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The effect of soil water content and tillage implement on seedbed formation

journal contribution
posted on 2023-05-17, 06:15 authored by Braunack, MV, John McPheeJohn McPhee
This study was undertaken to determine the effect of initial soil water content and various tillage implements in producing a suitable seedbed tilth on a cracking clay soil (Entic Chromustert). The soil was tilled with one, two and three passes of a tined implement, a disc and a rotary hoe at three different initial soil water contents. Bulk density, aggregate size distribution and cone index were measured before and after tillage. Soil water content was measured before tillage only. Results tend to indicate that finer tilths were produced at drier initial soil water contents and with an increasing number of implement passes. Soil bulk density and cone index were reduced after tillage. Initial soil water content appears to be the controlling factor in producing a suitable seedbed tilth. All combinations of implement, number of passes and initial soil water contents appeared to produce reasonable seedbed tilths over the range of water contents examined. © 1991.

History

Publication title

Soil and Tillage Research

Volume

20

Pagination

5-7

ISSN

0167-1987

Department/School

Tasmanian Institute of Agriculture (TIA)

Publisher

Elsevier Science Bv

Place of publication

Po Box 211, Amsterdam, Netherlands, 1000 Ae

Rights statement

The definitive version is available at http://www.sciencedirect.com

Repository Status

  • Restricted

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