Propagation method of pine red plum: sowing method

The seeds of Pinus koraiensis should be removed first before sowing. Generally, tap water can be used

In order to improve the germination rate, the selected seeds must be refrigerated and germinated, put the seeds in envelopes and refrigerated in a refrigerator at 2 ℃ for 48 hours

The best seedling bed is the screened peat soil, with a thickness of about 10 cm

Because the seeds of pine red plum are very small, they should be mixed with 20 times of fine sand and stirred evenly before sowing on the seedling bed

After sowing, spray water with fog nozzle in time to maintain humidity, and pay attention to heat preservation and proper shading

The emergence rate can reach 80% in about 25 days. Inter seedling and transplanting can be carried out when the seedling height is 5 cm

Propagation method of Pinus koraiensis: layering method

The sprouted long branches are pressed in spring, cut off from the mother in autumn after taking root, and transplanted into pots in the spring of the next year

The layering method is relatively simple, but the reproduction is limited by the number of female parents, and the number of reproduction is relatively small

Management of Pinus koraiensis after reproduction

Songhongmei likes a warm and humid environment with plenty of light. In summer, people are afraid of high temperature and hot sun exposure. In other seasons, they should be given sufficient sunshine and should not be placed in too shady places for a long time

Like moist, but also resistant to certain drought. Keep the soil moist at ordinary times during the growth period, and pay attention to drainage in rainy season to avoid long-term ponding of the soil. Control moisture in winter and keep the soil slightly wet and slightly dry

Pine red plum is not strict with the soil, but it grows best in the slightly acidic soil rich in humus, loose and fertile and well drained. When the soil is alkaline, it should be improved with 5% ferrous sulfate solution, and the pH value should be 6.5-7.0