Authors: C. Chang and C.W. Lindwall
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Published in: CBE Journal » CBE Journal Volume 32 (1990)

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Description: The recent development of cost-effective, non-residual herbicides has resulted in considerable interest in minimum tillage systems as an alternative to the conventional tillage practice of frequent cultivation. This study was conducted to compare the longterm effects of conventional tillage and no-till on various soil-water properties within the tillage depth (0-60 mm) and below the tilled layer (90-120 mm). Parameters measured include saturated hydraulic con ductivity (HC), saturation percentage (SAT), plant-available waterholding capacity (PAWHC), large air-filled porosity (LAP), and bulk density (BD) ofthe soil. Most ofthe significantly different effects of long-term tillage or crop rotation treatments in soil properties were observed in the 30- to 60-mm depth. After 10 yr of no-till continuous cropping, there was a trend for this layer to have a lower HC and PAWHC and higher BD than soil from the conventionally tilled treat ments. None of the soil properties, however, approached values that would limit crop production. Tillage treatment effects on HC, BD, PAWHC and LAP in the surface 30-mm layer and below the tillage zone (90-120 mm) were not significantly different.

Citation: C. Chang and C.W. Lindwall 1990. COMPARISON OF THE EFFECT OF LONG-TERM TILLAGE AND CROP ROTATION ON PHYSICAL PROPERTIES OF A SOIL. Canadian Agricultural Engineering 32(1):53-55.
Volume: 32
Issue: 1
Pages -
Date: 1990
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Type: Text.Article
Format: PDF
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Coverage: Canada
Language 1: en
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Rights: Canadian Society for Bioengineering
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