1, seed selection: select the mature fruit of wild longan tree, select the big fruit, and peel off the shell and pulp one by one;

2. Seed treatment: the selected seeds should be washed with clear water immediately, and the pulp and sugar on the fruit particles should be washed clean, so that no ants will invade after sowing;

3. Germination of sand bed: Germination is completed in the sand bed. The sand bed needs clean river sand with moderate thickness, and the sand should maintain a certain humidity. The bed width is between 80 cm-1m. First, spread a layer of bottom sand with a thickness of 3 cm, sprinkle seeds on the bottom sand, and then spread a layer of river sand with a thickness of 3 cm as a surface sand cover;

4. Sand bed management: check every day after 3 days of germination, and spray water to moisturize during sand bed period. After about 5 days, the germ began to sprout and take root. When the germ roots grow to 3 to 5 cm, you can pick out the seeds and prepare them for sowing. Be sure to sow before the top bud of the seed bud opens, and sow after the leaf opens. Low survival rate and slow growth.