Decomposition of Rock Phosphate by Sodium Chloride and Water Vapor (Part 4) : Manurial Experiment of Rice Plant

Abstract

The manurial effects of two kinds of citrate soluble phosphatic fertilizers, prepared by the method reported on previous paper, were tested by rice plant. Pot experiments were made with four kinds of soils, having four classes of soil acidity; and the manurial effects of two samples were considered as equal to those of superphosphate and phosphatic fertilizer fused with serpentine.