Abstract
Effects of increasing doses of NPK nutrients on the technological quality and yields of roots and sugar have been monitored in an experiment which included 13 fertilization variants (50, 100 and 150 kgha-1 of NPK). The trial was carried out at the experimental field, location of R.S. with 5 varieties from 1993 to 1998 year. On average, with increases in nitrogen over 50 kgha-1, root yields were increased, the percentual sugar content dropped by 2.5 and 5.8%, the percentages of recovered sugar decreased by 5.0 and 8.1% and the yields of sugar were reduced by 3.37 and 8.04%. With the lower level of nitrogen but increased doses of phosphorus and potassium, root yield remained steady. The other parameters under study were best in the variant with 100 kgha-1 of phosphorus and 50 kgha-1 of potassium. With increased potassium (to 100 and 150 kgha-1) and phosphorus (to 150 kgha-1), the percentual sugar content dropped by 2.9 and 5.5%, the percentages of recovered sugar decreased by 4.7 and 10.3% and the yields of sugar were reduced by 5.54 and 9.98%. With increased nitrogen fertilization (100 and 150 kgha-1) combined with increased phosphorus and potassium (over 100 kgha-1 P2O5 and over 50 kgha-1 K2O), root yields were reduced by 600 and 690 kgha-1, the percentual sugar content dropped by 1.2 and 4.1 %, the percentages of recovered sugar decreased by 3.1 and 8.1 %.
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Claims 12
Claim · model-written summary
Nitrogen above 50 kgha-1 raised root yields.
- Taxon
- sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- increases in nitrogen over 50 kgha-1e0
- Outcome
- root yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with increases in nitrogen over 50 kgha-1, root yields were increased”
t0“sugarbeet”
Claim · model-written summary
Higher nitrogen lowered sugar content by 2.5 and 5.8%.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Outcome
- percentual sugar contente0
- Direction
- droppede0
- Value
- 2.5 and 5.8%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the percentual sugar content dropped by 2.5 and 5.8%”
t0“sugarbeet”
Claim · model-written summary
Higher nitrogen lowered recovered sugar percentage by 5.0 and 8.1%.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Outcome
- percentages of recovered sugare0
- Direction
- decreasede0
- Value
- 5.0 and 8.1%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the percentages of recovered sugar decreased by 5.0 and 8.1%”
t0“sugarbeet”
Claim · model-written summary
Higher nitrogen lowered sugar yield by 3.37 and 8.04%.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Outcome
- yields of sugare0
- Direction
- reducede0
- Value
- 3.37 and 8.04%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the yields of sugar were reduced by 3.37 and 8.04%”
t0“sugarbeet”
Claim · model-written summary
At low nitrogen, more phosphorus and potassium left root yield steady.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- increased doses of phosphorus and potassiume0
- Outcome
- root yielde0
- Direction
- remained steadye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the lower level of nitrogen but increased doses of phosphorus and potassium, root yield remained steady”
t0“sugarbeet”
Claim · model-written summary
Other measured parameters were best at 100 kgha-1 phosphorus and 50 kgha-1 potassium.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- 100 kgha-1 of phosphorus and 50 kgha-1 of potassiume0
- Outcome
- other parameters under studye0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The other parameters under study were best in the variant with 100 kgha-1 of phosphorus and 50 kgha-1 of potassium”
t0“sugarbeet”
Claim · model-written summary
Increased potassium and phosphorus reduced sugar content by 2.9 and 5.5%.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Outcome
- percentual sugar contente0
- Direction
- droppede0
- Value
- 2.9 and 5.5%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the percentual sugar content dropped by 2.9 and 5.5%”
t0“sugarbeet”
Claim · model-written summary
Increased potassium and phosphorus reduced recovered sugar by 4.7 and 10.3%.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Outcome
- percentages of recovered sugare0
- Direction
- decreasede0
- Value
- 4.7 and 10.3%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the percentages of recovered sugar decreased by 4.7 and 10.3%”
t0“sugarbeet”
Claim · model-written summary
Increased potassium and phosphorus reduced sugar yield by 5.54 and 9.98%.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Outcome
- yields of sugare0
- Direction
- reducede0
- Value
- 5.54 and 9.98%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the yields of sugar were reduced by 5.54 and 9.98%”
t0“sugarbeet”
Claim · model-written summary
Combined high NPK reduced root yields by 600 and 690 kgha-1.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Outcome
- root yieldse0
- Direction
- reducede0
- Value
- 600 and 690 kgha-1e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root yields were reduced by 600 and 690 kgha-1”
t0“sugarbeet”
Claim · model-written summary
Combined high NPK reduced sugar content by 1.2 and 4.1%.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Outcome
- percentual sugar contente0
- Direction
- droppede0
- Value
- 1.2 and 4.1 %e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the percentual sugar content dropped by 1.2 and 4.1 %”
t0“sugarbeet”
Claim · model-written summary
Combined high NPK reduced recovered sugar by 3.1 and 8.1%.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarist0
- Outcome
- percentages of recovered sugare0
- Direction
- decreasede0
- Value
- 3.1 and 8.1 %e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the percentages of recovered sugar decreased by 3.1 and 8.1 %”
t0“sugarbeet”
The same questions in other papers
phosphorus · yield · Beta vulgaris (beet)Results differ
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5 papers in the same direction as this paper · 52 in the opposite direction
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See all 58 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.