Abstract
Abstract An established stand of Ranger alfalfa was topdressed with equal rates, but different combinations, of N, P, and K. Five harvests were taken and the material analyzed for cation concentrations. Phosphorus application significantly increased P concentrations in alfalfa, but had little influence on concentration of other ions. Potassium applications showed striking effects by significantly increasing K levels of the forage while decreasing Ca, Mg, Cu, Zn, Al, and Mo levels. Significant differences occurred among harvest dates for 14 of the 16 cations analyzed. Seasonal trends were evident for SiO2, Zn, Al, Co, and Na. Applied N, P, and K and available soil P and K were associated with cation concentration of alfalfa and these interrelationships are discussed.
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Claims 9
Claim · model-written summary
Phosphorus application significantly increased alfalfa P concentration.
- Taxon
- alfalfa
Medicago sativae0 - Treatment
- Phosphorus applicatione0
- Outcome
- P concentrationse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application significantly increased P concentrations in alfalfa, but had little influence on concentration of other ions.”
Claim · model-written summary
Phosphorus application had little influence on other ion concentrations.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Phosphorus applicatione0
- Outcome
- concentration of other ionse0
- Direction
- little influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application significantly increased P concentrations in alfalfa, but had little influence on concentration of other ions.”
Claim · model-written summary
Potassium application significantly increased forage K concentration.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- Potassium applicationse0
- Outcome
- K levels of the foragee0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium applications showed striking effects by significantly increasing K levels of the forage while decreasing Ca, Mg, Cu, Zn, Al, and Mo levels.”
t0“Medicago sativa L.”
Claim · model-written summary
Potassium application decreased Ca, Mg and Cu concentrations.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- Potassium applicationse0
- Outcome
- Ca, Mg, Cue0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium applications showed striking effects by significantly increasing K levels of the forage while decreasing Ca, Mg, Cu, Zn, Al, and Mo levels.”
t0“Medicago sativa L.”
Claim · model-written summary
Potassium application decreased Zn, Al and Mo concentrations.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- Potassium applicationse0
- Outcome
- Zn, Al, and Mo levelse0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium applications showed striking effects by significantly increasing K levels of the forage while decreasing Ca, Mg, Cu, Zn, Al, and Mo levels.”
t0“Medicago sativa L.”
Claim · model-written summary
Fourteen of sixteen cations differed significantly among harvest dates.
- Taxon
- Medicago sativa L.Medicago sativat0
- Outcome
- differences occurred among harvest datese0
- Value
- 14 of the 16 cationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant differences occurred among harvest dates for 14 of the 16 cations analyzed.”
t0“Medicago sativa L.”
Claim · model-written summary
Seasonal trends appeared for SiO2, Zn and Al.
- Taxon
- Medicago sativa L.Medicago sativat0
- Outcome
- Seasonal trendse0
- Qualifier
- SiO2, Zn, Ale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seasonal trends were evident for SiO2, Zn, Al, Co, and Na.”
t0“Medicago sativa L.”
Claim · model-written summary
Seasonal trends appeared for Co and Na.
- Taxon
- Medicago sativa L.Medicago sativat0
- Outcome
- Seasonal trendse0
- Qualifier
- Co, and Nae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seasonal trends were evident for SiO2, Zn, Al, Co, and Na.”
t0“Medicago sativa L.”
Claim · model-written summary
Applied N, P and K and available soil P and K were associated with alfalfa cation concentration.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Applied N, P, and Ke0
- Outcome
- cation concentration of alfalfae0
- Qualifier
- available soil P and Ke0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applied N, P, and K and available soil P and K were associated with cation concentration of alfalfa”
The same questions in other papers
potassium · nutrient: content · Medicago sativa (alfalfa)Positive and negative results
7 papers in the same direction as this paper · 4 in the opposite direction
- negative
- no effect
- no effect
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See all 12 papers →phosphorus · molecular: metabolites · Medicago sativa (alfalfa)Positive and negative results
4 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
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See all 13 papers →phosphorus · nutrient: content · Medicago sativa (alfalfa)Positive and negative results
17 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- negative
19 papers more in this group
See all 23 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.