用新极谱法测定喷施硒叶面肥的农作物含硒量。研究了喷施硒叶面肥后，不同地点、品种、生长期农作物及其部位的含硒量。其中，粮食作物比对照增加３～３２倍，水果增加２～４倍，蔬菜增加７～６０倍。随生长期的延长，农作物含硒量不断增加。不同部位含硒量的顺序为：叶＞茎＞花＞果。喷施次数增加，农作物含硒量也随之增加。 Determination of selenium content in crops by spraying selenium with new polarographic method. The selenium content of crops and their parts in different locations, varieties and growing stages after spraying selenium foliar fertilizer was studied. Among them, food crops increased 3 to 32 times over the control, fruit increased 2 to 4 times, vegetables increased 7 to 60 times. With the growth of the extension of selenium crops continue to increase. Selenium content in different parts of the order: leaf> stem> flower> fruit. Spraying increased the amount of crop selenium also increased.