Abstract
Abstract Soil factors controlling Zn concentration in the corn plant are very complex, including among others a beneficial action of applied N and a detrimental action of P or lime inherently present or added to the soil. It is apparent that Zn deficiency is likely to be aggravated or created by row application at low rates or heavier mixed applications of readily available P fertilizer. The problem is greatest on soils that are calcareous and especially on those of high inherent P supply where plant Zn concentration already may be approaching a critical level. The more effectively the applied P is utilized by the crop, the more severe is the reduction in Zn utilization. Thus the calcareous soil with tendency for Zn deficiency perhaps should not be treated so as to afford maximum early uptake and utilization of applied P. It also seems evident that low P rates rather than heavy, infrequent applications are likely to give less damaging effects. Alternative to these procedures is to apply supplemental Zn whenever P is added to soil where the level of Zn availability is uncertain. The damaging effect of P on Zn utilization is considered to be largely physiological in nature, probably a plant root cell absorption phenomenon, and not an external Zn phosphate precipitation. It is recognized, however, that root proliferation in the band of row‐placed P may be a contributing factor due to inadequate exploration of a soil body where enough available Zn may exist.
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Claims 8
Claim · model-written summary
Applied nitrogen benefits corn zinc concentration.
- Taxon
- corn
Zea mays subsp. mayse1 - Treatment
- applied Ne0
- Outcome
- Zn concentratione1
- Direction
- beneficiale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a beneficial action of applied N”
e1“Zn concentration in the corn plant”
Claim · model-written summary
Soil phosphorus or lime detrimentally affects corn zinc concentration.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- P or lime inherently present or added to the soile0
- Outcome
- Zn concentratione1
- Direction
- detrimentale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a detrimental action of P or lime inherently present or added to the soil”
e1“Zn concentration in the corn plant”
Claim · model-written summary
Readily available phosphorus fertilizer can aggravate or create zinc deficiency.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- row application at low rates or heavier mixed applications of readily available P fertilizere0
- Outcome
- Zn deficiencye0
- Direction
- aggravated or createde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn”
e0“Zn deficiency is likely to be aggravated or created by row application at low rates or heavier mixed applications of readily available P fertilizer”
Claim · model-written summary
Greater utilization of applied phosphorus corresponds to a more severe reduction in zinc utilization.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- applied Pe0
- Outcome
- Zn utilizatione0
- Direction
- reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn”
e0“The more effectively the applied P is utilized by the crop, the more severe is the reduction in Zn utilization.”
Claim · model-written summary
Phosphorus damage to zinc utilization is considered primarily a root-cell absorption phenomenon.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- Pe0
- Outcome
- Zn utilizatione0
- Qualifier
- plant root cell absorption phenomenone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn”
e0“The damaging effect of P on Zn utilization is considered to be largely physiological in nature, probably a plant root cell absorption phenomenon, and not an external Zn phosphate precipitation.”
Claim · model-written summary
Root proliferation in bands of row-placed phosphorus may contribute to reduced zinc access.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- row‐placed Pe0
- Outcome
- inadequate exploration of a soil body where enough available Zn may existe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn”
e0“root proliferation in the band of row‐placed P may be a contributing factor due to inadequate exploration of a soil body where enough available Zn may exist”
Claim · model-written summary
Low phosphorus rates are recommended over heavy infrequent applications to limit zinc damage.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- low P rates rather than heavy, infrequent applicationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn”
e0“low P rates rather than heavy, infrequent applications are likely to give less damaging effects”
Claim · model-written summary
Supplemental zinc is recommended when phosphorus is added where zinc availability is uncertain.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- apply supplemental Zn whenever P is added to soil where the level of Zn availability is uncertaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn”
e0“apply supplemental Zn whenever P is added to soil where the level of Zn availability is uncertain”
The same questions in other papers
fertilization · nutrient: content · Zea mays (maize)Positive and negative results
137 papers in the same direction as this paper · 1,026 in the opposite direction
- no effect
- positive
- positive
1,160 papers more in this group
See all 1,164 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.