Abstract
The adoption of reduced tillage practices has increased markedly on the Canadian prairies in recent years. Producers in the semiarid Brown Chernozemic soil zone require information on how the intensity of tillage will affect moisture conservation and grain yields in the long term. A 12-yr study was conducted in the Brown soil zone of southwestern Saskatchewan on Swinton silt loam (Orthic Brown), Hatton fine sandy loam (Orthic Brown), and Sceptre heavy clay (Rego Brown) to determine the influence of tillage on the production of hard red spring wheat (Triticum aestivum L.) (on the silt loam and clay) and durum (Triticum turgidum L.) (on the sandy loam). The study was conducted with fallow-wheat (F–W) and continuous wheat (Cont W) rotations. The tillage systems were no-tillage (NT), minimum tillage (MT) and conventional tillage (CT). On the sandy soil with its low water-holding characteristics, tillage system did not affect stored spring soil moisture (SSM), nor grain yields, nor grain N. On the silt loam and clay, there were several instances when NT increased stored moisture in the soil, especially on the clay, but the extra moisture conserved was not always associated with increased grain yields. Generally, when significant increases in stored moisture for F–W were accompanied by below-average growing season precipitation (GSP), an advantage in yield accrued to NT. However, when GSP was above average, CT and MT often had greater yields than NT. We rarely observed yield advantages favouring NT on Cont W on the silt loam or on the clay. Our results suggest that wheat grown under NT on the clay has a higher lower limit of available soil moisture than under CT. Generally, grain N concentration was lower for F–W (NT) on the silt loam and clay. This study has shown that mono-culture wheat production in the Brown soil zone was influenced little by tillage system. Key words: Crop rotations, grain protein, soil water, grain production
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 11
Claim · model-written summary
Tillage system did not affect stored spring soil moisture on sandy soil.
- Taxon
- spring wheat
Triticum aestivumt0 - Treatment
- tillage systeme1
- Outcome
- stored spring soil moisture (SSM)e1
- Direction
- did not affecte1
- Setting
- sandy soile1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat production”
e1“On the sandy soil with its low water-holding characteristics, tillage system did not affect stored spring soil moisture (SSM), nor grain yields, nor grain N”
Claim · model-written summary
Tillage system did not affect grain yields on sandy soil.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- tillage systeme1
- Outcome
- grain yieldse1
- Direction
- did not affecte1
- Setting
- sandy soile1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat production”
e1“On the sandy soil with its low water-holding characteristics, tillage system did not affect stored spring soil moisture (SSM), nor grain yields, nor grain N”
Claim · model-written summary
Tillage system did not affect grain N on sandy soil.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- tillage systeme1
- Outcome
- grain Ne1
- Direction
- did not affecte1
- Setting
- sandy soile1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat production”
e1“On the sandy soil with its low water-holding characteristics, tillage system did not affect stored spring soil moisture (SSM), nor grain yields, nor grain N”
Claim · model-written summary
No-tillage increased stored soil moisture on silt loam and clay in several instances, especially on clay.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- NTe2
- Outcome
- stored moisture in the soile2
- Direction
- increasede2
- Setting
- silt loam and claye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat production”
e2“On the silt loam and clay, there were several instances when NT increased stored moisture in the soil, especially on the clay, but the extra moisture conserved was not always associated with increased grain yields”
Claim · model-written summary
Extra moisture conserved under no-tillage was not always associated with increased grain yields.
- Taxon
- spring wheatTriticum aestivumt0
- Outcome
- grain yieldse2
- Qualifier
- the extra moisture conserved was not always associated with increased grain yieldse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat production”
e2“On the silt loam and clay, there were several instances when NT increased stored moisture in the soil, especially on the clay, but the extra moisture conserved was not always associated with increased grain yields”
Claim · model-written summary
When growing season precipitation was below average, no-tillage gave a yield advantage after significant increases in stored moisture.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- NTe3
- Outcome
- yielde3
- Direction
- higherinferrede3
- Qualifier
- below-average growing season precipitation (GSP)e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat production”
e3“when significant increases in stored moisture for F–W were accompanied by below-average growing season precipitation (GSP), an advantage in yield accrued to NT”
Claim · model-written summary
When growing season precipitation was above average, conventional and minimum tillage often had greater yields than no-tillage.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- CT and MTe4
- Outcome
- yieldse4
- Direction
- greatere4
- Qualifier
- when GSP was above averagee4
- Comparator
- NTe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat production”
e4“when GSP was above average, CT and MT often had greater yields than NT”
Claim · model-written summary
Yield advantages favouring no-tillage on continuous wheat were rarely observed on silt loam or clay.
- Taxon
- spring wheatTriticum aestivumt0
- Outcome
- yield advantages favouring NT on Cont We5
- Setting
- silt loam or on the claye5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat production”
e5“We rarely observed yield advantages favouring NT on Cont W on the silt loam or on the clay”
Claim · model-written summary
Wheat under no-tillage on clay has a higher lower limit of available soil moisture than under conventional tillage.
- Taxon
- wheatTriticum aestivume6
- Treatment
- NTe6
- Outcome
- lower limit of available soil moisturee6
- Direction
- highere6
- Comparator
- CTe6
- Setting
- claye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat production”
e6“wheat grown under NT on the clay has a higher lower limit of available soil moisture than under CT”
Claim · model-written summary
Grain N concentration was lower under no-tillage on silt loam and clay.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- NTe7
- Outcome
- grain N concentratione7
- Direction
- lowere7
- Setting
- silt loam and claye7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat production”
e7“grain N concentration was lower for F–W (NT) on the silt loam and clay”
Claim · model-written summary
Mono-culture wheat production in the Brown soil zone was influenced little by tillage system.
- Taxon
- wheatTriticum aestivume1
- Outcome
- mono-culture wheat productione1
- Qualifier
- influenced little by tillage systeme1
- Setting
- Brown soil zonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“mono-culture wheat production in the Brown soil zone was influenced little by tillage system”
The same questions in other papers
tillage · soil: physics · Triticum aestivum (wheat)Positive and negative results
117 papers in the same direction as this paper · 22 in the opposite direction · 2 reporting no difference from an alternative
- positive
- positive
- positive
138 papers more in this group
See all 142 papers →tillage · nutrient: content · Triticum aestivum (wheat)Positive and negative results
25 papers in the same direction as this paper · 119 in the opposite direction
- positive
- negative
- positive
141 papers more in this group
See all 145 papers →tillage · yield · Triticum aestivum (wheat)Positive and negative results
1,115 papers in the same direction as this paper · 257 in the opposite direction · 41 reporting no difference from an alternative
- positive
- positive
- positive
1,410 papers more in this group
See all 1,414 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.