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怎样识别复合肥的三要素含量?如磷酸二铵袋上标有(18—46—0)。这就是分别指氮—五氧化二磷—氧化钾在肥料中的百分比,也就是说其中含氮18％、五氧化二磷46％。因不含钾,称为二元复合肥。三元复合肥目前绝大多数是从西德、希腊、意大利等国进口的,其包装上大都注有(××—××—××S),如(15—15—12S),是指含氮15％、五氧化二磷15％、氧化钾12％,S代表含量的意思。有的多元复合肥还含有钼、
How to identify the three elements of compound fertilizer content? Ammonium phosphate bags marked (18-46-0). This means, respectively, the percentage of nitrogen-phosphorus pentoxide-potassium oxide in the fertilizer, which means that it contains 18% nitrogen and 46% phosphorus pentoxide. Because of non-potassium, known as binary compound fertilizer. The vast majority of ternary compound fertilizer is imported from West Germany, Greece, Italy and other countries, most of the packaging Note (XX - XX - XX S), such as (15-15-12S), refers to Nitrogen 15%, phosphorus pentoxide 15%, potassium oxide 12%, S on behalf of the meaning of content. Some compound fertilizer also contains molybdenum,