Abstract
Winter malting barley ( Hordeum vulgare L.) is a potential alternative crop for the dryland region of the Pacific Northwest. Nitrogen fertilization can increase grain yield but may also increase lodging and grain protein and reduce test weight. The objectives of this research were to determine the effect of N application rate and timing on grain yield and quality of winter feed and malting barley varieties. Field trials were conducted at Pendleton, OR (17 inches annual precipitation) and Moro, OR (12 inches annual precipitation). Nitrogen was applied at 0, 50, 100, or 150 lb N per acre in the fall and at 0 or 50 lb N per acre in the spring at Pendleton and at 0, 30, 60, or 90 lb N per acre in the fall and at 0 or 30 lb N per acre in the spring at Moro. Nitrogen fertilization increased grain yields at Pendleton to a maximum of 5,800 lb/acre in 2001 and 5,200 lb/acre in 2002 and at Moro to a maximum of 3,000 lb/acre. Nitrogen fertilization increased grain protein and reduced test weights. Yields of the advanced lines of malting barley were about 90% of the yields of feed type barley varieties. Spring N applications did not increase grain yield or protein more than fall N applications.
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Claims 8
Claim · model-written summary
Nitrogen fertilization increased barley grain yield at Pendleton in 2001 to a maximum of 5,800 lb/acre.
- Taxon
- Winter Barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- Nitrogen fertilizatione0
- Outcome
- grain yieldse0
- Direction
- increasede0
- Value
- 5,800 lb/acree0
- Qualifier
- in 2001e0
- Setting
- Pendletone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Winter Barley”
e0“Nitrogen fertilization increased grain yields at Pendleton to a maximum of 5,800 lb/acre in 2001”
Claim · model-written summary
Nitrogen fertilization increased barley grain yield at Pendleton in 2002 to a maximum of 5,200 lb/acre.
- Taxon
- Winter BarleyHordeum vulgaret0
- Treatment
- Nitrogen fertilizatione0
- Outcome
- grain yieldse0
- Direction
- increasede0
- Value
- 5,200 lb/acree0
- Qualifier
- in 2002e0
- Setting
- Pendletone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Barley”
e0“Nitrogen fertilization increased grain yields at Pendleton to a maximum of 5,800 lb/acre in 2001 and 5,200 lb/acre in 2002”
Claim · model-written summary
Nitrogen fertilization increased barley grain yield at Moro to a maximum of 3,000 lb/acre.
- Taxon
- Winter BarleyHordeum vulgaret0
- Treatment
- Nitrogen fertilizatione0
- Outcome
- grain yieldse0
- Direction
- increasede0
- Value
- 3,000 lb/acree0
- Setting
- Moroe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Barley”
e0“Nitrogen fertilization increased grain yields at Pendleton to a maximum of 5,800 lb/acre in 2001 and 5,200 lb/acre in 2002 and at Moro to a maximum of 3,000 lb/acre.”
Claim · model-written summary
Nitrogen fertilization increased barley grain protein.
- Taxon
- Winter BarleyHordeum vulgaret0
- Treatment
- Nitrogen fertilizatione0
- Outcome
- grain proteine0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Barley”
e0“Nitrogen fertilization increased grain protein and reduced test weights.”
Claim · model-written summary
Nitrogen fertilization reduced barley test weight.
- Taxon
- Winter BarleyHordeum vulgaret0
- Treatment
- Nitrogen fertilizatione0
- Outcome
- test weightse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Barley”
e0“Nitrogen fertilization increased grain protein and reduced test weights.”
Claim · model-written summary
Advanced malting barley lines yielded about 90% of feed type barley varieties.
- Taxon
- barleyHordeum vulgaree0
- Material
- advanced lines of malting barleye0
- Outcome
- Yieldse0
- Value
- 90%e0
- Comparator
- feed type barley varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yields of the advanced lines of malting barley were about 90% of the yields of feed type barley varieties.”
Claim · model-written summary
Spring nitrogen applications did not increase barley grain yield more than fall applications.
- Taxon
- Winter BarleyHordeum vulgaret0
- Treatment
- Spring N applicationse0
- Outcome
- grain yielde0
- Direction
- did not increasee0
- Comparator
- fall N applicationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Barley”
e0“Spring N applications did not increase grain yield or protein more than fall N applications.”
Claim · model-written summary
Spring nitrogen applications did not increase barley grain protein more than fall applications.
- Taxon
- Winter BarleyHordeum vulgaret0
- Treatment
- Spring N applicationse0
- Outcome
- proteine0
- Direction
- did not increasee0
- Comparator
- fall N applicationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Barley”
e0“Spring N applications did not increase grain yield or protein more than fall N applications.”
The same questions in other papers
fertilization · yield · Hordeum vulgare (barley)Positive and negative results
472 papers in the same direction as this paper · 66 in the opposite direction · 11 reporting no difference from an alternative
- no effect
- negative
- negative
546 papers more in this group
See all 550 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.