Intervention effectmodel-written summary

Neither fertilizer increased sugar yield above 25 ppm soil exchangeable magnesium.

A claim from Comparisons of kieserite and calcined magnesite for sugar beet grown on sandy soils · 1972

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Neither fertilizer increased sugar yield above 25 ppm soil exchangeable magnesium.

Treatment
either fertilizere0
Outcome
sugar yielde0
Direction
no responsee0
Qualifier
more than 25 ppm of exchangeable magnesiume0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“On average, 100 kg/ha magnesium as kieserite increased the mean sugar yield of 7·55 t/ha by 0·17 t/ha whereas 200 kg/ha magnesium as calcined magnesite increased it by only 0·08 t/ha; on fields with less than 15 ppm exchangeable magnesium the magnesium fertilizers increased sugar yield by 0·34 and 0·10 t/ha respectively and there was no response to either fertilizer when the soil contained more than 25 ppm of exchangeable magnesium.”

✓ located verbatim in the source · abstract, characters 232–668
t0

“sugar beet”

✓ located verbatim in the source · title, characters 52–62

Title

Comparisons of kieserite and calcined magnesite for sugar beet grown on sandy soils

A. P. Draycott; M. J. Durrant The Journal of Agricultural Science 1972. doi:10.1017/s0021859600025818

Other claims from this paper (15)

Record rev-c65383fa9fdfa96f8793afa5490a6ea00909b0614d3cc9cbe747f64703691721 · schema claims-v0.9 · position 5 in the model’s answer

fertilization · quality: sugar starch · Beta vulgaris (beet)Results differ

105 papers: 88 positive, 17 negative or no effect

16 papers in the same direction as this claim · 88 in the opposite direction

  1. positive
  2. positive
  3. positive
  4. positive
  5. positive
  6. positive
  7. positive
  8. positive

96 papers more in this group

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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.