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Tillage effects on dryland soil physical properties in northeastern Montana

Abstract::
We evaluated the effect of no tillage (NT) and conventional tillage (CT) on soil penetration resistance (PR), bulk density (BD), gravimetric moisture content (MC), and saturated hydraulic conductivity (Ks) during the fallow phase of a spring wheat–fallow rotation. The study was conducted on two soils mapped as Williams loam at the Froid and Sidney sites. Soil measurements were made on 19 May, 23 June, and 4 August 2005 at the Froid site and on 6 June and 8 July 2005 at the Sidney site. Tillage had no effect on either soil properties except on the PR at Sidney. However, soil PR, MC, and BD varied significantly with depth regardless of tillage and location. Further, soil PR and MC varied with the date of sampling at both locations, and PR generally increased with decreased MC at all soil depths. Soil Ks was slightly influenced by tillage at both locations.
Author(s):
Jabro, J.D. , Sainju, U.M. , Lenssen, A.W. , Evans, R.G.
Subject(s):
Triticum aestivum , arid lands , bulk density , conventional tillage , fallow , no-tillage , saturated hydraulic conductivity , soil depth , soil penetration resistance , soil surveys , spring wheat , water content , Montana
Description:
Includes references
Source:
Communications in soil science and plant analysis 2011 Sept-Oct, v. 42, no. 16-19
Language:
English
Year:
2011
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
File:
Download [PDF]   
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.