potassium fertilizer and urea 20kg should be applied in the first ten days of May in order to promote growth, expand tree crown and reach yield as soon as possible. After 3 years of age, in addition to applying chemical fertilizer, base fertilizer should be applied in the early and middle of October to ensure soil fertility. For the gardens with high yield and weak tree potential, 5 ‰ urea solution can be used for foliar fertilizer spraying.

Intertillage weeding: although five leaves belong to wild plants, after they are introduced into the field, attention must be paid to intertillage weeding so that they can grow normally, bear fruit early and reach yield as soon as possible. Weeding in the middle tillage can also be combined with irrigation and fertilization, which can be carried out 4 times a year. The first time should be combined with fertilization to loosen soil and preserve soil moisture before germination; the second time should be combined with irrigation in mid-May, the third in late June, and the fourth in mid-July. In short, there can be no grass shortage in the garden, in addition to reducing the consumption of soil nutrients, it can also reduce the occurrence of diseases and insect pests.

Diseases: leaf blight began to occur in mid-early July and can be controlled with 0.01% solution of 5% methyl topiramate, and powdery mildew can be sprayed with solution of 25% strychnine 0.125% mae 0.167%. The above two diseases can also be controlled with 200 times Bordeaux solution in mid-June, and the effect is very good.

Insect pests: Schisandra chinensis pests are less, generally do not occur, if sporadic occurrence can be manual capture, if a large area occurs, zinc parathion, enemy killing and other low-toxic pesticides can be used to control, but one month before harvest, all kinds of pesticides must be stopped to avoid pesticide residues and affect the quality of drugs.