MECHANICS OF ROOT GROWTH IN GRANULAR MEDIA

被引：111

作者：

ABDALLA, AM

HETTIARATCHI, DR

REECE, AR

机构：

[1] Department of Agricultural Engíneering, The University of Newcastle upon Tyne

[2] Presently at Faculty of Agriculture, Khartoum University

来源：

JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH | 1969年 / 14卷 / 03期

关键词：

D O I：

10.1016/0021-8634(69)90126-7

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Plant roots were grown in a modified triaxial apparatus and were subjected to a range of confining hydrostatic stresses. It was found that confining pressures around 3 lbf/in2 were reasonably well tolerated by the roots, but as the pressure was increased beyond this value root elongation was rapidly attenuated until at pressures beyond 9 lbf/in2 root growth was almost completely arrested. It was observed that roots thicken under constraint and a hypothesis has been developed to account for the mechanics of root penetration in compact granular media. © 1969.

引用

页码：236 / +

页数：1