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对现行国标土壤有效磷测定方法进行比较,通过4个不同试验方案测定GBW07417(ASA-16)土壤有效磷含量,结果表明,LY/T1233-1999中盐酸-氟化铵法测定结果与GBW07417(ASA-16)标识值48(±3)mg/kg相符合,说明LY/T1233-1999中盐酸-氟化铵法较其他方法更适合广东地区酸性土壤有效磷的测定。
The soil available P content of GBW07417 (ASA-16) was determined by four different test schemes. The results showed that the results of LY / T1233-1999 determination of hydrochloric acid-ammonium fluoride and GBW07417 (ASA -16) 48 (± 3) mg / kg, indicating that the ammonium chloride-ammonium fluoride method in LY / T1233-1999 is more suitable than other methods for the determination of available phosphorus in acid soils in Guangdong.