Abstract
Abstract A field experiment on corn with N, Zn, Mn, B and plant population as variables resulted in important positive interactions of plant population with applied Zn and with applied B indicating that limited Zn or B may be part of the reason for the severe yield decrease resulting from planting corn too thickly. High rates of applied Zn or B (90–180 kg/ha) were depressing to grain yield at low plant populations (40,000–53,333 plants/ha) but increased yields at high plant populations (80,000–93,333 plants/ha). The logarithm of the nitrate‐N concentration of the midrib of the sixth corn leaf at the silking stage was found to be closely correlated with grain yield up to about 1,000 ppm. The relationship between the total N concentration of the leaf blades and grain yield was less distinct. The phosphate‐P concentration of the midrib and the total P concentration of the leaf blades were significantly increased by increasing applications of N. The B concentration of midribs at the point of maximum yield varied from < 60 ppm at low plant population to 120 ppm at high plant population.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Plant population interacted positively with applied Zn and applied B in their effect on corn yield.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- applied Zn and with applied Be0
- Outcome
- interactions of plant populatione0
- Direction
- positivee0
- Setting
- field experimente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment on corn with N, Zn, Mn, B and plant population as variables resulted in important positive interactions of plant population with applied Zn and with applied B”
Claim · model-written summary
High rates of applied Zn or B depressed corn grain yield at low plant populations.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- High rates of applied Zn or Be1
- Outcome
- grain yielde1
- Direction
- depressinge1
- Qualifier
- at low plant populationse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment on corn”
e1“High rates of applied Zn or B (90–180 kg/ha) were depressing to grain yield at low plant populations (40,000–53,333 plants/ha) but increased yields at high plant populations (80,000–93,333 plants/ha)”
Claim · model-written summary
High rates of applied Zn or B increased corn grain yield at high plant populations.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- High rates of applied Zn or Be1
- Outcome
- grain yielde1
- Direction
- increasede1
- Qualifier
- at high plant populationse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment on corn”
e1“High rates of applied Zn or B (90–180 kg/ha) were depressing to grain yield at low plant populations (40,000–53,333 plants/ha) but increased yields at high plant populations (80,000–93,333 plants/ha)”
Claim · model-written summary
Log nitrate concentration of the corn midrib at silking was closely correlated with grain yield up to about 1,000 ppm.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- midrib of the sixth corn leaf at the silking stagee1
- Compound
- nitratee1
- Outcome
- grain yielde1
- Qualifier
- up to about 1,000 ppme1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment on corn”
e1“The logarithm of the nitrate‐N concentration of the midrib of the sixth corn leaf at the silking stage was found to be closely correlated with grain yield up to about 1,000 ppm”
Claim · model-written summary
The relation between total N in corn leaf blades and grain yield was less distinct.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- leaf bladese2
- Outcome
- grain yielde2
- Direction
- less distincte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment on corn”
e2“The relationship between the total N concentration of the leaf blades and grain yield was less distinct”
Claim · model-written summary
Increasing applications of N increased midrib phosphate-P and total P in corn leaf blades.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- increasing applications of Ne1
- Outcome
- concentration of the midrib and the total P concentration of the leaf bladese1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment on corn”
e1“The phosphate‐P concentration of the midrib and the total P concentration of the leaf blades were significantly increased by increasing applications of N”
Claim · model-written summary
B concentration of corn midribs at maximum yield was below 60 ppm at low plant population.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- midribse1
- Outcome
- B concentration of midribse1
- Value
- < 60 ppme1
- Qualifier
- at low plant populatione1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment on corn”
e1“The B concentration of midribs at the point of maximum yield varied from < 60 ppm at low plant population to 120 ppm at high plant population”
Claim · model-written summary
B concentration of corn midribs at maximum yield was 120 ppm at high plant population.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- midribse1
- Outcome
- B concentration of midribse1
- Value
- 120 ppme1
- Qualifier
- at high plant populatione1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment on corn”
e1“The B concentration of midribs at the point of maximum yield varied from < 60 ppm at low plant population to 120 ppm at high plant population”
Claim · model-written summary
Limited Zn or B may be part of the reason for the severe corn yield decrease from planting too thickly.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- severe yield decrease resulting from planting corn too thicklye1
- Qualifier
- limited Zn or B may be part of the reasone1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment on corn”
e1“indicating that limited Zn or B may be part of the reason for the severe yield decrease resulting from planting corn too thickly”
The same questions in other papers
zinc atom · yield · Zea mays (maize)Results differ
390 papers in the same direction as this paper · 47 in the opposite direction · 3 reporting no difference from an alternative
- positive
- negative
- negative
437 papers more in this group
See all 441 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.