He explains that some of the growing areas in Vietnam are brand new, their soil so fertile that growers needn ’ t apply any chemicals. In contrast, the soil of some of Taiwan ’ s older growing areas has been exhausted, forcing growers to fertilize constantly and virtually “ irrigate ” with pesticides.
范德光指出，越南有些茶區是處女地，土地肥沃，根本不需要灑農藥，反倒是台灣一些老茶區地力早已耗竭，需要一直施肥、「灌」農藥！