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Subsurface Tillage Effects on Soil Strength and Crop Yield
Authors: King, Tom
Identifier: CSBE17204
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Published in: CSBE-SCGAB Technical Conferences » AGM Winnipeg 2017 (with CIGR VI Technical Symposium)
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Description: Questions have arisen about the long-term effectiveness of deep tillage to address physical limitations such as dense sub-horizon Solonetzic soils and compaction occurring in wet cultivated Chernozemic soils. The objective of the study was to evaluate the effect of subsoiling on Solonetzic and Chernozemic cultivated fields in southern Saskatchewan by measuring and mapping soil strength, bulk density and crop yield. Annually cultivated Solonetzic and Chernozemic soils subjected to heavy vehicle traffic compaction were selected and a minimum-till subsoiler imposed subsoiling tillage treatments. Subsoiling was effective in significantly reducing soil strength and soil density in compacted and non-compacted areas of Solonetzic soils, and eliminating issues of elevated soil strength in wheel traffic affected areas. Subsoiling increased water infiltration and air permeability at both sites. At both the sites, plant yields were not significantly affected by compaction or subsoiling treatments, but there was a trend for subsoiling to result in increased canola yield at the Solonetzic site. Abundant rainfall was received at both sites during the 2016 growing season and this environmental factor could have limited the beneficial effects of subsoiling on soil properties to be revealed in a yield increase. Wheat yields among compacted and non-compacted subsoiled and non-subsoiled treatments were similar at the Chernozemic site. Subsoiling to improve soil properties and yield will be more economical when it is applied to just the known compacted zones in a field, where its effects on properties like soil strength, water and air permeability are manifested to the greatest extent.
Keywords: Tillage, soil strength, crop yield
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Date: 2017-08-07
Technical field:
Conference name: CSBE/SCGAB 2017 Annual Conference, Canad Inns Polo Park, Winnipeg, Manitoba, 6-10 August 2017.
Session name: Session 3B: Soil & Water: Modelling and Implications
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Type: Text.Article
Format: PDF
Publication type: Technical conference
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
DOI:
Description: Questions have arisen about the long-term effectiveness of deep tillage to address physical limitations such as dense sub-horizon Solonetzic soils and compaction occurring in wet cultivated Chernozemic soils. The objective of the study was to evaluate the effect of subsoiling on Solonetzic and Chernozemic cultivated fields in southern Saskatchewan by measuring and mapping soil strength, bulk density and crop yield. Annually cultivated Solonetzic and Chernozemic soils subjected to heavy vehicle traffic compaction were selected and a minimum-till subsoiler imposed subsoiling tillage treatments. Subsoiling was effective in significantly reducing soil strength and soil density in compacted and non-compacted areas of Solonetzic soils, and eliminating issues of elevated soil strength in wheel traffic affected areas. Subsoiling increased water infiltration and air permeability at both sites. At both the sites, plant yields were not significantly affected by compaction or subsoiling treatments, but there was a trend for subsoiling to result in increased canola yield at the Solonetzic site. Abundant rainfall was received at both sites during the 2016 growing season and this environmental factor could have limited the beneficial effects of subsoiling on soil properties to be revealed in a yield increase. Wheat yields among compacted and non-compacted subsoiled and non-subsoiled treatments were similar at the Chernozemic site. Subsoiling to improve soil properties and yield will be more economical when it is applied to just the known compacted zones in a field, where its effects on properties like soil strength, water and air permeability are manifested to the greatest extent.
Keywords: Tillage, soil strength, crop yield
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2017-08-07
Technical field:
Conference name: CSBE/SCGAB 2017 Annual Conference, Canad Inns Polo Park, Winnipeg, Manitoba, 6-10 August 2017.
Session name: Session 3B: Soil & Water: Modelling and Implications
Other information:
Type: Text.Article
Format: PDF
Publication type: Technical conference
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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