No abstract

Phosphorus existing under different forms and status in soils is a significantly important nutrient during the growth and development of trees. Spectrophotometry has been developed with many types of reagents to determine phosphorus in environmental samples. Molybdenum blue reaction with ascorbic acid as a reducing agent and antimony tartrate catalyst in strong acid environment gave maximum absorbance wavelength at 890 nm. Under the optimised conditions, this method gave very high recovery efficiency, accuracy and sensitivity (up to 0.06 mgP/L) in determination of Original Research Article