Paper · 1962 · Agronomy Journal

Effect of pH and Nitrogen Source on the Ability of Corn and Soybean to Obtain Iron Chelated with Ethylenediamine di(o‐Hydroxyphenylacetate)1

K. C. Bhan; A. Wallace; E. J. Krohn

4
claims
5
verbatim quotes
3
citations
1
research areas
—
Not open access

Abstract

Synopsis Hawkeye and PI 54619‐5‐1 soybeans produced more dry matter in nutrient solutions at pH 7 and 8 than at pH 4. The effect was reversed with Pioneer 352 corn but this was complicated with Fe deficiency. The three plants tended to absorb less Fe as the pH was increased. The Fe was chelated with EDDHA which forms an Fe chelate extremely stable at high pH.

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Claims 4

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hawkeye soybean produced more dry matter at pH 7 and 8 than pH 4.

Taxon
soybeansGlycine maxe0
Material
Hawkeyee0
Treatment
pH 7 and 8e0
Outcome
dry mattere0
Direction
moree0
Comparator
pH 4e0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Hawkeye and PI 54619‐5‐1 soybeans produced more dry matter in nutrient solutions at pH 7 and 8 than at pH 4”

✓ located verbatim in the source · abstract, characters 9–116 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PI 54619‐5‐1 soybean produced more dry matter at pH 7 and 8 than pH 4.

Taxon
soybeansGlycine maxe0
Material
PI 54619‐5‐1e0
Treatment
pH 7 and 8e0
Outcome
dry mattere0
Direction
moree0
Comparator
pH 4e0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Hawkeye and PI 54619‐5‐1 soybeans produced more dry matter in nutrient solutions at pH 7 and 8 than at pH 4”

✓ located verbatim in the source · abstract, characters 9–116 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Pioneer 352 corn showed the reverse dry matter response, complicated by iron deficiency.

Material
Pioneer 352e0
Outcome
effecte0
Direction
reversede0
Qualifier
complicated with Fe deficiencye0

Not reportedTreatmentComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The effect was reversed with Pioneer 352 corn but this was complicated with Fe deficiency”

✓ located verbatim in the source · abstract, characters 118–207 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The three plants tended to absorb less iron as pH increased.

Treatment
pH was increasede0
Outcome
absorb less Fee0
Direction
lesse0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The three plants tended to absorb less Fe as the pH was increased”

✓ located verbatim in the source · abstract, characters 209–274 · show in text ↑
t0

“Corn and Soybean”

✓ located verbatim in the source · title, characters 51–67 · show in text ↑

ph · growth · Glycine max (soybean)Positive and negative results

34 papers: 10 positive, 24 negative or no effect

9 papers in the same direction as this paper · 24 in the opposite direction

  1. negative
  2. negative
  3. negative

30 papers more in this group

See all 34 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.