Abstract
Synopsis Urea and (NH 4 ) 2 SO 4 , applied in late November or mid‐December produced orchardgrass forage yields comparable to those from a March application. However, N recovery was highest from the spring application,. Nitrate from NH 4 NO 3 apparently leached over winter, making this N source inferior for late fall fertilization, Ureaformaldehyde showed promise only on a long term basis.
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Claims 5
Claim · model-written summary
Late fall urea produced orchardgrass forage yields comparable to March application.
- Taxon
- orchardgrass
Dactylis glomeratae0 - Treatment
- Ureae0
- Outcome
- orchardgrass forage yieldse0
- Direction
- comparablee0
- Qualifier
- late November or mid‐Decembere0
- Comparator
- March applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Urea and (NH 4 ) 2 SO 4 , applied in late November or mid‐December produced orchardgrass forage yields comparable to those from a March application.”
Claim · model-written summary
Late fall ammonium sulfate produced orchardgrass forage yields comparable to March application.
- Taxon
- orchardgrass
Dactylis glomeratae0 - Treatment
- (NH 4 ) 2 SO 4e0
- Outcome
- orchardgrass forage yieldse0
- Direction
- comparablee0
- Qualifier
- late November or mid‐Decembere0
- Comparator
- March applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Urea and (NH 4 ) 2 SO 4 , applied in late November or mid‐December produced orchardgrass forage yields comparable to those from a March application.”
Claim · model-written summary
Nitrogen recovery was highest after spring application.
- Taxon
- Orchardgrass
Dactylis glomeratat0 - Treatment
- spring applicatione0
- Outcome
- N recoverye0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“N recovery was highest from the spring application”
t0“Orchardgrass”
Claim · model-written summary
Ammonium nitrate was inferior for late fall fertilization, apparently because nitrate leached over winter.
- Taxon
- Orchardgrass
Dactylis glomeratat0 - Treatment
- NH 4 NO 3e0
- Outcome
- Nitrate from NH 4 NO 3 apparently leached over wintere0
- Direction
- inferiore0
- Qualifier
- late fall fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Nitrate from NH 4 NO 3 apparently leached over winter, making this N source inferior for late fall fertilization”
t0“Orchardgrass”
Claim · model-written summary
Ureaformaldehyde showed promise only for long term use.
- Taxon
- Orchardgrass
Dactylis glomeratat0 - Treatment
- Ureaformaldehydee0
- Outcome
- showed promisee0
- Qualifier
- only on a long term basise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Ureaformaldehyde showed promise only on a long term basis.”
t0“Orchardgrass”
The same questions in other papers
nitrogen · yield · Dactylis glomerata (cocksfoot)Positive and negative results
2 papers in the same direction as this paper · 15 reporting no difference from an alternative
- positive
- positive
- positive
14 papers more in this group
See all 18 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.