Remove clutter, choose clean and full, thousands of grain weight 200g around the seeds, placed in pots or other oil-free containers, first soaked in cold water, and then 50-55 ℃ of warm water hot, constantly stirring, keep 15-20 minutes, natural cooling to 20-30 ℃, soaking 4-6 hours, after fishing and then 1% Potassium permanganate dipped for 20-30 minutes to disinfect and sterilize. Air drying, to half dry can be heated sprout, temperature to 25 ℃ is appropriate. If the amount of seeds is large, when the sprout can be flipped, in order to promote the germination neat, but after the sprout is no longer flipped.