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Three Serbian standards for the fertilizer quality testing – in Serbian language

In November, ISS published three Serbian standards cited in the Rulebook on the methods of testing plant nutrition agents and soil improvers. These standards, which were previously published in English language, are: SRPS EN 15956:2011, SRPS EN 15957:2011 and SRPS EN 15958:2012.

 

 

The first standard specifies a method for the determination of phosphorus soluble in mineral acids, the second one specifies a method for the extraction of phosphorus soluble in neutral ammonium citrate and the third standard specifies a method for the extraction of water soluble phosphorus.