THE INFLUENCE OF LIME AND PHOSPHATIC FERTILIZERS ON THE PHOSPHORUS CONTENT OF THE SOIL SOLUTION AND OF SOIL EXTRACTS

Publisher Website
Google Scholar
Abstract
Liming increased the P content of the soil solution and of the extracts from soils receiving acid phosphate or basic slag. The influence of lime on the solubility of rock phosphate was not great. Liming had a very decided depressing effect on the solubility of P in steamed bone meal. Soil has a remarkable capacity for maintaining a given concentration of P in the soil extract. It seems doubtful whether plants absorb all of their P from solutions of as low a concentration as the soil solution. In the soils studied, the soil solution rarely contained 1.0 part per million PO4. Concentration of P at the surface of the soil particle is possibly greater than in the soil solution obtained by displacement.
Keywords

This publication has 0 references indexed in Scilit: