Abstract
A greenhouse study was conducted to determine the effects of placement of phosphorus and nitrogen on absorption of fertilizer phosphorus by sugar beets. Seven placements of P-32-labelled concentrated superphosphate combined with three nitrogen treatments—ON, 20 lb. N mixed with the soil, and 20 lb. N applied with the phosphorus—were used. The nitrogen source was ammonium nitrate. The phosphorus placements included three band placements, two applications mixed with 2 inches of soil at the 3–5 inch depth with and without a starter, and two applications mixed with 2 inches of soil at the 0–2 inch depth with and without a starter.The placement of nitrogen had a greater influence on the uptake of fertilizer phosphorus than did the placement of phosphorus. Nitrogen applied with the phosphorus generally resulted in greater uptake of fertilizer phosphorus than did nitrogen mixed with the soil. The nitrogen was more effective when the phosphorus was banded than when it was mixed with a volume of soil 2 inches deep. When no nitrogen was added or when nitrogen was mixed with the soil, a shallow band placement or the applications mixed with 2 inches of soil were equally effective in supplying phosphorus to the plant, and were superior to either a deep band or a mixed application with a starter. However, when nitrogen was added with the phosphorus, the shallow and deep bands were equally effective and were superior to the mixed applications with or without a starter.
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Claims 7
Claim · model-written summary
Placement of nitrogen had a greater influence on uptake of fertilizer phosphorus by sugar beets than placement of phosphorus.
- Taxon
- sugar beets
Beta vulgaris subsp. vulgarise0 - Treatment
- placement of nitrogene1
- Outcome
- uptake of fertilizer phosphoruse1
- Direction
- greatere1
- Comparator
- placement of phosphoruse1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse study was conducted to determine the effects of placement of phosphorus and nitrogen on absorption of fertilizer phosphorus by sugar beets”
e1“The placement of nitrogen had a greater influence on the uptake of fertilizer phosphorus than did the placement of phosphorus”
Claim · model-written summary
Nitrogen applied with phosphorus generally gave greater uptake of fertilizer phosphorus than nitrogen mixed with the soil.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarise0
- Treatment
- Nitrogen applied with the phosphoruse2
- Outcome
- uptake of fertilizer phosphoruse2
- Direction
- greatere2
- Qualifier
- generallye2
- Comparator
- nitrogen mixed with the soile2
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse study was conducted to determine the effects of placement of phosphorus and nitrogen on absorption of fertilizer phosphorus by sugar beets”
e2“Nitrogen applied with the phosphorus generally resulted in greater uptake of fertilizer phosphorus than did nitrogen mixed with the soil”
Claim · model-written summary
Nitrogen was more effective when phosphorus was banded than when mixed with a 2-inch soil volume.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarise0
- Treatment
- the phosphorus was bandede3
- Outcome
- effectivee3
- Direction
- more effectivee3
- Comparator
- mixed with a volume of soil 2 inches deepe3
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse study was conducted to determine the effects of placement of phosphorus and nitrogen on absorption of fertilizer phosphorus by sugar beets”
e3“The nitrogen was more effective when the phosphorus was banded than when it was mixed with a volume of soil 2 inches deep”
Claim · model-written summary
Without nitrogen, or with nitrogen mixed into the soil, a shallow band and mixed applications were equally effective in supplying phosphorus to the plant.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarise0
- Treatment
- a shallow band placemente4
- Outcome
- supplying phosphorus to the plante4
- Direction
- equally effectivee4
- Qualifier
- When no nitrogen was added or when nitrogen was mixed with the soile4
- Comparator
- the applications mixed with 2 inches of soile4
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse study was conducted to determine the effects of placement of phosphorus and nitrogen on absorption of fertilizer phosphorus by sugar beets”
e4“When no nitrogen was added or when nitrogen was mixed with the soil, a shallow band placement or the applications mixed with 2 inches of soil were equally effective in supplying phosphorus to the plant”
Claim · model-written summary
Without nitrogen, or with nitrogen mixed into the soil, a shallow band was superior to a deep band in supplying phosphorus to the plant.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarise0
- Treatment
- a shallow band placemente4
- Outcome
- supplying phosphorus to the plante4
- Direction
- superiore5
- Qualifier
- When no nitrogen was added or when nitrogen was mixed with the soile4
- Comparator
- a deep bande5
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse study was conducted to determine the effects of placement of phosphorus and nitrogen on absorption of fertilizer phosphorus by sugar beets”
e4“When no nitrogen was added or when nitrogen was mixed with the soil, a shallow band placement or the applications mixed with 2 inches of soil were equally effective in supplying phosphorus to the plant”
e5“were superior to either a deep band or a mixed application with a starter”
Claim · model-written summary
With nitrogen added with the phosphorus, shallow and deep bands were equally effective.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarise0
- Treatment
- the shallow and deep bandse6
- Outcome
- effectivee6
- Direction
- equally effectivee6
- Qualifier
- when nitrogen was added with the phosphoruse6
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse study was conducted to determine the effects of placement of phosphorus and nitrogen on absorption of fertilizer phosphorus by sugar beets”
e6“However, when nitrogen was added with the phosphorus, the shallow and deep bands were equally effective and were superior to the mixed applications with or without a starter”
Claim · model-written summary
With nitrogen added with the phosphorus, shallow and deep bands were superior to mixed applications with or without a starter.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarise0
- Treatment
- the shallow and deep bandse6
- Outcome
- effectivee6
- Direction
- superiore6
- Qualifier
- when nitrogen was added with the phosphoruse6
- Comparator
- the mixed applications with or without a startere6
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse study was conducted to determine the effects of placement of phosphorus and nitrogen on absorption of fertilizer phosphorus by sugar beets”
e6“However, when nitrogen was added with the phosphorus, the shallow and deep bands were equally effective and were superior to the mixed applications with or without a starter”
The same questions in other papers
phosphorus · nutrient: content · Beta vulgaris (beet)Positive and negative results
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- negative
- positive
- positive
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See all 10 papers →nitrogen · nutrient: content · Beta vulgaris (beet)Positive and negative results
22 papers in the same direction as this paper · 8 in the opposite direction
- no effect
- negative
- negative
27 papers more in this group
See all 31 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.