Abstract
A study was conducted in southern Alberta from 1984 to 1992 to determine the feasibility of growing dryland winter wheat (Triticum aestivum L.) in various systems with different crop rotations, tillage treatments and row configurations. Winter wheat was grown continuously and in 2-yr rotations with fallow, canola (Brassica campestris L.) and lentils (Lens culinaris Medic), under conventional, minimum and zero tillage. Each phase of each rotation was grown every year. Flax (Linum usitatissimum L.) replaced lentils after 4 yr of the study. After the first year, winter wheat after fallow out-yielded that in the other three rotations in all years. Zero tillage produced significantly higher yields than either conventional or minimum tillage in 3 of 8 yr. Paired-row spacing resulted in similar winter wheat yields in 4 yr and significantly lower yields than uniform-row spacing in 3 of the 7 yr in which this was compared. Extreme drought during much of the study period, which caused some crop failures, probably provided a worst-case scenario. We suggest, however, that winter wheat production in continuously cropped management systems in rotations with canola or flax is feasible. Zero tillage enhanced production, but paired-row spacing snowed no benefits under the soil and climatic conditions of this study. Key words: Winter wheat, crop rotation, conservation tillage, row spacing, drought, soil erosion
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Claims 6
Claim · model-written summary
After the first year, winter wheat after fallow out-yielded winter wheat in the other three rotations in all years in southern Alberta.
- Taxon
- Winter wheat
Triticum aestivumt0 - Treatment
- fallowe1
- Outcome
- yielde1
- Direction
- out-yieldede1
- Qualifier
- in all yearse1
- Comparator
- the other three rotationse1
- Setting
- southern Albertat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter wheat performance in various cropping systems in southern Alberta”
e1“After the first year, winter wheat after fallow out-yielded that in the other three rotations in all years”
Claim · model-written summary
Zero tillage gave significantly higher winter wheat yields than conventional or minimum tillage in 3 of 8 years in southern Alberta.
- Taxon
- Winter wheatTriticum aestivumt0
- Treatment
- Zero tillagee1
- Outcome
- yieldse1
- Direction
- highere1
- Qualifier
- in 3 of 8 yre1
- Comparator
- either conventional or minimum tillagee1
- Setting
- southern Albertat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter wheat performance in various cropping systems in southern Alberta”
e1“Zero tillage produced significantly higher yields than either conventional or minimum tillage in 3 of 8 yr”
Claim · model-written summary
Paired-row spacing gave winter wheat yields similar to the comparison in 4 years in southern Alberta.
- Taxon
- Winter wheatTriticum aestivumt0
- Treatment
- Paired-row spacinge1
- Outcome
- yieldse1
- Direction
- no_changeinferrede1
- Qualifier
- in 4 yre1
- Setting
- southern Albertat0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter wheat performance in various cropping systems in southern Alberta”
e1“Paired-row spacing resulted in similar winter wheat yields in 4 yr”
Claim · model-written summary
Paired-row spacing gave significantly lower winter wheat yields than uniform-row spacing in 3 of 7 compared years in southern Alberta.
- Taxon
- Winter wheatTriticum aestivumt0
- Treatment
- Paired-row spacinge1
- Outcome
- yieldse1
- Direction
- lowere1
- Qualifier
- in 3 of the 7 yr in which this was comparede1
- Comparator
- uniform-row spacinge1
- Setting
- southern Albertat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter wheat performance in various cropping systems in southern Alberta”
e1“Paired-row spacing resulted in similar winter wheat yields in 4 yr and significantly lower yields than uniform-row spacing in 3 of the 7 yr in which this was compared”
Claim · model-written summary
The authors suggest that winter wheat production in continuously cropped systems in rotations with canola or flax is feasible in southern Alberta.
- Taxon
- Winter wheatTriticum aestivumt0
- Treatment
- rotations with canola or flaxe1
- Outcome
- winter wheat productione1
- Qualifier
- is feasiblee1
- Setting
- southern Albertat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter wheat performance in various cropping systems in southern Alberta”
e1“We suggest, however, that winter wheat production in continuously cropped management systems in rotations with canola or flax is feasible”
Claim · model-written summary
Paired-row spacing showed no benefit for winter wheat under the soil and climatic conditions of the study.
- Taxon
- Winter wheatTriticum aestivumt0
- Treatment
- paired-row spacinge1
- Outcome
- benefitse1
- Direction
- no_changeinferrede1
- Qualifier
- under the soil and climatic conditions of this studye1
- Setting
- southern Albertat0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter wheat performance in various cropping systems in southern Alberta”
e1“Zero tillage enhanced production, but paired-row spacing snowed no benefits under the soil and climatic conditions of this study”
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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.