Abstract
Abstract Corn plants ( Zea mays L.) were grown in greenhouse pots on calcareous soil known to be low in available Zn. Phosphorus was applied to soil at rates of 0 to 520 ppm with concomittant addition of Zn decreasing from 40 to 0 ppm—in inverse concentration. Zinc deficiency occurred at high P and low Zn. Maximum growth occurred at 130 ppm P and 2.5 ppm Zn applied. Distribution of Zn, Fe and Mn among leaf, stem and root tissue indicated that P and Zn fertilization had altered the mobility of these micronutrients within the plant. Mobility of Fe and Mn was increased by high P and low Zn. Zinc mobility varied opposite to that of Fe and Mn. Applied P reduced Zn concentration in tissue but not uptake per plant. DTPA‐extractable Zn in soil was not decreased by P applied, but did increase with Zn applied. DTPA‐extractable Fe and Mn increased at high levels of applied P. Zinc‐deficient plants accumulated a large excess of Fe. Interference from excess Fe is suggested as contributing to physiological malfunction within Zn‐deficient corn plants.
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Claims 9
Claim · model-written summary
Corn plants developed zinc deficiency at high phosphorus and low zinc.
- Taxon
- Corn Plants
Zea mays subsp. mayse0t0 - Treatment
- high P and low Zne0
- Outcome
- Zinc deficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc deficiency occurred at high P and low Zn.”
t0“Micronutrient Uptake and Mobility Within Corn Plants (Zea mays L.) in Relation to Phosphorus‐induced Zinc Deficiency”
Claim · model-written summary
Corn growth was greatest with 130 ppm phosphorus and 2.5 ppm zinc applied.
- Taxon
- Corn PlantsZea mays subsp. mayse0t0
- Treatment
- 130 ppm P and 2.5 ppm Zn appliede0
- Outcome
- growthe0
- Direction
- Maximume0
- Value
- 130 ppm P and 2.5 ppm Zne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum growth occurred at 130 ppm P and 2.5 ppm Zn applied.”
t0“Micronutrient Uptake and Mobility Within Corn Plants (Zea mays L.) in Relation to Phosphorus‐induced Zinc Deficiency”
Claim · model-written summary
Phosphorus and zinc fertilization altered the distribution of zinc, iron and manganese across corn leaves, stems and roots.
- Taxon
- Corn PlantsZea mays subsp. mayse0t0
- Organ / stage
- leaf, stem and root tissuee0
- Treatment
- P and Zn fertilizatione0
- Outcome
- mobility of these micronutrientse0
- Direction
- alterede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Distribution of Zn, Fe and Mn among leaf, stem and root tissue indicated that P and Zn fertilization had altered the mobility of these micronutrients within the plant.”
t0“Micronutrient Uptake and Mobility Within Corn Plants (Zea mays L.) in Relation to Phosphorus‐induced Zinc Deficiency”
Claim · model-written summary
High phosphorus and low zinc increased iron and manganese mobility in corn.
- Taxon
- Corn PlantsZea mays subsp. mayse0t0
- Treatment
- high P and low Zne0
- Outcome
- Mobility of Fe and Mne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mobility of Fe and Mn was increased by high P and low Zn.”
t0“Micronutrient Uptake and Mobility Within Corn Plants (Zea mays L.) in Relation to Phosphorus‐induced Zinc Deficiency”
Claim · model-written summary
Zinc mobility varied opposite to iron and manganese mobility in corn.
- Taxon
- Corn PlantsZea mays subsp. mayse0t0
- Outcome
- Zinc mobilitye0
- Direction
- oppositee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc mobility varied opposite to that of Fe and Mn.”
t0“Micronutrient Uptake and Mobility Within Corn Plants (Zea mays L.) in Relation to Phosphorus‐induced Zinc Deficiency”
Claim · model-written summary
Applied phosphorus reduced corn tissue zinc concentration.
- Taxon
- Corn PlantsZea mays subsp. mayse0t0
- Treatment
- Applied Pe0
- Outcome
- Zn concentration in tissuee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applied P reduced Zn concentration in tissue but not uptake per plant.”
t0“Micronutrient Uptake and Mobility Within Corn Plants (Zea mays L.) in Relation to Phosphorus‐induced Zinc Deficiency”
Claim · model-written summary
Applied phosphorus did not reduce zinc uptake per corn plant.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applied P reduced Zn concentration in tissue but not uptake per plant.”
t0“Micronutrient Uptake and Mobility Within Corn Plants (Zea mays L.) in Relation to Phosphorus‐induced Zinc Deficiency”
Claim · model-written summary
Zinc-deficient corn plants accumulated excess iron.
- Taxon
- Corn PlantsZea mays subsp. mayse0t0
- Outcome
- Fee0
- Direction
- accumulatede0
- Qualifier
- Zinc‐deficient plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc‐deficient plants accumulated a large excess of Fe.”
t0“Micronutrient Uptake and Mobility Within Corn Plants (Zea mays L.) in Relation to Phosphorus‐induced Zinc Deficiency”
Claim · model-written summary
The authors suggest excess iron interferes with physiology in zinc-deficient corn.
- Taxon
- Corn PlantsZea mays subsp. mayse0t0
- Outcome
- physiological malfunctione0
- Qualifier
- excess Fee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Interference from excess Fe is suggested as contributing to physiological malfunction within Zn‐deficient corn plants.”
t0“Micronutrient Uptake and Mobility Within Corn Plants (Zea mays L.) in Relation to Phosphorus‐induced Zinc Deficiency”
The same questions in other papers
zinc atom · nutrient: content · Zea mays (maize)Results differ
198 papers in the same direction as this paper · 33 in the opposite direction · 3 reporting no difference from an alternative
- positive
- positive
- positive
231 papers more in this group
See all 235 papers →phosphorus · nutrient: content · Zea mays (maize)Positive and negative results
189 papers in the same direction as this paper · 50 in the opposite direction · 4 reporting no difference from an alternative
- no effect
- no effect
- no effect
240 papers more in this group
See all 244 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.