Measurement Significance: Soil Soil Phosphorus includes organophosphorus and inorganic phosphorus, wherein the inorganic phosphorus can be directly utilized.Soil organophosphorus is converted into inorganic phosphorus by mineralization decomposition.At the same time, the salivaphosphate, organic phosphorus and inorganic phosphorus were measured, and the soil phosphorus nutrition conditions can be fully reflected.

The principle of assay: the use of molybdenum blue legal phosphorus.Take a piece of earth S, determine the content of soil inorganic phosphorus by leaching method; another earth S, after high temperature burning, soil organophosphorus is converted into inorganic phosphorus, measure the total phosphorus content of soil; total phosphorus content minus inorganicThe phosphorus content can be calculated to calculate the organophosphorus content.

\u0026 NBSP; required instruments, supplies: visible spectrophotometer / enzyme standard, trace glass cuvette / 96-well plate, desktop centrifuge, adjustable water bath, analysis balance, adjustable pipette, 550 ° C high temperature furnace, distilled water, 100 mesh sieve (smaller).

 

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