Abstract
Abstract Greenhouse experiments were used to study soil compaction, moisture level, soluble P and Zn, pH, organic matter and clay contents, K saturation and titratable alkalinity as these soil factors influenced P‐Zn relationships in corn. Some of the resulting observations help to explain why starter fertilizers containing P may on occasions cause depressions in plant growth. Fertilizer P applied in the row markedly reduced Zn concentration of corn. Increasing soil compaction and soil moisture level caused further depressions of Zn concentration. The combination of irrigation practice on newly graded (and compacted) land, especially when soil P is high, would seem to portend Zn deficiency problems. Soil K saturation also appears to have a decided influence on P‐Zn relations in the plant. The higher the percent K saturation of the soil, the less did applied P reduce plant utilization of Zn in these experiments.
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Claims 4
Claim · model-written summary
Row-applied fertilizer phosphorus reduced corn zinc concentration.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- Fertilizer P applied in the rowe0
- Outcome
- Zn concentration of corne0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilizer P applied in the row markedly reduced Zn concentration of corn”
Claim · model-written summary
Increasing soil compaction further depressed corn zinc concentration.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- soil compactione0
- Outcome
- Zn concentratione0
- Direction
- depressionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing soil compaction and soil moisture level caused further depressions of Zn concentration”
t0“Corn”
Claim · model-written summary
Increasing soil moisture further depressed corn zinc concentration.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- soil moisture levele0
- Outcome
- Zn concentratione0
- Direction
- depressionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing soil compaction and soil moisture level caused further depressions of Zn concentration”
t0“Corn”
Claim · model-written summary
Higher soil potassium saturation lessened the reduction in plant zinc utilization caused by phosphorus.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- applied Pe0
- Outcome
- plant utilization of Zne0
- Direction
- lesse0
- Qualifier
- percent K saturation of the soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher the percent K saturation of the soil, the less did applied P reduce plant utilization of Zn in these experiments”
t0“Corn”
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