土壤改良剂和生长剂 可溶性氯化钙/DTPA(CAT)元素的提取
Bodenverbesserungsmittel und Kultursubstrate. Extraktion von in Calciumchlorid/DTPA (CAT) loeslichen Naehrstoffen Soil Improvers and Growing Media-Extraction of Calcium Chloride/DTPA (CAT) Soluble Nutrients Amendements du sol et supports de culture. Extraction des elements nutritifs solubles dans le chlorure de calcium/DTPA (CAT)
摘要: This European Standard specifies an extraction method for the routine determination of calcium chloride/DTPA (CAT-method) extractable nutrients and elements (as listed in annex B) in soil improvers or growing media. The method is not applicable to liming materials and preformed materials such as mineral wool slabs and foam slabs. NOTE The requirements of the standard may differ from the national legal requirements for the declaration of the products concerned.