1.前言南京土壤研究所著“土壤理论分析”一书中,复合肥料或混合肥料中全氧化钾测定的操作规程是:称0.3克(精确到0.0001)样品置于100ml烧杯中,加6～7滴浓盐酸和蒸馏水20ml,盖上表玻璃,用低温煮沸10分钟,然后用水洗入100ml量瓶中,并加水定容至刻度, 1. Introduction Nanjing Soil Research Institute of soil theory, "a book, the compound fertilizer or fertilizer all-potassium determination of the operating procedures are: Weigh 0.3 grams (accurate to 0.0001) samples were placed in 100ml beaker, plus 6 ~ 7 drops of concentrated hydrochloric acid and distilled water 20ml, cover glass, boiled with low temperature for 10 minutes, then washed with water 100ml flask, and add water to the mark,