甘薯栽培的重要环节之一是使秧苗迅速缓苗,尽早开始干物质生产。在日本有经验的农民往往在拔苗后将秧苗存放数日。笔者为了深入研究秧苗存放的意义,在前几报中曾报告了“存放虽使秧苗发根数减少,但却促进了根的伸长和总根长的增加”及“存放促进了地膜覆盖栽 One of the most important aspects of sweet potato cultivation is to make the seedlings quickly rejuvenate and start dry matter production as soon as possible. Farmers who are experienced in Japan tend to store the seedlings for several days after plucking. In order to further study the significance of seedling storage, the author has reported in previous reports that although the number of seedling root growth was reduced, the root elongation and total root length were increased, and the storage was improved