Abstract
Nitrogen (N) is the most limiting nutrient for forage production. This study determined seeding rate effects and optimum N rate for spring oat (Avena sativa L.) forage production in the central Great Plains. Treatments consisted of a split-plot arrangement of three seeding rates (54, 72, and 90 kg ha−1) as main plots and five N rates (0, 11, 34, 56, and 78 kg N ha−1) as subplots. Results showed seeding rate had no effect on forage yield or nutritive value. Depending on N fertilizer cost and oat forage price, the economic optimum N amount ranged from 30 to 76 kg N ha−1. Nitrogen application increased crude protein (CP) and in-vitro dry matter digestibility (IVDMD), while decreasing acid and neutral detergent fiber (NDF) concentration. Our findings showed growers can plant oat forage at 25% less the recommended seeding rate of 72 kg ha−1 with no decrease in forage yield.
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Claims 8
Claim · model-written summary
Seeding rate did not affect oat forage yield.
- Taxon
- spring oat (Avena sativa L.)
Avena sativae0 - Treatment
- seeding ratee1
- Outcome
- forage yielde1
- Direction
- no effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring oat (Avena sativa L.) forage production”
e1“seeding rate had no effect on forage yield or nutritive value”
Claim · model-written summary
Seeding rate did not affect oat forage nutritive value.
- Taxon
- spring oat (Avena sativa L.)Avena sativae0
- Treatment
- seeding ratee1
- Outcome
- nutritive valuee1
- Direction
- no effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring oat (Avena sativa L.) forage production”
e1“seeding rate had no effect on forage yield or nutritive value”
Claim · model-written summary
The economic optimum nitrogen amount ranged from 30 to 76 kg N ha−1 depending on fertilizer cost and forage price.
- Taxon
- spring oat (Avena sativa L.)Avena sativae0
- Outcome
- economic optimum N amounte1
- Value
- 30 to 76 kg N ha−1e1
- Qualifier
- Depending on N fertilizer cost and oat forage pricee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring oat (Avena sativa L.) forage production”
e1“Depending on N fertilizer cost and oat forage price, the economic optimum N amount ranged from 30 to 76 kg N ha−1”
Claim · model-written summary
Nitrogen application increased crude protein.
- Taxon
- spring oat (Avena sativa L.)Avena sativae0
- Treatment
- Nitrogen applicatione1
- Outcome
- crude protein (CP)e1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring oat (Avena sativa L.) forage production”
e1“Nitrogen application increased crude protein (CP) and in-vitro dry matter digestibility (IVDMD)”
Claim · model-written summary
Nitrogen application increased in-vitro dry matter digestibility.
- Taxon
- spring oat (Avena sativa L.)Avena sativae0
- Treatment
- Nitrogen applicatione1
- Outcome
- in-vitro dry matter digestibility (IVDMD)e1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring oat (Avena sativa L.) forage production”
e1“Nitrogen application increased crude protein (CP) and in-vitro dry matter digestibility (IVDMD)”
Claim · model-written summary
Nitrogen application decreased acid detergent fiber concentration.
- Taxon
- spring oat (Avena sativa L.)Avena sativae0
- Treatment
- Nitrogen applicatione1
- Outcome
- acide1
- Direction
- decreasinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring oat (Avena sativa L.) forage production”
e1“Nitrogen application increased crude protein (CP) and in-vitro dry matter digestibility (IVDMD), while decreasing acid and neutral detergent fiber (NDF) concentration”
Claim · model-written summary
Nitrogen application decreased neutral detergent fiber concentration.
- Taxon
- spring oat (Avena sativa L.)Avena sativae0
- Treatment
- Nitrogen applicatione1
- Outcome
- neutral detergent fiber (NDF) concentratione1
- Direction
- decreasinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring oat (Avena sativa L.) forage production”
e1“Nitrogen application increased crude protein (CP) and in-vitro dry matter digestibility (IVDMD), while decreasing acid and neutral detergent fiber (NDF) concentration”
Claim · model-written summary
Growers can plant oat forage at 25% below the recommended seeding rate without reducing yield.
- Taxon
- oatAvena sativae0
- Outcome
- plant oat forage at 25% less the recommended seeding rate of 72 kg ha−1e0
- Value
- 25%e0
- Qualifier
- with no decrease in forage yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growers can plant oat forage at 25% less the recommended seeding rate of 72 kg ha−1 with no decrease in forage yield”
The same questions in other papers
nitrogen · quality: grain · Avena sativa (oats)Results differ
11 papers in the same direction as this paper · 9 in the opposite direction
- negative
- positive
- negative
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See all 21 papers →nitrogen · quality: protein · Avena sativa (oats)Results differ
23 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- no effect
22 papers more in this group
See all 26 papers →density · yield · Avena sativa (oats)Positive and negative results
24 papers in the same direction as this paper · 29 in the opposite direction
- positive
- positive
- positive
50 papers more in this group
See all 54 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.