Abstract
An experiment was conducted at two locations in southern Manitoba in 2001 and 2002 to assess the effect of multiple rates of spring-applied swine slurry on seed yield, kernel quality, dry matter accumulation, protein concentration and lodging response of three adapted oat (Avena sativa L.) cultivars: AC Medallion, AC Ronald and AC Assiniboia. Treatments included three rates of swine slurry, an unfertilized check and an inorganic fertilizer treatment at the recommended N rate. In spite of the nutrient variability in swine slurry, oat grain and dry matter yield remained largely unresponsive to increases in slurry rate except when residual soil nutrients were very low. Thousand kernel weight and percentage of plump kernels appeared to be affected more by environment and cultivar than by slurry rate. High rates of swine slurry did not result in high crude protein concentrations in grain or dry matter and may, under some environmental conditions, decrease protein concentrations. The data suggest that few differences exist between oat cultivars in response to the use of swine slurry as a fertilizer. The inconsistent response to slurry application indicates that oat may not be the ideal crop to use in the year of slurry application but may respond well to residual nutrients from nutrients applied in the prior year.Key words: Oat, swine slurry, grain yield, biomass yield, crop quality
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Claims 7
Claim · model-written summary
Oat grain and dry matter yield were largely unresponsive to increasing swine slurry rates, except where residual soil nutrients were very low.
- Taxon
- oat (Avena sativa L.)
Avena sativae0 - Treatment
- increases in slurry ratee1
- Outcome
- oat grain and dry matter yielde1
- Direction
- unresponsivee1
- Qualifier
- except when residual soil nutrients were very lowe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three adapted oat (Avena sativa L.) cultivars”
e1“oat grain and dry matter yield remained largely unresponsive to increases in slurry rate except when residual soil nutrients were very low”
Claim · model-written summary
Thousand kernel weight and percentage of plump kernels were affected more by environment and cultivar than by slurry rate.
- Taxon
- oat (Avena sativa L.)Avena sativae0
- Treatment
- environment and cultivare2
- Outcome
- Thousand kernel weighte2
- Comparator
- slurry ratee2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three adapted oat (Avena sativa L.) cultivars”
e2“Thousand kernel weight and percentage of plump kernels appeared to be affected more by environment and cultivar than by slurry rate”
Claim · model-written summary
High swine slurry rates did not increase crude protein concentrations in grain or dry matter.
- Taxon
- oat (Avena sativa L.)Avena sativae0
- Treatment
- High rates of swine slurrye3
- Outcome
- crude protein concentrations in grain or dry mattere3
- Direction
- did not result in highe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three adapted oat (Avena sativa L.) cultivars”
e3“High rates of swine slurry did not result in high crude protein concentrations in grain or dry matter”
Claim · model-written summary
High swine slurry rates may decrease protein concentrations under some environmental conditions.
- Taxon
- oat (Avena sativa L.)Avena sativae0
- Treatment
- High rates of swine slurrye3
- Outcome
- protein concentrationse4
- Direction
- decreasee4
- Qualifier
- under some environmental conditionse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three adapted oat (Avena sativa L.) cultivars”
e3“High rates of swine slurry did not result in high crude protein concentrations in grain or dry matter”
e4“may, under some environmental conditions, decrease protein concentrations”
Claim · model-written summary
Few differences exist between oat cultivars in their response to swine slurry as a fertilizer.
- Taxon
- oat cultivarsAvena sativae5
- Outcome
- response to the use of swine slurrye5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“few differences exist between oat cultivars in response to the use of swine slurry as a fertilizer”
Claim · model-written summary
Oat may not be the ideal crop to use in the year of slurry application.
- Taxon
- oatAvena sativae6
- Outcome
- the ideal crop to use in the year of slurry applicatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“oat may not be the ideal crop to use in the year of slurry application”
Claim · model-written summary
Oat may respond well to residual nutrients from slurry applied in the prior year.
- Taxon
- oat (Avena sativa L.)Avena sativae0
- Treatment
- residual nutrientse7
- Outcome
- respond welle7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three adapted oat (Avena sativa L.) cultivars”
e7“may respond well to residual nutrients from nutrients applied in the prior year”
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See all 160 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.