论文部分内容阅读
脱毒甘薯秧翻蔓、提蔓的栽培技术比较试验结果表明：翻蔓造成大幅度减产，提蔓能拉断腰根，使养分集中于主根，增产效果显著。
Virus-free sweet potato seedling mulberry, manchurian cultivation techniques comparative test results show that: turn over caused a significant reduction in production, mention Manneng pull off the root, the nutrients concentrated in the main root, yield significantly.