Topdressing irrigation method of Schisandra chinensis
Fertilization: after deep ploughing (autumn ploughing), autumn fertilization is carried out, 3~5m3 of farm manure is applied per mu, and it is carried out on both sides of the frame every other year. In the first two years, it is close to the planting ditch wall. After the third year, a ditch with a depth of 60-80cm and a width of 40cm is opened between the rows, and soil is covered immediately after filling. Topdressing twice a year, the first time in the germination stage (early May), topdressing available nitrogen and potassium fertilizer, the second time in the middle stage of plant growth (early July) topdressing available phosphorus and potassium fertilizer. With the tree body expanding, the fertilizer dosage increases year by year, ammonium nitrate 25- 100g/plant, calcium superphosphate 200- 400g/plant, potassium sulfate 10 - 25g/plant.
Irrigation: depending on the conditions, it is best to irrigate frozen water once in late January, irrigation is best after fertilization, or irrigation after thawing in early May, irrigation of fruit water from late May to mid-June, and irrigation once again in June and July if the rain is insufficient.
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Transplanting of wild Schisandra chinensis
In forest areas, especially in the forest farms with concentrated growth of Schisandra chinensis, wild Schisandra chinensis seedlings can be dug and transplanted directly into the field in autumn. When the leaves fall in autumn or before freezing, choose 1-2-year-old strong seedlings of Schisandra chinensis, each plant should leave 30-35 cm long rhizome, in order to ensure the survival rate after planting. If it is too late to transplant in winter, you can fake the wild seedlings and transplant them in the spring of the following year. You have to make sure you have enough water. Therefore, winter irrigation should be carried out if possible after transplanting in autumn. At the same time, in order to ensure that the transplanted seedlings are not
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Seed treatment method of Schisandra chinensis
After the fruit of Schisandra chinensis was ripe and harvested, the full, large and disease-free Schisandra chinensis fruit was soaked in warm water (40 ℃ 45 min) for 3 days, the pulp was rubbed, the seeds were selected, and then the blighted seeds were removed by water selection and stored in a ventilated and dry place. The method of stratification treatment is to fully mix the prepared seeds with 3 times the mass of wet sand, the humidity of the sand can not be pinched by hand, dig the potholes of 60cm × 60cm × 60cm, the thickness of seed and sand mixture 40cm buries the soil 15cm, and then cover it.
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