莴笋、药草、白菜和甘蓝都可以通过这种方式培养。植物漂浮在泡沫板上，它们的根悬浮在下面的水里。
Lettuce, herbs, bok choi and kale can all be grown this way. The plants float on a foam sheet, their roots dangling into the water below.
白菜，菠菜，萝卜，土豆都是菜，有的吃根，有的吃筋，有的可以吃叶子，有的还可以吃果子。
Chinese cabbage, spinach radish and potato are vegetable, we eat theirs root, stem, leaf or fruit.
蔬菜受不同程度硝酸盐污染，以根菜类污染最严重，其次是白菜类和绿叶菜类，轻中度污染的是葱蒜类、甘蓝类和豆类蔬菜；
The root vegetables were the worst, and the cabbage and green leaf vegetables were worse than other vegetables, and the onion garlic, kale and Legume vegetables were polluted by nitrate.
小白菜器官中硝酸盐含量表现为：叶柄（茎）﹥叶片﹥根。
The nitrate content of Chinese cabbage organ was: petiole (stem)> leaves> root.
小白菜器官中硝酸盐含量表现为：叶柄（茎）﹥叶片﹥根。
The nitrate content of Chinese cabbage organ was: petiole (stem)> leaves> root.
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