Fertilizers analytical procedures phosphorus

Detailed analytical procedures have been evolved for the estimation of phosphorus in such diverse materials as drinking water, sea water, food products, plants, concrete, ores and rocks, oils, metals, pesticides and fertilizers. Each of these materials has its own special analytical requirements. In the case of fertilizers, for example, it is usual to estimate (a) water-soluble phosphate which relates to available phosphorus and (b) citrate-insoluble phosphate which is a measure of the phosphorus which plants cannot utilise. In the case of seawater, both dissolved P and particulate P content may be estimated. 

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See also in sourсe #XX -- [ , , , , ]

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