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一、促返青萌发。生长期短的药材一般是前一年的夏、秋、冬季种植,第二年的早春开始返青生长,夏季或秋季收获。尽管这些药材比较耐寒,其地上部分往往会在冬季受冻枯死,春季随着气温、地温的不断升高,药材开始重新萌发生长,应抓住这一有利时机进行灌溉追肥,帮助植株尽早返青,枯死的尽早萌发。二,清除防寒覆盖物。栀子、砂仁、佛手等一些多年生常绿药用植物,当土壤温度1℃～2℃时,其根系即开
First, promote green germination. Short-growing herbs are generally the year before the summer, autumn and winter planting, the second year of the beginning of spring back green growth, summer or autumn harvest. Although these medicinal herbs are relatively cold tolerant, their aerial parts tend to freeze and die in the winter. In spring, as medicinal materials begin to germinate and germinate again as the temperature and ground temperature increase, they should seize the favorable opportunity to irrigate topdressing, help the plants to regain their green as soon as possible, Withered as early as possible germination. Second, remove the cold coverings. Gardenia, Amomum, bergamot and some perennial evergreen medicinal plants, when the soil temperature 1 ℃ ~ 2 ℃, the root that is open