Abstract
Abstract The effects of source and placement of zinc and phosphorus were studied in several greenhouse experiments. A Zn and P deficient soil was utilized and sweet corn was grown as the test plant. When Zn fertilizer materials were mixed well with the soil ZnSO 4 and organic sources such as ZnEDTA and Rayplex‐Zn were equivalent in their effectiveness for the correction of Zn deficiency. However, if the fertilizer was banded under the seed, ZnEDTA was more effective than the inorganic sources. A small amount of mixing appeared to improve the effectiveness of Zn, or P, or both fertilizers markedly. Granulation greatly reduced the effectiveness of ZnSO 4 , ZnNH 4 PO 4 , and Rayplex‐Zn.
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Claims 7
Claim · model-written summary
Well mixed ZnSO 4 and organic zinc sources were equally effective at correcting zinc deficiency.
Verbatim
e0“When Zn fertilizer materials were mixed well with the soil ZnSO 4 and organic sources such as ZnEDTA and Rayplex‐Zn were equivalent in their effectiveness for the correction of Zn deficiency.”
e1“sweet corn was grown as the test plant”
Claim · model-written summary
Banded ZnEDTA corrected zinc deficiency more effectively than inorganic zinc sources.
Verbatim
e0“if the fertilizer was banded under the seed, ZnEDTA was more effective than the inorganic sources”
e1“sweet corn was grown as the test plant”
Claim · model-written summary
A small amount of mixing markedly improved zinc fertilizer effectiveness.
Not reportedComparator
Verbatim
e0“A small amount of mixing appeared to improve the effectiveness of Zn, or P, or both fertilizers markedly.”
e1“sweet corn was grown as the test plant”
Claim · model-written summary
A small amount of mixing markedly improved phosphorus fertilizer effectiveness.
- Taxon
- sweet corne1
- Treatment
- A small amount of mixinge0
- Outcome
- effectiveness of Zn, or Pe0
- Direction
- improvee0
Not reportedComparator
Verbatim
e0“A small amount of mixing appeared to improve the effectiveness of Zn, or P, or both fertilizers markedly.”
e1“sweet corn was grown as the test plant”
Claim · model-written summary
Granulation greatly reduced ZnSO 4 effectiveness.
Not reportedComparator
Verbatim
e0“Granulation greatly reduced the effectiveness of ZnSO 4 , ZnNH 4 PO 4 , and Rayplex‐Zn.”
e1“sweet corn was grown as the test plant”
Claim · model-written summary
Granulation greatly reduced ZnNH 4 PO 4 effectiveness.
Not reportedComparator
Verbatim
e0“Granulation greatly reduced the effectiveness of ZnSO 4 , ZnNH 4 PO 4 , and Rayplex‐Zn.”
e1“sweet corn was grown as the test plant”
Claim · model-written summary
Granulation greatly reduced Rayplex‐Zn effectiveness.
Not reportedComparator
Verbatim
e0“Granulation greatly reduced the effectiveness of ZnSO 4 , ZnNH 4 PO 4 , and Rayplex‐Zn.”
e1“sweet corn was grown as the test plant”
The same questions in other papers
zinc sulfate · nutrient: content · Zea mays (maize)Positive and negative results
4 papers in the same direction as this paper · 41 in the opposite direction
- positive
- positive
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See all 46 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.