1, select high-quality seeds

Select the new seeds of the year, the seeds should be full, fresh color, reddish-yellow, yellowish-white seed kernel, the purity of more than 98%, germination rate of more than 40%.

2, insulation germination

In order to emerge neatly, need to be germinated. Germination method is: 40 ℃ of warm water, soak the seeds for about 5 minutes, stirring constantly, and then placed in 20 ℃ ~ 30 ℃ of water immersion for 24 hours, the seeds absorb enough water; fish out the seeds, control excess water, put on a clean reed mat, spread 3 centimeters thick, and then covered with a clean cloth, placed in a 20 ℃ ~ 25 ℃ environment of humidification germination. During germination, turn the seeds 1 to 2 times a day, and wash with about 25 ℃ of water 2 to 3 times, control the excess water. When 30% of the seeds germinate, they can be sown.

3, timely sowing

Selected flat terrain, light, well-drained sandy soil and fertile soil as seedling plot, combined with the preparation of fertilizers, spread evenly, turn over. In a 1-meter wide bed according to 30 cm row spacing ditch, ditch width 5 ~ 6 cm, ditch depth of 5 cm, will be well catalyzed seed evenly sown, covered with 2 cm thick soil.