Results 241 to 250 of about 1,129,410 (306)

Variability of soil water tension and soil water content

Agricultural Water Management, 1990
Abstract The objective of this study was the variability in soil water tension and in soil water content in a field soil. A transect was established with 91 positions, 1 m apart. Soil water content was measured 16 times at 0.3 m depth before and after flooding of the transect. Soil water tension was measured 13 times after flooding.
J.M.H. Hendrickx   +2 more
openaire   +1 more source

SOIL-WATER CONTENT DEPENDENCY OF WATER REPELLENCY IN SOILS

Soil Science, 2007
Water repellency (WR) of soils is a global phenomenon. It affects hydrological processes such as infiltration, preferential flow, and surface erosion. Although the soil WR varies nonlinearly with soil-water content (w), WR is often determined at one fixed soil-water content. For a coarse sandy soil, we provide a comparison of the whole WR-w curve under
Lis W. de Jonge   +2 more
openaire   +1 more source

Estimating soil water content from soil strength

Soil and Tillage Research, 1994
Abstract Variable rate application technology requires real time estimates of field water contents. This study was conducted to evaluate soil strength as a possible indicator of soil water content. The study involved measurement of soil strength with flat tip and cone penetrometers on laboratory packed soil cores.
L.N. Mielke   +3 more
openaire   +1 more source

Key soil water contents

2004
Publisher Summary This chapter studies critical components of a physics-based approach to define several characteristic points on the water retention curve. The idea is to find segments of the water retention curve at which the forces causing water retention have distinctly different physical natures and wet soil has distinctly different rheological ...
E. Shein, A. Guber, A. Dembovetsky
openaire   +1 more source

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