The condition of the phosphorus of soils : the availability and vertical distribution in the soil of phosphate phosphorus; the molecular nature of the organic forms of soil phosphorus; the phosphorus relationships of pasture plant species.

The presence of phosphorus in all soils, and the importance of this element in plant nutrition have long been recognized. Altogether, but especially since the beginning of the twentieth century, a great deal of work has been done and a multitude of papers published dealing with the many aspects and phases of soil phosphorus and the soil-plant phosphorus relationships. [...