市售水耕蔬菜中農藥殘留量之調查

SURVEY OF PESTICIDE RESIDUES IN WATER-CULTURED VEGETABLES

台灣因地處亞熱帶，病、蟲、雜草容易孳生繁衍，農作物若不使用農藥防治，常會損失嚴重，甚或無法收成，所以藥劑防治在作物裁培管理上仍佔極重要地位。在消費者希求選購無病斑、無蟲孔的誘因之下，偶有濫用農藥之報導，反而使消費者更加不知如何選購。因此標榜不需噴灑農藥、零污染的水耕蔬菜就成為蔬果市場的新寵兒。水耕蔬菜就是將植物生育所必需的養分，以培養液形態供給植物吸收利用的栽培方式。與傳統的土耕方式比較，具有養分供應均衡而迅速，縮短生育期及可以連作等優點。水耕蔬菜通常外觀乾淨又美觀，但價格較傳統土耕蔬菜為高，可說是一種頗受消費者歡迎的'貴族蔬葉'。

The pesticide residues in 100 samples of water-cultured vegetables were collected from supermarkets and analyzed with a multiresidue method including 23 times from July 1991 to June 1992 in Taiwan. The results showed that 4 of 100 samples (4%) contained pesticide residues which were all Iprodione, and the range was 0.22～0.53 ppm.