The equivalence of the Calcium-Acetate-Lactate and Double-Lactate extraction methods to assess soil phosphorus fertility (2018)

van Laak M., Klingenberg U., Peiter E., Reitz T., Zimmer D., Buczko U.

Journal of Plant Nutrition and Soil Science, 181 (5), 795-801

doi:10.1002/jpln.201700366