Correct

块根

/ kuàigēn / 
Strokes

Definition

root tuber/tuberous root

Example

As a Noun

root tuber

1
Kuàigēn
块根
wājuéjī
挖掘机

root digger/lifter

2
Kuài
块
gēn
根
qiēxǐjī
切洗机

root cutter-and-cleaner

3
Kuài
块
gēn
根
qiēsuìjī
切碎机

root chopper/cutter/shredder

4
Kuài
块
gēn
根
qiēpiànjī
切片机

root slicer; root slicing machine