这是另一个在马铃薯品种和管理技能减少的原因。
This is another reason for the reduction in varieties and skills of potato management.
目前，哈尔滨近郊最适宜覆膜种植的早熟马铃薯品种是早大白和尤金。
At present, the most popular early mature potato varieties used in Suburb of Harbin are Zaodabai and Youjin.
实验采用相同的马铃薯品种，以使每次试验淀粉和细胞间的相互作用保持相对稳定。
Experiments were carried where the interaction of starch and cell size was kept to a minimum by taking identical materials for each experiment.
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