Abstract
The water suspensibility of a number of particle/microaggregate sizes (< 60, < 20, < 6 and < 2 μm) were examined from the ploughed layer of a structurally weak soil (sieved to > 106 μm). After a period of saturation of approximately 1 min. significant amounts of water-suspensible material (WSM) < 106 μm in size were observed. After a 10-min period of saturation, the quantity of WSM < 60 μm doubled. whilst no significant change occurred in other sizes. No further WSM of < 60 μm was produced over a saturation period of 1000 min. The input of energy into the saturated soil by shaking produced significantly more WSM of all sizes. The WSM < 60 μm as a percent of the total soil in that size class was considerably greater than for other sizes. It is shown that WSM < 60 μm as opposed to WSM < 2 μm is a more important size in the stability of structure for certain soils and deserves more attention. Results are discussed in connection with furrow irrigation and soil strength. © 1991.
Original language | English (US) |
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Pages (from-to) | 89-94 |
Number of pages | 6 |
Journal | Soil and Tillage Research |
Volume | 19 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1 1991 |
Externally published | Yes |
ASJC Scopus subject areas
- Earth-Surface Processes
- Soil Science
- Agronomy and Crop Science