KD McLachlan

TL;DR: The phosphatase zymograms identified an isozyme which appeared when plants were deficient in phosphorus and did not appear when they were adequately supplied, and was related to grain yield at both sites, in both seasons and whether freshly applied or residual phosphorus was the source of supply.

TL;DR: Eight wheat cultivars, selected on the basis of their root phosphatase activities to provide a range of phosphorus garnering abilities, experienced difficulty in taking up phosphorus from a nutrient solution containing 1 I*.M phosphorus, a level frequently found in the soil solution.

TL;DR: In this article, continued application of fertilizer to a pasture soil over a 4-year period, increased the phosphate extractable, the bicarbonate extractable and the total sulphur contents.

TL;DR: Evidence is provided that there are empirical differences in substrate utilisation between these phosphatase isozymes associated with phosphorus deficient plants.