喷洒植物营养素后稻米、蔬菜、水果中几种微量元素的测定

对施用新型“农药”——植物营养素后几种不同农作物的前处理方法进行了研究,提出了操怍简便、精密、准确的测定方法,为在我国建立评价施药后农作物中微量元素变化水平提供了可靠的测试手段。并通过对施药前后,农作物中锌、铜、铁三种微量元素含量的测定和比较,为植物营养素类“农药”的卫生鉴定提供了新的指标。

Determination of the Trace Elements in Rice,Vegetables and Fruit after Spraying PNE

In the paper, we have studied a various of pretreatment methods for different crops afterspraying a new-type "pesticide" -plant nourishing elements (PNE), and proposed an easy to operate, precised and accurated determining method. In order to establish an evaluating variation standard about trace elements in crops after spraying PNE in China, the study provided a reliable measuring method. Moreover, we determined and compared the contents of three kinds of elements such as Zn, Cu, Fe and provided a series of new indices for hygienic authentication on the "pesticide" before and after spraying it.