Abstract
Few data exist relating agronomic practices to oat (Avena sativa L.) grain yield. This type of data is necessary for proper management system recommendations. The objective of the study was to determine whether two agronomic variables—seeding rate and time of N application—affected grain yield, grain N concentration, and yield components of oat. Two locations (Columbus and Springfield), which differed for soil and precipitation characteristics, were used. Soil types were Ockley silt loam (fine‐loamy, mixed, mesic Typic Hapludalf) and Kokomo silty clay loam (fine, mixed, mesic Typic Argiaquoll). For seeding rates (32, 64, 96, and 128 lb/acre) and four time of N application treatments (control, planting, 4‐leaf, and jointing) were used in a split plot design. Seeding rates of 128 and 96 lb/acre resulted in the highest grain yield at Columbus and Springfield, respectively. The number of panicles per square foot was most responsible for the yield increase due to seeding rates at both locations. The largest grain yield at Columbus was obtained when N was applied at planting and 4‐leaf stage. The yield component most responsible for the yield increase from N application was number of grains/panicle. At Springfield, N application had no significant effect on the grain yield, possibly because of inadequate precipitation at the time of grain filling. The application of N at planting resulted in the greatest plant height at both locations. The grain N concentration was affected by time of N application. Generally, as the application of nitrogen was delayed the concentration of N increased. Given these observations, a delay in nitrogen application can, under favorable circumstances, result in increased nitrogen level while high grain yield is maintained.
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Claims 10
Claim · model-written summary
The seeding rate of 128 lb/acre gave the highest oat grain yield at Columbus.
- Taxon
- Oat
Avena sativat0 - Treatment
- Seeding rates of 128 and 96 lb/acree1
- Outcome
- grain yielde1
- Direction
- higheste1
- Setting
- Columbuse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Oat Grain Yield”
e1“Seeding rates of 128 and 96 lb/acre resulted in the highest grain yield at Columbus and Springfield, respectively”
Claim · model-written summary
The seeding rate of 96 lb/acre gave the highest oat grain yield at Springfield.
- Taxon
- OatAvena sativat0
- Treatment
- Seeding rates of 128 and 96 lb/acree1
- Outcome
- grain yielde1
- Direction
- higheste1
- Setting
- Springfielde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Oat Grain Yield”
e1“Seeding rates of 128 and 96 lb/acre resulted in the highest grain yield at Columbus and Springfield, respectively”
Claim · model-written summary
Panicle number per square foot was the yield component most responsible for the yield increase due to seeding rate at both locations.
- Taxon
- OatAvena sativat0
- Treatment
- seeding ratese2
- Outcome
- yield increasee2
- Qualifier
- number of panicles per square foote2
- Setting
- both locationse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Oat Grain Yield”
e2“The number of panicles per square foot was most responsible for the yield increase due to seeding rates at both locations”
Claim · model-written summary
Applying N at planting and at the 4-leaf stage gave the largest oat grain yield at Columbus.
- Taxon
- OatAvena sativat0
- Treatment
- N was applied at planting and 4‐leaf stagee3
- Outcome
- grain yielde3
- Direction
- largeste3
- Setting
- Columbuse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Oat Grain Yield”
e3“The largest grain yield at Columbus was obtained when N was applied at planting and 4‐leaf stage”
Claim · model-written summary
Number of grains per panicle was the yield component most responsible for the yield increase from N application.
- Taxon
- OatAvena sativat0
- Treatment
- N applicatione4
- Outcome
- yield increasee4
- Qualifier
- number of grains/paniclee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Oat Grain Yield”
e4“The yield component most responsible for the yield increase from N application was number of grains/panicle”
Claim · model-written summary
N application had no significant effect on oat grain yield at Springfield, possibly because of inadequate precipitation during grain filling.
- Taxon
- OatAvena sativat0
- Treatment
- N applicatione5
- Outcome
- grain yielde5
- Direction
- no significant effecte5
- Qualifier
- possibly because of inadequate precipitation at the time of grain fillinge5
- Setting
- Springfielde5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Oat Grain Yield”
e5“At Springfield, N application had no significant effect on the grain yield, possibly because of inadequate precipitation at the time of grain filling”
Claim · model-written summary
Applying N at planting gave the greatest oat plant height at both locations.
- Taxon
- OatAvena sativat0
- Treatment
- application of N at plantinge6
- Outcome
- plant heighte6
- Direction
- greateste6
- Setting
- both locationse6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Oat Grain Yield”
e6“The application of N at planting resulted in the greatest plant height at both locations”
Claim · model-written summary
Time of N application affected grain N concentration of oat.
- Taxon
- OatAvena sativat0
- Treatment
- time of N applicatione7
- Outcome
- grain N concentratione7
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Oat Grain Yield”
e7“The grain N concentration was affected by time of N application”
Claim · model-written summary
Delaying nitrogen application increased the concentration of N in oat grain.
- Taxon
- OatAvena sativat0
- Treatment
- application of nitrogen was delayede7
- Outcome
- concentration of Ne7
- Direction
- increasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Oat Grain Yield”
e7“Generally, as the application of nitrogen was delayed the concentration of N increased”
Claim · model-written summary
A delay in nitrogen application can increase grain nitrogen while high grain yield is maintained under favourable circumstances.
- Taxon
- OatAvena sativat0
- Outcome
- a delay in nitrogen applicatione6
- Qualifier
- under favorable circumstancese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on Oat Grain Yield”
e6“a delay in nitrogen application can, under favorable circumstances, result in increased nitrogen level while high grain yield is maintained”
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See all 116 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.