Abstract
In garden plots of pH6, response to added N was slight due to nodulation, N fixation and development of red clover at low N fertilizer levels. With increasing amounts of fertilizer N the production of grass increased considerably but clover production fell; clover production increased with N treatment in the absence of grass. Nodulation of clover in uninoculated plots was poor at soil pH5.8but inoculation with Rhizobium trifolii gave normal nodulation at pH 5.0. Increasing the supply of fertilizer N increasingly delayed nodulation. Stable manure promoted nodulation and N fixation in clover on uninoculated acid soil (pH 5.0); on uninoculated soil the effect was weaker. (Abstract retrieved from CAB Abstracts by CABI’s permission)
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Claims 9
Claim · model-written summary
Added nitrogen gave only a slight response at pH 6.
- Taxon
- red clover
Trifolium pratensee0 - Treatment
- added Ne0
- Outcome
- response to added Ne0
- Direction
- slighte0
- Setting
- garden plots of pH6e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In garden plots of pH6, response to added N was slight due to nodulation, N fixation and development of red clover at low N fertilizer levels.”
Claim · model-written summary
Increasing fertilizer nitrogen considerably increased grass production.
- Taxon
- perennial ryegrass
Lolium perennet0 - Treatment
- increasing amounts of fertilizer Ne0
- Outcome
- production of grasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing amounts of fertilizer N the production of grass increased considerably but clover production fell”
t0“perennial ryegrass”
Claim · model-written summary
Increasing fertilizer nitrogen reduced clover production with grass present.
- Taxon
- red cloverTrifolium pratenset0
- Treatment
- increasing amounts of fertilizer Ne0
- Outcome
- clover productione0
- Direction
- felle0
- Qualifier
- grasse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing amounts of fertilizer N the production of grass increased considerably but clover production fell”
t0“growth of red clover and of red clover associations”
Claim · model-written summary
Nitrogen increased clover production without grass.
- Taxon
- red cloverTrifolium pratenset0
- Treatment
- N treatmente0
- Outcome
- clover productione0
- Direction
- increasede0
- Qualifier
- in the absence of grasse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“clover production increased with N treatment in the absence of grass”
t0“growth of red clover and of red clover associations”
Claim · model-written summary
Uninoculated clover nodulation was poor at soil pH 5.8.
- Taxon
- red cloverTrifolium pratenset0
- Outcome
- Nodulation of clovere0
- Direction
- poore0
- Setting
- soil pH5.8e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nodulation of clover in uninoculated plots was poor at soil pH5.8”
t0“growth of red clover and of red clover associations”
Claim · model-written summary
Rhizobium trifolii inoculation yielded normal clover nodulation at pH 5.0.
- Taxon
- red cloverTrifolium pratenset0
- Treatment
- inoculation with Rhizobium trifoliie0
- Interactor
- Rhizobium trifolii
Rhizobium leguminosarume0symbiont - Outcome
- normal nodulatione0
- Setting
- pH 5.0e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation with Rhizobium trifolii gave normal nodulation at pH 5.0”
t0“growth of red clover and of red clover associations”
Claim · model-written summary
More fertilizer nitrogen increasingly delayed clover nodulation.
- Taxon
- red cloverTrifolium pratenset0
- Treatment
- Increasing the supply of fertilizer Ne0
- Outcome
- nodulatione0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the supply of fertilizer N increasingly delayed nodulation.”
t0“growth of red clover and of red clover associations”
Claim · model-written summary
Stable manure promoted nodulation on uninoculated acid soil.
- Taxon
- red cloverTrifolium pratenset0
- Treatment
- Stable manuree0
- Outcome
- nodulatione0
- Direction
- promotede0
- Setting
- uninoculated acid soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stable manure promoted nodulation and N fixation in clover on uninoculated acid soil (pH 5.0)”
t0“growth of red clover and of red clover associations”
Claim · model-written summary
Stable manure promoted nitrogen fixation on uninoculated acid soil.
- Taxon
- red cloverTrifolium pratenset0
- Treatment
- Stable manuree0
- Outcome
- N fixatione0
- Direction
- promotede0
- Setting
- uninoculated acid soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stable manure promoted nodulation and N fixation in clover on uninoculated acid soil (pH 5.0)”
t0“growth of red clover and of red clover associations”
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5 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- negative
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See all 9 papers →fertilization · yield · Lolium perenne (perennial ryegrass)Positive and negative results
25 papers in the same direction as this paper · 9 in the opposite direction · 5 reporting no difference from an alternative
- negative
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See all 40 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.