Abstract
Abstract The effect of phosphorus on the growth and mineral composition of four tropical pasture legumes— Centrosema pubescens, Centrosema plumeris, Puereria phaseoloides and Stylosanthes gracilis —was investigated in the greenhouse. All the species except P. phaseoloides responded to phosphorus application. C. pubescens required more phosphorus for optimum growth than C. plumeris and S. gracilis which required about the same amount. In the species, the potassium, sodium and calcium concentrations in plants given phosphorus seemed higher than that of the control except in S. gracilis where the potassium, and in C.plumeris where the calcium, concentration appeared to be lowered by phosphorus. The concentration of magnesium of C. plumeris seemed to be increased but unaffected in other species by phosphorus addition. Phosphorus tended to depress plant sulphur but it had no effect on percent nitrogen. The percentages of phosphorus, in the species for maximum growth at 65 days from sowing were: C. pubescens , 0.293; P. phaseoloides , 0.228; C. plumeris , 0.280; and S. gracilis , 0.270.
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Claims 17
Claim · model-written summary
Centrosema pubescens responded to phosphorus application.
- Taxon
- Centrosema pubescens
Centrosema pubescenst0 - Treatment
- phosphorus applicatione0
- Outcome
- respondede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the species except P. phaseoloides responded to phosphorus application.”
t0“Centrosema pubescens”
Claim · model-written summary
Centrosema plumeris responded to phosphorus application.
Not reportedComparatorDirection
Verbatim
e0“All the species except P. phaseoloides responded to phosphorus application.”
t0“Centrosema plumeris”
Claim · model-written summary
Stylosanthes gracilis responded to phosphorus application.
- Taxon
- Stylosanthes gracilis
.jpg?width=60)
Stylosanthes guianensis var. gracilist0 - Treatment
- phosphorus applicatione0
- Outcome
- respondede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“All the species except P. phaseoloides responded to phosphorus application.”
t0“Stylosanthes gracilis”
Claim · model-written summary
Puereria phaseoloides did not respond to phosphorus application.
Not reportedComparatorDirection
Verbatim
e0“All the species except P. phaseoloides responded to phosphorus application.”
t0“Puereria phaseoloides”
Claim · model-written summary
Centrosema pubescens required more phosphorus for optimum growth than the other two responding legumes.
- Taxon
- C. pubescensCentrosema pubescense0
- Outcome
- phosphorus for optimum growthe0
- Direction
- moree0
- Comparator
- C. plumeris and S. gracilise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“C. pubescens required more phosphorus for optimum growth than C. plumeris and S. gracilis which required about the same amount.”
Claim · model-written summary
Centrosema plumeris and Stylosanthes gracilis required similar phosphorus amounts for optimum growth.
Verbatim
e0“C. plumeris and S. gracilis which required about the same amount.”
Claim · model-written summary
Phosphorus appeared to raise potassium, sodium and calcium concentrations in most studied legumes.
Verbatim
e0“the potassium, sodium and calcium concentrations in plants given phosphorus seemed higher than that of the control except in S. gracilis where the potassium, and in C.plumeris where the calcium, concentration appeared to be lowered by phosphorus.”
t0“four tropical forage legumes”
Claim · model-written summary
Phosphorus appeared to lower potassium concentration in Stylosanthes gracilis.
- Taxon
- S. gracilisStylosanthes guianensis var. gracilist0
- Treatment
- phosphoruse0
- Outcome
- potassiume0
- Direction
- lowerede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except in S. gracilis where the potassium, and in C.plumeris where the calcium, concentration appeared to be lowered by phosphorus.”
t0“S. gracilis where the potassium”
Claim · model-written summary
Phosphorus appeared to lower calcium concentration in Centrosema plumeris.
Not reportedComparator
Verbatim
e0“and in C.plumeris where the calcium, concentration appeared to be lowered by phosphorus.”
t0“C.plumeris”
Claim · model-written summary
Phosphorus appeared to increase magnesium concentration in Centrosema plumeris.
- Taxon
- C. plumerist0
- Treatment
- phosphorus additione0
- Outcome
- concentration of magnesiume0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“The concentration of magnesium of C. plumeris seemed to be increased but unaffected in other species by phosphorus addition.”
t0“magnesium of C. plumeris”
Claim · model-written summary
Magnesium concentration appeared unaffected by phosphorus in the other species.
- Taxon
- four tropical forage legumest0
- Treatment
- phosphorus additione0
- Outcome
- unaffectede0
- Direction
- unaffectede0
Not reportedComparator
Verbatim
e0“unaffected in other species by phosphorus addition.”
t0“four tropical forage legumes”
Claim · model-written summary
Phosphorus tended to depress plant sulphur.
Not reportedComparator
Verbatim
e0“Phosphorus tended to depress plant sulphur”
t0“four tropical forage legumes”
Claim · model-written summary
Phosphorus had no effect on percent nitrogen.
Not reportedComparator
Verbatim
e0“but it had no effect on percent nitrogen.”
t0“four tropical forage legumes”
Claim · model-written summary
At maximum growth after 65 days, Centrosema pubescens had 0.293 percent phosphorus.
- Taxon
- C. pubescensCentrosema pubescense0
- Outcome
- percentages of phosphoruse0
- Value
- 0.293e0
- Qualifier
- maximum growth at 65 days from sowinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentages of phosphorus, in the species for maximum growth at 65 days from sowing were: C. pubescens , 0.293;”
Claim · model-written summary
At maximum growth after 65 days, Puereria phaseoloides had 0.228 percent phosphorus.
Verbatim
e0“The percentages of phosphorus, in the species for maximum growth at 65 days from sowing were: C. pubescens , 0.293; P. phaseoloides , 0.228;”
t0“P. phaseoloides , 0.228”
Claim · model-written summary
At maximum growth after 65 days, Centrosema plumeris had 0.280 percent phosphorus.
Verbatim
e0“The percentages of phosphorus, in the species for maximum growth at 65 days from sowing were: C. pubescens , 0.293; P. phaseoloides , 0.228; C. plumeris , 0.280;”
t0“C. plumeris , 0.280”
Claim · model-written summary
At maximum growth after 65 days, Stylosanthes gracilis had 0.270 percent phosphorus.
- Taxon
- S. gracilisStylosanthes guianensis var. gracilist0
- Outcome
- percentages of phosphoruse0
- Value
- 0.270e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentages of phosphorus, in the species for maximum growth at 65 days from sowing were: C. pubescens , 0.293; P. phaseoloides , 0.228; C. plumeris , 0.280; and S. gracilis , 0.270.”
t0“S. gracilis , 0.270”
The same questions in other papers
phosphorus · nutrient: content · Stylosanthes guianensis (stylo)Positive and negative results
1 in the opposite direction
- positive
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.