
%0 Journal Article
%A Barley, KP 
%A Farrell, DA 
%A Greacen, EL 
%T The influence of soil strength on the penetration of a loam by plant roots
%J Soil Research
%D 1965/06/01
%V 3
%N 1
%P 69-79
%K 
%R https://doi.org/10.1071/SR9650069
%U https://www.publish.csiro.au/paper/SR9650069 
%X Wheat and pea roots were grown through soil crumbs until they encountered cores of more finely structured earth. The cores were prepared from a loam at various bulk densities and matric suctions. Over a range commonly found in the field, the penetration and growth of the roots were controlled chiefly by the strength of the soil. Soil strength should be regarded as a property that has a general influence on root elongation, rather than as a limiting condition encountered in unusual soils. 
