Abstract
The effects of changes in product prices and input costs on the economic performance of 14 spring wheat (Triticum aestivum L.) rotations on a calcareous Black chernozemic heavy clay soil at Indian Head, Saskatchewan were examined over 25 yr. The rotations comprised fertilized and unfertilized treatments and several mixed cereal-oilseed and cereal-legume systems. In 1960–1977 the fertilized rotations received N and P according to the generally recommended rates for the region, but during 1978–1984 fertilizer was applied based on soil tests which resulted in substantially higher rates of N for stubble crops. Four of the rotations showed good economic performance under most reasonable economic situations. These included fertilized fallow-wheat-wheat (F-W-W), fertilized continuous wheat, unfertilized sweet clover [Melilotus officinalis (L.) Lam.] green manure-wheat-wheat (Gm-W-W), and unfertilized fallow-wheat-wheat- legume hay-hay-hay (F-W-W-H-H-H). During the first 18 yr, Gm-W-W provided the highest net income for wheat prices ranging from 73 to 221 $ t −1 ; F-W-W-H-H-H generally ranked second highest. During the last 7 yr, fertilized continuous wheat was most profitable for wheat prices greater than 180 $ t −1 . Continuous wheat, F-W-W, and F-W-W-H-H-H were about equal and provided the highest net income for wheat prices between 145 and 180 $ t −1 , while at wheat prices below 145 $ t −1 net income was highest for the legume-containing rotations. Except for the fallow-wheat rotation, higher economic benefits were obtained when fertilizer was applied based on soil tests than when based on the general recommendations for the region. Further, the application of fertilizer reduced the cash cost per unit of wheat produced for the more intensive crop rotations. Rotations containing high proportions of fallow or legume crops generally had the lowest frequency and risk of financial loss.Key words: Crop rotations, net income, input costs, income variability, riskiness
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 9
Claim · model-written summary
Four wheat rotations performed well under most economic situations.
- Taxon
- WHEAT
Triticum aestivumt0 - Outcome
- good economic performancee0
- Qualifier
- most reasonable economic situationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four of the rotations showed good economic performance under most reasonable economic situations. These included fertilized fallow-wheat-wheat (F-W-W), fertilized continuous wheat, unfertilized sweet clover [Melilotus officinalis (L.) Lam.] green manure-wheat-wheat (Gm-W-W), and unfertilized fallow-wheat-wheat- legume hay-hay-hay (F-W-W-H-H-H).”
t0“WHEAT ROTATIONS”
Claim · model-written summary
In the first 18 years, green manure-wheat-wheat gave the highest net income at wheat prices from 73 to 221 dollars per tonne.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- Gm-W-We0
- Outcome
- net incomee0
- Direction
- higheste0
- Qualifier
- wheat prices ranging from 73 to 221 $ t −1e0
Not reportedMaterial
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the first 18 yr, Gm-W-W provided the highest net income for wheat prices ranging from 73 to 221 $ t −1”
t0“WHEAT ROTATIONS”
Claim · model-written summary
Fallow-wheat-wheat-legume hay generally ranked second in net income in the first 18 years.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- F-W-W-H-H-He0
- Outcome
- ranked second higheste0
- Direction
- second higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“F-W-W-H-H-H generally ranked second highest”
t0“WHEAT ROTATIONS”
Claim · model-written summary
In the last seven years, fertilized continuous wheat was most profitable above 180 dollars per tonne.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- fertilized continuous wheate0
- Outcome
- most profitablee0
- Direction
- most profitablee0
- Qualifier
- wheat prices greater than 180 $ t −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the last 7 yr, fertilized continuous wheat was most profitable for wheat prices greater than 180 $ t −1”
t0“WHEAT ROTATIONS”
Claim · model-written summary
Between 145 and 180 dollars per tonne, continuous wheat, F-W-W, and F-W-W-H-H-H had approximately equal highest net income.
- Taxon
- WHEATTriticum aestivumt0
- Outcome
- net incomee0
- Direction
- higheste0
- Qualifier
- wheat prices between 145 and 180 $ t −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Continuous wheat, F-W-W, and F-W-W-H-H-H were about equal and provided the highest net income for wheat prices between 145 and 180 $ t −1”
t0“WHEAT ROTATIONS”
Claim · model-written summary
Below 145 dollars per tonne, legume-containing rotations yielded the highest net income.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- legume-containing rotationse0
- Outcome
- net incomee0
- Direction
- higheste0
- Qualifier
- wheat prices below 145 $ t −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at wheat prices below 145 $ t −1 net income was highest for the legume-containing rotations”
t0“WHEAT ROTATIONS”
Claim · model-written summary
Soil-test fertilizer application yielded higher economic benefits than general regional recommendations except for fallow-wheat.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- fertilizer was applied based on soil testse0
- Outcome
- economic benefitse0
- Direction
- highere0
- Qualifier
- Except for the fallow-wheat rotatione0
- Comparator
- general recommendations for the regione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Except for the fallow-wheat rotation, higher economic benefits were obtained when fertilizer was applied based on soil tests than when based on the general recommendations for the region.”
t0“WHEAT ROTATIONS”
Claim · model-written summary
Fertilizer reduced cash cost per unit of wheat in more intensive rotations.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- application of fertilizere0
- Outcome
- cash cost per unit of wheat producede0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of fertilizer reduced the cash cost per unit of wheat produced for the more intensive crop rotations.”
t0“WHEAT ROTATIONS”
Claim · model-written summary
Rotations with high proportions of fallow or legumes generally had the lowest frequency and risk of financial loss.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- Rotations containing high proportions of fallow or legume cropse0
- Outcome
- frequency and risk of financial losse0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rotations containing high proportions of fallow or legume crops generally had the lowest frequency and risk of financial loss.”
t0“WHEAT ROTATIONS”
The same questions in other papers
fertilization · yield · Triticum aestivum (wheat)Positive and negative results
3,114 papers in the same direction as this paper · 284 in the opposite direction · 39 reporting no difference from an alternative
- positive
- positive
- positive
3,434 papers more in this group
See all 3,438 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.