Abstract
Experiments were conducted from 1985 to 1989 to evaluate the response of radishes (Raphanus sativus L.) to N fertilization on Histosols. Three of these experiments used 15 N-labeled fertilizer to evaluate the recovery of N by radishes. There was no response to N fertilization in seven of the eight experiments, even though some of them were conducted under conditions of high rainfall. The one experiment in which radish yields increased with N was conducted in a poorly drained, waterlogged field that was atypical of normal radish production fields. Recoveries of fertilizer N in the marketable radish roots averaged 19%. The results of N and 15 N analysis showed that although fertilizer N was available for uptake, so was an ample amount of soil mineralized N. These results indicate that under typical growing conditions, radishes produced on Florida Histosols do not respond to N fertilization.
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Claims 5
Claim · model-written summary
Seven of eight experiments found no radish response to nitrogen fertilization.
- Taxon
- Radishes
Raphanus sativust0 - Treatment
- N fertilizatione0
- Outcome
- responsee0
- Direction
- no responsee0
- Value
- seven of the eight experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no response to N fertilization in seven of the eight experiments”
t0“Radishes”
Claim · model-written summary
Radish yields increased with nitrogen in the atypical poorly drained waterlogged field.
- Taxon
- radishRaphanus sativuse0
- Treatment
- Ne0
- Outcome
- radish yieldse0
- Direction
- increasede0
- Setting
- poorly drained, waterlogged fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“radish yields increased with N was conducted in a poorly drained, waterlogged field that was atypical of normal radish production fields”
Claim · model-written summary
Marketable radish roots recovered an average 19% of fertilizer nitrogen.
- Taxon
- radishRaphanus sativuse0
- Organ / stage
- marketable radish rootse0
- Outcome
- Recoveries of fertilizer Ne0
- Value
- 19%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recoveries of fertilizer N in the marketable radish roots averaged 19%”
Claim · model-written summary
Both fertilizer nitrogen and ample soil mineralized nitrogen were available for uptake.
- Taxon
- RadishesRaphanus sativust0
- Outcome
- fertilizer N was available for uptake, so was an ample amount of soil mineralized Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“although fertilizer N was available for uptake, so was an ample amount of soil mineralized N”
t0“Radishes”
Claim · model-written summary
Under typical conditions, the authors conclude radishes on Florida Histosols do not respond to nitrogen fertilization.
- Taxon
- radishesRaphanus sativuse0
- Outcome
- do not respond to N fertilizatione0
- Setting
- Florida Histosolse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under typical growing conditions, radishes produced on Florida Histosols do not respond to N fertilization”
The same questions in other papers
nitrogen · yield · Raphanus sativus (radish)Positive and negative results
17 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
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See all 21 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.