HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Sweeney, D. W. Articles by Sisson, J. B. Search for Related Content PubMed Articles by Sweeney, D. W. Articles by Sisson, J. B. Agricola Articles by Sweeney, D. W. Articles by Sisson, J. B. Related Collections Tillage Sorghum Soybean Soil Compaction Mechanical Impediance

Production Papers

Crop and Soil Response to Wheel-Track Compaction of a Claypan Soil

^a Kansas State Univ., Southeast Agric. Res. Center, P.O. Box 316, Parsons, KS 67357
^b Dep. of Agronomy, Kansas State Univ., Manhattan, KS 66506
^c Real Life Enterprises, 9643 W. Compton Ct., Star, ID 83669

^* Corresponding author (dsweeney{at}oznet.ksu.edu)

Received for publication September 2, 2005. Annual row crop production on the naturally occurring claypan soils of the eastern Great Plains may require field operations during somewhat wet conditions and this potentially results in soil compaction by the commonly-used, heavy-weight tractors and equipment. The objectives of this experiment were (i) to determine if compaction reduced yield and growth of soybean [Glycine max (L.) Merr.] and grain sorghum [Sorghum bicolor (L.) Moench] grown on a claypan soil (fine, mixed, thermic Mollic Albaqualf) and (ii) to determine the effect of wheel tracks on selected soil properties and whether chisel plow tillage could reduce wheel-track compaction. Compaction treatments were (i) ALL—all of the plot compacted, (ii) WT—wheel-track compaction, (iii) WTC—wheel-track compaction followed by a chisel tillage operation, and (iv) NO—no intentional compaction. In general, it took until the third year of annually repeated compaction in the ALL treatment to reduce crop growth and yields compared with the NO compaction treatment. Even though nearly half of the area was compacted each year in the WT treatment, few measured crop parameters decreased. In wheel tracks, soil penetrometer resistance and bulk density increased and air permeability decreased compared with out of tracks. However, chisel tillage appeared to eliminate the compaction by reducing penetration resistance and bulk density and increasing air permeability to values similar to out of tracks. Thus, compaction of claypan soils may not often be a problem for producers in this area, especially if occasional chisel tillage is included to remove possible compacted zones.

Abbreviations: ALL, all of plot compacted • LAI, leaf area index • NO, no intentional compaction • WT, wheel-track compaction • WTC, wheel-track compaction followed by chisel plowing