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A modified resin exchange method for measurement of available phosphate in soils derived from volcanic ash
(The Williams & Wilkins Co., 1975)
Determination of maximum complexing ability of water-soluble complexants
(The Williams & Wilkins Co., 1972)
Effect of seaweed on phosphorus available of a soil derived from volcanic ash.
(American Society of Agronomy, 1971)
Efectos de algas marinas sobre la disponibilidad de fósforo en suelos derivados de cenizas volcánicas.
(Chile, Instituto de Investigaciones Agropecuarias, 1976)
Response to a letter to the editor: Response to McCarthy's comments on the derivation of Schubert's ion-exchange equations.
(The Williams & Wilkins Co., 1978)