Intervention effectmodel-written summary

K fertilizer did not affect Na concentrations except in the last harvest.

A claim from The Effect of Formulation and Amount of Potassium Fertilizer on Macromineral Concentration and Cation-Anion Difference in Tall Fescue · 2007

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Taxon: tall fescueLolium arundinaceume0
Treatment: Application of K fertilizere1
Outcome: Na concentrationse1
Direction: did not affecte1
Qualifier: except in the last harveste1

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

*Lolium arundinaceum* · TaxonKrzysztof Ziarnek, Kenraiz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0
“tall fescue (Festuca arundinacea Schreb)”
✓ located verbatim in the source · abstract, characters 278–318

e1
“Application of K fertilizer increased the K concentration in all 5 harvests but did not affect Na concentrations except in the last harvest”
✓ located verbatim in the source · abstract, characters 1364–1503

Title

The Effect of Formulation and Amount of Potassium Fertilizer on Macromineral Concentration and Cation-Anion Difference in Tall Fescue

M.L. Swift; S. Bittman; D.E. Hunt; et al. Journal of Dairy Science 2007. doi:10.3168/jds.s0022-0302(07)71593-x

Other claims from this paper (19)

Association Barcel and HiMag tall fescue did not differ in Mg, S and Cl concentrations.
Intervention effect K fertilizer decreased Mg concentrations, with the decrease inconsistent across harvests.
Intervention effect Mg fertilizer increased Mg concentrations, with the increase inconsistent across harvests.
Association HiMag had higher Ca concentrations than Barcel, with the difference growing across harvests.
Intervention effect Potassium fertilizer decreased Ca concentrations in the first, fourth and fifth harvests only.
Intervention effect Mg fertilization decreased Ca concentrations by a greater magnitude in HiMag.
Association HiMag had lower K concentrations than Barcel in the first three harvests.
Intervention effect K fertilizer increased K concentration in all five harvests.
Association HiMag contained less Na than Barcel.
Intervention effect K fertilizer decreased S concentrations in first-harvest grass.
Intervention effect K fertilizer increased S concentrations in second- and third-harvest grass.
Intervention effect K fertilizer had no effect on S concentrations in fourth- or fifth-harvest grass.
Intervention effect Mg fertilizer decreased S concentrations of tall fescue.
Intervention effect K fertilizer increased DCAD of grass from the second to fifth harvests.
Association The DCAD increase from K fertilizer was smaller in HiMag than in Barcel.
Intervention effect K2SO4 increased dry matter yield and S concentrations of HiMag tall fescue.
Intervention effect K applied as KCl increased K and Cl concentrations.
Association HiMag fertilized with K2SO4 had lower DCAD than with KCl.
Intervention effect Fertilizer formulation had no effect on Na concentrations.

Record rev-bc1e1de3cf38d3b556ec173add6c5135d948126b415a599ac9afd484cd280c76 · schema claims-v0.9 · position 9 in the model’s answer

fertilization · nutrient: content · Lolium arundinaceum (tall fescue)Positive and negative results

27 papers: 20 positive, 7 negative or no effect

6 papers in the same direction as this claim · 20 in the opposite direction

positive
Delayed manure application increased tissue N in some summer and autumn treatments.
Surface‐Banded and Broadcast Dairy Manure Effects on Tall Fescue Yield and Nitrogen Uptake · 1999
Opposite direction
positive
P fertilization raised leaf Mg and Ca concentrations of tall fescue above thresholds considered likely to cause grass tetany where control concentrations were below them.
Phosphorus and Temperature Effects on Magnesium, Calcium, and Potassium in Wheat and Tall Fescue Leaves · 1994 · compared with control plots
Opposite direction
positive
Nitrogen fertilization increased K in late fall and winter harvested tall fescue forage.
Effects of N, P, and K Fertilization on Yield and Quality of Tall Fescue Forage in Winter¹ · 1977
Opposite direction
positive
Total nitrogen uptake was significantly greater in Evesboro than similarly treated Fauquier soil.
Nitrogen Utilization by Tall Fescue from Sewage Sludge Compost Amended Soils¹ · 1982 · compared with Fauquier soil treated similarly
Opposite direction
positive
Manure increased grass potassium concentration and uptake after two years compared with fertilizer.
TETANY POTENTIAL OF ORCHARDGRASS AND TALL FESCUE AS INFLUENCED BY FERTILIZATION WITH DAIRY MANURE OR COMMERCIAL FERTILIZER · 2002 · compared with commercial fertilizer treatment
Opposite direction
positive
P fertilization increased leaf Mg, Ca and P content of tall fescue at all soil P levels in late March/early April.
Phosphorus and Magnesium Fertilization Interaction with Soil Phosphorus Level: Tall Fescue Yield and Mineral Element Content · 1997
Opposite direction
positive
Synthetic fertilizer raised total nitrogen in endophyte-infected tall fescue versus unfertilized plots.
Plant Secondary Metabolites in Alfalfa, Birdsfoot Trefoil, Reed Canarygrass, and Tall Fescue Unaffected by Two Different Nitrogen Sources · 2017 · compared with unfertilized plots
Opposite direction
positive
Supplementing N with other nutrients increased their tissue concentrations.
Multinutrient Fertilization and Placement to Improve Yield and Nutrient Concentration of Tall Fescue · 1996
Opposite direction

18 papers more in this group

See all 27 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.

Other papers on the same question

fertilization · nutrient: content · Lolium arundinaceum (tall fescue)Positive and negative results