Abstract
Abstract Nitrogen (N) uptake by sugarbeets ( Beta vulgaris L.) from fertilizer and soil, as related to time and rate of application, was evaluated at Davis, California, in two field experiments utilizing 15 N‐deleted ammonium sulfate. There were no significant differences in root, top, or sugar yield when fertilizer N (135 kg/ha) was applied at planting, at thinning, split equally between thinning and layby, or split equally between planting, thinning, and layby. Also, there were no substantial differences in soil or fertilizer N in tops and roots in response to these dates of application. Fertilizer N recovery was 47% when 112 kg N/ha were applied to achieve maximum sugar yield. Roots removed as much N as that applied and tops contained an additional 105 kg N/ha. When applied N was 2.5 times the amount required for maximum sugar yield, tops and roots contained almost as much N as applied. The sugarbeet crop, carefully fertilized, has potential for alleviation of nitrate pollution of ground water.
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Claims 7
Claim · model-written summary
Timing of fertilizer N at 135 kg/ha did not significantly change sugarbeet root, top or sugar yield.
- Taxon
- sugarbeets
Beta vulgaris subsp. vulgarise0 - Treatment
- fertilizer N (135 kg/ha)e2
- Outcome
- root, top, or sugar yielde2
- Direction
- no_changeinferrede2
- Setting
- Davis, Californiae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen (N) uptake by sugarbeets ( Beta vulgaris L.) from fertilizer and soil”
e1“was evaluated at Davis, California, in two field experiments”
e2“There were no significant differences in root, top, or sugar yield when fertilizer N (135 kg/ha) was applied at planting, at thinning, split equally between thinning and layby, or split equally between planting, thinning, and layby”
Claim · model-written summary
Dates of fertilizer N application did not substantially change soil or fertilizer N in sugarbeet tops and roots.
- Taxon
- sugarbeetsBeta vulgaris subsp. vulgarise0
- Treatment
- dates of applicatione1
- Outcome
- soil or fertilizer N in tops and rootse1
- Direction
- no_changeinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen (N) uptake by sugarbeets ( Beta vulgaris L.) from fertilizer and soil”
e1“Also, there were no substantial differences in soil or fertilizer N in tops and roots in response to these dates of application”
Claim · model-written summary
Fertilizer N recovery in sugarbeet was 47% when 112 kg N/ha was applied for maximum sugar yield.
- Taxon
- sugarbeetsBeta vulgaris subsp. vulgarise0
- Treatment
- 112 kg N/hae1
- Outcome
- Fertilizer N recoverye1
- Value
- 47%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen (N) uptake by sugarbeets ( Beta vulgaris L.) from fertilizer and soil”
e1“Fertilizer N recovery was 47% when 112 kg N/ha were applied to achieve maximum sugar yield”
Claim · model-written summary
Sugarbeet roots removed as much N as was applied.
- Taxon
- sugarbeetsBeta vulgaris subsp. vulgarise0
- Outcome
- Roots removed as much N as that appliede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen (N) uptake by sugarbeets ( Beta vulgaris L.) from fertilizer and soil”
e1“Roots removed as much N as that applied and tops contained an additional 105 kg N/ha”
Claim · model-written summary
Sugarbeet tops contained an additional 105 kg N/ha.
- Taxon
- sugarbeetsBeta vulgaris subsp. vulgarise0
- Outcome
- topse1
- Value
- 105 kg N/hae1
- Qualifier
- an additionale1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen (N) uptake by sugarbeets ( Beta vulgaris L.) from fertilizer and soil”
e1“Roots removed as much N as that applied and tops contained an additional 105 kg N/ha”
Claim · model-written summary
When applied N was 2.5 times the amount for maximum sugar yield, sugarbeet tops and roots contained almost as much N as applied.
- Taxon
- sugarbeetsBeta vulgaris subsp. vulgarise0
- Treatment
- applied N was 2.5 times the amount required for maximum sugar yielde1
- Outcome
- tops and rootse1
- Value
- almost as much N as appliede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen (N) uptake by sugarbeets ( Beta vulgaris L.) from fertilizer and soil”
e1“When applied N was 2.5 times the amount required for maximum sugar yield, tops and roots contained almost as much N as applied”
Claim · model-written summary
Carefully fertilized sugarbeet has potential for alleviating nitrate pollution of ground water.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise1
- Outcome
- alleviation of nitrate pollution of ground watere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The sugarbeet crop, carefully fertilized, has potential for alleviation of nitrate pollution of ground water”
The same questions in other papers
fertilization · quality: sugar starch · Beta vulgaris (beet)Results differ
16 papers in the same direction as this paper · 88 in the opposite direction
- positive
- positive
- positive
101 papers more in this group
See all 105 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.