Abstract
Although zone tillage can result in favorable in‐row seedbed environments for high crop yield while providing soil conservation characteristics similar to no‐till, it necessitates a wide row width planting system. The objective of this study was to evaluate various zone‐till systems for soybean [ Glycine max (L.) Merr.] production. This study was conducted in southwestern Ontario from 1998 to 2000 on nine fields with clay contents between 133 and 354 g kg −1 and a minimum 5‐yr continuous no‐till history. Tillage systems evaluated were fall moldboard, fall zone‐till 15‐ and 30‐cm deep, spring coulter tillage, and no‐till. The no‐till and moldboard systems were planted in equally spaced 19‐, 38‐, 57‐, and 76‐cm rows plus a twin‐row configuration consisting of two 19‐cm rows centered 76 cm apart. Only single 76‐cm and twin‐row configurations were planted in the zone‐till and coulter‐till systems, where tillage was conducted in strips centered 76 cm apart. Twin‐row configurations in no‐till, spring coulter‐till, and fall zone‐till systems often increased yields over those obtained with single 76‐cm rows, with yields that were always similar to those obtained with no‐till planted in 38‐ or 19‐cm rows. Depth of fall zone tillage did not affect soybean yield. Fall zone‐till yields never exceeded those obtained with no‐till, even in environments where no‐till yields were less than those obtained with fall moldboard systems. Spring coulter tillage did not increase yields over those obtained with no‐till. Future research evaluating zone‐till systems for soybean should consider using twin‐row planting configurations.
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Claims 8
Claim · model-written summary
Twin-row planting under no-till often increased soybean yield over single 76-cm rows.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Twin‐row configurations in no‐tille0
- Outcome
- yieldse0
- Direction
- increasede0
- Comparator
- single 76‐cm rowse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“Twin‐row configurations in no‐till, spring coulter‐till, and fall zone‐till systems often increased yields over those obtained with single 76‐cm rows”
Claim · model-written summary
Twin-row planting under spring coulter tillage often increased soybean yield over single 76-cm rows.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- spring coulter‐tille0
- Outcome
- yieldse0
- Direction
- increasede0
- Comparator
- single 76‐cm rowse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“Twin‐row configurations in no‐till, spring coulter‐till, and fall zone‐till systems often increased yields over those obtained with single 76‐cm rows”
Claim · model-written summary
Twin-row planting under fall zone tillage often increased soybean yield over single 76-cm rows.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- fall zone‐tille0
- Outcome
- yieldse0
- Direction
- increasede0
- Comparator
- single 76‐cm rowse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“Twin‐row configurations in no‐till, spring coulter‐till, and fall zone‐till systems often increased yields over those obtained with single 76‐cm rows”
Claim · model-written summary
Twin-row yields were always similar to no-till yields in 38- or 19-cm rows.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Twin‐rowe1
- Outcome
- yieldse0
- Direction
- similare0
- Comparator
- no‐till planted in 38‐ or 19‐cm rowse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“with yields that were always similar to those obtained with no‐till planted in 38‐ or 19‐cm rows”
e1“Twin‐row configurations in no‐till, spring coulter‐till, and fall zone‐till systems often increased yields over those obtained with single 76‐cm rows”
Claim · model-written summary
Fall zone tillage depth did not affect soybean yield.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Depth of fall zone tillagee0
- Outcome
- soybean yielde0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“Depth of fall zone tillage did not affect soybean yield”
Claim · model-written summary
Fall zone-till yields never exceeded no-till yields.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Fall zone‐tille0
- Outcome
- yieldse0
- Direction
- never exceedede0
- Comparator
- no‐tille0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“Fall zone‐till yields never exceeded those obtained with no‐till”
Claim · model-written summary
Spring coulter tillage did not increase yield over no-till.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Spring coulter tillagee0
- Outcome
- yieldse0
- Direction
- did not increasee0
- Comparator
- no‐tille0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“Spring coulter tillage did not increase yields over those obtained with no‐till”
Claim · model-written summary
The authors recommend twin-row configurations for future soybean zone-till research.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- using twin‐row planting configurationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“Future research evaluating zone‐till systems for soybean should consider using twin‐row planting configurations”
The same questions in other papers
tillage · yield · Glycine max (soybean)Positive and negative results
263 papers in the same direction as this paper · 100 in the opposite direction · 26 reporting no difference from an alternative
- no effect
- negative
- negative
386 papers more in this group
See all 390 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.