Summary
This 1960 paper by David describes an analytical method using atomic-absorption spectrophotometry to quantify exchangeable cations in soil—specifically sodium, potassium, calcium and magnesium. The work represents an early application of atomic-absorption spectrophotometry to routine soil nutrient analysis, a technique that would become standard in soil science laboratories.
Regional applicability
This methodological paper is geographically generic and not tied to a specific region. The analytical technique described would have had broad applicability to soil testing programmes wherever atomic-absorption spectrophotometry equipment was available, including the United Kingdom.
Key measures
Exchangeable sodium, potassium, calcium and magnesium concentrations determined by atomic-absorption spectrophotometry
Outcomes reported
The paper presents a methodology for determining exchangeable sodium, potassium, calcium and magnesium in soil samples using atomic-absorption spectrophotometry. The work appears to establish analytical procedures for quantifying these key soil nutrients.
Topic tags
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