西红柿顶部长着桃子似的凸起,那是点过激素的标志。青菜太绿,绿得发黑,那肯定是化肥过量。绿豆芽光溜溜地不长须根,是因为施过尿素。西瓜瓤长一团一团的茎,是滥施氨肥所致。有害物质在植物体内积存量的平均值由大到小排列为:根菜类、藕芋类、绿叶菜类、白菜类、豆类、瓜类、茄果类。 Tomato peaches like the top of the bulge, it is the point of hormones mark. Green vegetables too green, dark green, it is certainly excessive fertilizer. Mung bean sprouts barely long fibrous roots, because applied urea. Watermelon 瓤 a long ball of stems, is caused by excessive use of ammonia fertilizer. The average amount of harmful substances in the plant body arranged in descending order as: root vegetables, lotus root, green leafy vegetables, cabbage, beans, melons, solanum.