What is BS EN 15957 - Extraction of phosphorus in fertilizers about?
BS EN 15957 is a standard that serves technical specifications for the extraction of phosphorus in fertilizers for improving the prediction of fertilizer phosphorus availability to plants in agricultural applications.
BS EN 15957 specifies a method for the extraction of phosphorus soluble in neutral ammonium citrate.
BS EN 15957 method is applicable to all fertilizers in respect of which solubility in neutral ammonium citrate is laid down in Regulation (EC) 2003/2003, Annex I (see [2]).
Who is BS EN 15957 - Extraction of phosphorus in fertilizers for?
BS EN 15957 on the extraction of phosphorus in fertilizers applies to:
- Manufacturers of fertilizers
- Dealers and importers of fertilizers
- Testing labs for fertilizers
- Safety assurance services
- Regulatory bodies
Why should you use BS EN 15957 - Extraction of phosphorus in fertilizers?
Phosphorus is a vital nutrient in plants. It is a component of several major plant structural compounds and catalyses the conversion of many vital biochemical reactions. In agricultural applications, the extraction of phosphorus is used to improve the prediction of fertilizer phosphorus availability to plants.
BS EN 15957 provides users with a method for the extraction of phosphorus soluble in fertilizers. BS EN 15957 also provides users with a step-by-step procedure for the method, enabling users to do the method correctly.
BS EN 15957 provides users guidance on principle, sampling, reagents, apparatus, procedure, extraction, and application to fertilizers containing magnesium, enabling users to extract phosphorus soluble in fertilizers.
With obedience and compliance of BS EN 15957, users can extract phosphorus content that assists users in determining the nutritional efficiency of fertilizers in agricultural applications.
What’s changed since the last update?
BS EN 15957:2011 supersedes DD CEN/TS 15957:2009, which is now withdrawn.
Changes in BS EN 15957:2011 include -
- The CEN Technical Specification has been adopted as a European Standard
- The document has been editorially revised