Question

Difference between bray and olsen method for phosphorus estimation and soil

Answer 1

Explanation:

Extensive research has shown that the Bray-P1 test is reliable on neutral or acid soils but that it tends to underestimate available P on calcareous soils. The Olsen test is more reliable for calcareous soils. Because of this problen~, many routinc soil testing laboratories often use both methods.