Soil test for phosphate: New method of chemical analysis of soil for available phosphate is rapid and accurate
Frank T. Bingham, Division of Soils, in the Experiment Station
California Agriculture 3(8):11-14. DOI: 10.3733/ca.v003n08p11.
Not available – first paragraph follows:
A new test for available phosphate in soils requires only standard laboratory equipment. It is rapid, economical and gives a better correlation with pot and field experiments than other extraction methods commonly used.
Frank T. Bingham is Senior Laboratory Technician, Division of Soils, in the Experiment Station, Berkeley.
The above progress report is based on Research Project No. 1157.