Abstract
Despite extensive research, reduced corn (Zea mays L.) performance is still encountered using conservation tillage on fine-textured soils in cool humid temperate climates. These problems are intensified when corn is planted into residue from a previous crop such as winter wheat (Triticum aestivum L.). The objective of this 4-yr study was to determine the influence of fall zone tillage (ZT), no tillage (NT), and conventional moldboard plow tillage (CT) (fall plowing) on corn performance and soil physical quality under a winter wheat–corn–soybean (Glycine max L. Merr.) rotation with and without red clover (Trifolium pratense L.) (RC) underseeded in the wheat phase of the rotation. A randomized complete block design (3 × 2 factorial, 4 replicates) was established on three adjacent fields in the fall of 1996 on a Brookston clay loam soil (fine loamy, mixed, mesic, Typic Argiaquoll) at Woodslee, ON Canada, and measurements were collected during 1997 to 2000. Over both wet and dry growing seasons from 1998-2000, zone tillage following underseeded RC produced average corn grain yields (7.23 Mg ha−1) that were within 1% of those obtained using conventional tillage (7.33 Mg ha−1), and 36% higher than those obtained using no tillage and RC (5.33 Mg ha−1). Zone tillage also improved soil quality as evidenced by generally lower soil strength than no tillage, and near-surface soil physical quality parameters that were equivalent to, or more favorable than, those of the other treatments. It was concluded that corn production using zone tillage and RC underseeding is a viable option in Brookston clay loam soil, as it retains much of the soil quality benefit of conventional tillage but still achieves most of the yield benefit of conventional moldboard plow tillage.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Corn grain yield after zone tillage with red clover underseeding was within 1% of conventional tillage (7.23 vs 7.33 Mg/ha).
- Treatment
- zone tillage following underseeded RCe1
- Outcome
- corn grain yieldse1
- Direction
- no_changeinferrede1
- Value
- 7.23 Mg ha−1e1
- Comparator
- conventional tillagee1
- Setting
- Woodslee, ON Canadae6
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“zone tillage following underseeded RC produced average corn grain yields (7.23 Mg ha−1) that were within 1% of those obtained using conventional tillage (7.33 Mg ha−1)”
e6“at Woodslee, ON Canada”
e7“reduced corn (Zea mays L.) performance”
Claim · model-written summary
Corn grain yield after zone tillage with red clover underseeding was 36% higher than after no tillage with red clover.
- Treatment
- zone tillage following underseeded RCe1
- Outcome
- corn grain yieldse1
- Direction
- highere2
- Value
- 36%e2
- Comparator
- no tillage and RCe2
- Setting
- Woodslee, ON Canadae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“zone tillage following underseeded RC produced average corn grain yields (7.23 Mg ha−1) that were within 1% of those obtained using conventional tillage (7.33 Mg ha−1)”
e2“and 36% higher than those obtained using no tillage and RC (5.33 Mg ha−1)”
e6“at Woodslee, ON Canada”
e7“reduced corn (Zea mays L.) performance”
Claim · model-written summary
Zone tillage generally lowered soil strength compared with no tillage, indicating improved soil quality.
- Treatment
- Zone tillagee3
- Outcome
- soil strengthe3
- Direction
- lowere3
- Qualifier
- generallye3
- Comparator
- no tillagee3
- Setting
- Woodslee, ON Canadae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Zone tillage also improved soil quality as evidenced by generally lower soil strength than no tillage”
e6“at Woodslee, ON Canada”
e7“reduced corn (Zea mays L.) performance”
Claim · model-written summary
Near-surface soil physical quality parameters under zone tillage were equivalent to or more favorable than under the other treatments.
- Treatment
- Zone tillagee3
- Outcome
- near-surface soil physical quality parameterse4
- Direction
- equivalent to, or more favorable thane4
- Comparator
- other treatmentse4
- Setting
- Woodslee, ON Canadae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Zone tillage also improved soil quality as evidenced by generally lower soil strength than no tillage”
e4“near-surface soil physical quality parameters that were equivalent to, or more favorable than, those of the other treatments”
e6“at Woodslee, ON Canada”
e7“reduced corn (Zea mays L.) performance”
Claim · model-written summary
Zone tillage with red clover underseeding is a viable option for corn production on Brookston clay loam soil.
- Taxon
- corn
Zea mays subsp. mayse5 - Treatment
- zone tillage and RC underseedinge5
- Outcome
- viable optione5
- Setting
- Brookston clay loam soile5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“corn production using zone tillage and RC underseeding is a viable option in Brookston clay loam soil”
The same questions in other papers
tillage · quality: general · Zea mays (maize)Positive and negative results
12 papers in the same direction as this paper · 5 in the opposite direction
- no effect
- no effect
- no effect
14 papers more in this group
See all 18 papers →tillage · yield · Zea mays (maize)Positive and negative results
811 papers in the same direction as this paper · 230 in the opposite direction · 57 reporting no difference from an alternative
- positive
- no effect
- negative
1,095 papers more in this group
See all 1,099 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.