1, seed treatment: seeds before sowing with 50 ℃ soaking in a thermos flask soaking 12 hours, poured out for 1 hour, and then add the same water temperature by adding 0.1% ferrous sulfate and potassium dihydrogen phosphate, and then into the thermos flask Soak for 12 hours, can be used for planting.
2, sowing methods: sowing on-demand, casing 2cm, 30 ~ 33 ℃ in the high temperature, two weeks can germinate. Seedlings 2 to 4 years before transplanting.
Second, sand processing, in the spring on-demand:
1, seed treatment: choose not more than two years of full seeds, soaked with warm water at 50 ℃ for 24 hours, and then dilute hydrochloric acid or sulfuric acid soak 10 to 15 minutes, and then rinse with water, soaking every other day for water , Until the seed coat completely softened after swelling, artificial peeling off the outer skin, washed away the pulp, the seeds to dry, and then stored well;
2, sowing methods: to December before and after seed sand processing, first prepared seeds into the bed, about 3 cm deep, then cover the thickness of 3 cm of sand. General sand to 4 to 6 months time, during which to maintain the appropriate temperature 18 ~ 25 ℃, relative humidity 80 ~ 90%, and do a good job in winter insulation, not less than 12 ℃. The second year 5 ~ June seed germination broken shell out, 7 ~ August germination of a true leaf, you can transplant.