Abstract
Abstract Sugarbeet ( Beta vulgaris L.) responses to irrigation (I) and N have been documented but I by N interactions are less well understood. The objective was to determine if N response is dependent on the amount of seasonal irrigation. Sugarbeet root yield, fresh weight sucrose concentration, and impurities were measured in experiments involving four N rates within three irrigation levels during 1982, 1984, 1986, and 1987 on a slowly permeable Pullman clay loam (fine, mixed, thermic Torrertic Paleustoll). Irrigation by N interactions were not significant in 1982 and 1984 when residual NO 3 –N was an important N source. Significant I by N interactions for all yield and quality factors were measured in 1986 and 1987, when residual NO 3 –N was low (87 and 99 kg ha −1 , 0‐ to 2.4‐m depth) and NO 3 –N concentration was greater above than below 0.6 m. Sucrose yield increased an average of 0.54, 1.76, and 2.65 Mg ha −1 in 1986 and 1987 in response to N for irrigation levels averaging 0, 234, and 435 mm, respectively. Sucrose loss to molasses at the N rate needed for maximum sucrose yield averaged 15.2, 14.1, and 13.3 g sucrose kg −1 roots for 0, 234, and 435 mm irrigation levels, respectively. Sucrose loss to molasses averaged 20.1, 16.0, and 14.1 g kg −1 at the highest applied N rate for 0, 234, and 435 mm irrigation levels, respectively, and indicated a potential for serious impurity problems with excess residual or applied N and reduced irrigation.
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Claims 11
Claim · model-written summary
Irrigation by N interactions were not significant for sugarbeet in 1982 and 1984.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarise0 - Outcome
- Irrigation by N interactionse1
- Setting
- 1982 and 1984e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Irrigation by N interactions were not significant in 1982 and 1984”
e0“Sugarbeet ( Beta vulgaris L.) responses to irrigation (I) and N have been documented”
Claim · model-written summary
Significant irrigation by N interactions were measured for all yield and quality factors of sugarbeet in 1986 and 1987.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarise0
- Outcome
- yield and quality factorse2
- Setting
- 1986 and 1987e2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Significant I by N interactions for all yield and quality factors were measured in 1986 and 1987”
e0“Sugarbeet ( Beta vulgaris L.) responses to irrigation (I) and N have been documented”
Claim · model-written summary
In 1986 and 1987, sucrose yield of sugarbeet increased by 0.54 in response to N at irrigation levels averaging 0 mm.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- Ne4
- Outcome
- Sucrose yielde3
- Direction
- increasede3
- Value
- 0.54e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Sucrose yield increased an average of 0.54, 1.76, and 2.65”
e4“in response to N for irrigation levels averaging 0, 234, and 435 mm”
e0“Sugarbeet ( Beta vulgaris L.) responses to irrigation (I) and N have been documented”
Claim · model-written summary
In 1986 and 1987, sucrose yield of sugarbeet increased by 1.76 in response to N at irrigation levels averaging 234 mm.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- Ne4
- Outcome
- Sucrose yielde3
- Direction
- increasede3
- Value
- 1.76e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Sucrose yield increased an average of 0.54, 1.76, and 2.65”
e4“in response to N for irrigation levels averaging 0, 234, and 435 mm”
e0“Sugarbeet ( Beta vulgaris L.) responses to irrigation (I) and N have been documented”
Claim · model-written summary
In 1986 and 1987, sucrose yield of sugarbeet increased by 2.65 in response to N at irrigation levels averaging 435 mm.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- Ne4
- Outcome
- Sucrose yielde3
- Direction
- increasede3
- Value
- 2.65e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Sucrose yield increased an average of 0.54, 1.76, and 2.65”
e4“in response to N for irrigation levels averaging 0, 234, and 435 mm”
e0“Sugarbeet ( Beta vulgaris L.) responses to irrigation (I) and N have been documented”
Claim · model-written summary
Sucrose loss to molasses at the N rate for maximum sucrose yield was 15.2 g/kg of sugarbeet roots at 0 mm irrigation.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarise0
- Outcome
- Sucrose loss to molasses at the N rate needed for maximum sucrose yielde5
- Value
- 15.2e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Sucrose loss to molasses at the N rate needed for maximum sucrose yield averaged 15.2, 14.1, and 13.3”
e0“Sugarbeet ( Beta vulgaris L.) responses to irrigation (I) and N have been documented”
Claim · model-written summary
Sucrose loss to molasses at the N rate for maximum sucrose yield was 14.1 g/kg of sugarbeet roots at 234 mm irrigation.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarise0
- Outcome
- Sucrose loss to molasses at the N rate needed for maximum sucrose yielde5
- Value
- 14.1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Sucrose loss to molasses at the N rate needed for maximum sucrose yield averaged 15.2, 14.1, and 13.3”
e0“Sugarbeet ( Beta vulgaris L.) responses to irrigation (I) and N have been documented”
Claim · model-written summary
Sucrose loss to molasses at the N rate for maximum sucrose yield was 13.3 g/kg of sugarbeet roots at 435 mm irrigation.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarise0
- Outcome
- Sucrose loss to molasses at the N rate needed for maximum sucrose yielde5
- Value
- 13.3e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Sucrose loss to molasses at the N rate needed for maximum sucrose yield averaged 15.2, 14.1, and 13.3”
e0“Sugarbeet ( Beta vulgaris L.) responses to irrigation (I) and N have been documented”
Claim · model-written summary
Sucrose loss to molasses at the highest applied N rate was 20.1 g/kg of sugarbeet roots at 0 mm irrigation.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- highest applied N ratee7
- Outcome
- Sucrose loss to molassese6
- Value
- 20.1e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Sucrose loss to molasses averaged 20.1, 16.0, and 14.1”
e7“at the highest applied N rate”
e0“Sugarbeet ( Beta vulgaris L.) responses to irrigation (I) and N have been documented”
Claim · model-written summary
Sucrose loss to molasses at the highest applied N rate was 16.0 g/kg of sugarbeet roots at 234 mm irrigation.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- highest applied N ratee7
- Outcome
- Sucrose loss to molassese6
- Value
- 16.0e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Sucrose loss to molasses averaged 20.1, 16.0, and 14.1”
e7“at the highest applied N rate”
e0“Sugarbeet ( Beta vulgaris L.) responses to irrigation (I) and N have been documented”
Claim · model-written summary
Sucrose loss to molasses at the highest applied N rate was 14.1 g/kg of sugarbeet roots at 435 mm irrigation.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- highest applied N ratee7
- Outcome
- Sucrose loss to molassese6
- Value
- 14.1e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Sucrose loss to molasses averaged 20.1, 16.0, and 14.1”
e7“at the highest applied N rate”
e0“Sugarbeet ( Beta vulgaris L.) responses to irrigation (I) and N have been documented”
The same questions in other papers
nitrogen · quality: sugar starch · Beta vulgaris (beet)Results differ
65 papers in the same direction as this paper · 36 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- negative
99 papers more in this group
See all 103 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.