PubAg

Main content area

Phosphate availability in alkaline calcareous soils

Author:
McGeorge, W.T.
Source:
Agronomy journal 1933 v.25 no.5 pp. 351-354
ISSN:
0002-1962
Subject:
calcareous soils, alkaline soils, phosphorus, phosphates, nutrient availability, soil pH, puddling, carbon dioxide, calcium carbonate, Arizona
Abstract:
Briefly summarizing, infertility of alkaline calcareous soils is in large part a nonabsorption of phosphate, and possibly other ions, and less a direct alkaline toxicity. Phosphate availability in such soil types is not a simple matter of solubility, but rather is a complex of several factors to which carbon dioxide is the key. A thorough acquaintance with these factors may be of greater assistance in estimating the phosphate requirement of a soil than a determination of phosphate solubility by means of some empirical reagent.
Agid:
1382511