[1月~2月]做好播种前的准备工作,包括种子的选购,播种容器和播种土的配置、消毒,以及播种压板和铜细筛等。北方地区室温在15℃~20℃时,采用室内盆播育苗,种子细小,喜光,播后不必覆土。发芽适温为18℃C~21℃。约7天~21天发芽,幼苗生长迅速,需及时间苗。长江流域地区做好春播育苗的准备。[3月~4月]长江流域地区开始播种繁殖,方法 [January ~ February] Prepare well before sowing, including the purchase of seeds, disposition of sowing containers and sowing soil, disinfection, sowing plank and fine copper sifter. The northern region at room temperature at 15 ℃ ~ 20 ℃, the use of indoor potted seedling, small seeds, hi light, after sowing do not have to cover the soil. Germination temperature is 18 ℃ C ~ 21 ℃. About 7 days ~ 21 days germination, rapid seedling growth, the need for time and seedlings. The Yangtze River Basin Spring Sowing Breeding Ready. [March-April] The Yangtze River Basin began sowing and breeding methods