BS EN 17090 is a standard that serves technical specifications for the determination of nitrification inhibitor DMPSA in fertilizers which enables slowing of nitrification rate and retention of nitrogen for a more extended period of time.
BS EN 17090 specifies a method for the determination of nitrification inhibitor 2-(3,4-dimethyl-pyrazol-1-yl)-succinic acid (DMPSA) using high-performance liquid chromatography (HPLC), which applies to all mineral fertilizers.
BS EN 17090 on the determination of nitrification inhibitor DMPSA in fertilizers applies to:
Nitrification inhibitors stop bacteria in the soil from turning ammonium in manure to nitrate. This lowers the likelihood of nitrate leaching and denitrification, both of which take nitrogen from the crop's root zone. DMPSA's nitrification inhibitory action is derived from dimethylpyrazole (DMP), released by soil succinic acid breakdown.
BS EN 17090 provides you guidance on principle, reagents, apparatus, sampling, sample preparation, procedure, calculation, expression of results, precision and test report, enabling you to accurately determine the nitrification inhibitor DMPSA in fertilizers.
BS EN 17090 provides you guidance on the high-performance liquid chromatography (HPLC) method for determining nitrification inhibitor DMPSA. BS EN 17090 also provides you with a step-by-step procedure for the technique that enables you to do the process correctly.
Guidance in BS EN 17090 enables you to effectively slow nitrification by determining nitrification inhibitor DMPSA in fertilizers.
EN 17090:2018