Abstract
Local economic, logistic, soil, and weather conditions have made appropriate rotations vary from one area to another. Seed yield and fertilizer use in rotations were compared with continuous cropping for 6 yr in the southeast Peace region of Alberta, Canada. Canola (C) (Brassica napus L.), wheat (W) (Triticum aestivum L.), pea (P) (Pisum sativum L.), barley (B) (Hordeum vulgare L.), and flax (F) (Linum usitatissimum L.) were grown in 12 treatments [i.e., continuous canola (CC) and wheat (WW) and rotations of W–C, P–W–W, C–W–W, C–C–W, P–C–W, C–P–W, W–B–C, B–W–C, F–W–C, and F–C–W]. Canola yield increased with 1 or 2 yr breaks from canola. Within rotations, there was a trend to lower canola yield on canola stubble compared with other crop stubbles. Wheat yield was generally lower in WW than in rotations. Among rotations, wheat yield tended to be greater on pea stubble compared with canola, wheat, barley, and flax stubbles. Averaged over 2010–2015, the canola yield benefit from rotations was 0.632 Mg ha −1 (19.4%) over CC and the wheat yield benefit from rotations was 0.313 Mg ha −1 (7.2%) over WW. Nitrogen saving was observed when pea was included in rotation.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 7
Claim · model-written summary
Canola yield increased after one or two year breaks from canola.
- Taxon
- Canola
.jpg?width=60)
Brassica napus var. napuse0 - Treatment
- 1 or 2 yr breaks from canolae0
- Outcome
- Canola yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Canola yield increased with 1 or 2 yr breaks from canola”
Claim · model-written summary
Canola yield tended to be lower on canola stubble than on other crop stubbles.
- Taxon
- canolaBrassica napus var. napuse0
- Treatment
- canola stubblee0
- Outcome
- canola yielde0
- Direction
- lowere0
- Comparator
- other crop stubblese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a trend to lower canola yield on canola stubble compared with other crop stubbles”
Claim · model-written summary
Wheat yield was generally lower in continuous wheat than in rotations.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat yield was generally lower in WW than in rotations”
e1“continuous canola (CC) and wheat (WW)”
Claim · model-written summary
Wheat yield tended to be greater on pea stubble than on canola, wheat, barley, or flax stubble.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- pea stubblee0
- Outcome
- wheat yielde0
- Direction
- greatere0
- Comparator
- canola, wheat, barley, and flax stubblese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat yield tended to be greater on pea stubble compared with canola, wheat, barley, and flax stubbles”
Claim · model-written summary
Rotations raised canola yield by 0.632 Mg ha −1 over continuous canola.
- Taxon
- canolaBrassica napus var. napuse0
- Treatment
- rotationse0
- Outcome
- canola yielde0
- Direction
- benefite0
- Value
- 0.632 Mg ha −1e0
- Comparator
- CCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the canola yield benefit from rotations was 0.632 Mg ha −1 (19.4%) over CC”
e1“continuous canola (CC)”
Claim · model-written summary
Rotations raised wheat yield by 0.313 Mg ha −1 over continuous wheat.
- Taxon
- wheatTriticum aestivume0
- Treatment
- rotationse0
- Outcome
- wheat yielde0
- Direction
- benefite0
- Value
- 0.313 Mg ha −1e0
- Comparator
- WWe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the wheat yield benefit from rotations was 0.313 Mg ha −1 (7.2%) over WW”
e1“wheat (WW)”
Claim · model-written summary
Including pea in rotation saved nitrogen.
- Taxon
- canola and wheatTriticum aestivumBrassica napus var. napust0
- Treatment
- pea was included in rotatione0
- Outcome
- Nitrogen savinge0
- Direction
- savinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen saving was observed when pea was included in rotation”
t0“canola and wheat”
The same questions in other papers
Brassica napus var. napus · yield · Brassica napus (oilseed rape)Positive and negative results
11 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- positive
12 papers more in this group
See all 16 papers →rotation · yield · Brassica napus (oilseed rape)Positive and negative results
18 papers in the same direction as this paper · 8 in the opposite direction
- no effect
- positive
- negative
23 papers more in this group
See all 27 papers →rotation · yield · Triticum aestivum (wheat)Positive and negative results
252 papers in the same direction as this paper · 83 in the opposite direction · 9 reporting no difference from an alternative
- no effect
- negative
- positive
341 papers more in this group
See all 345 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.