Abstract
Abstract A study was made of the uptake of zinc, copper, and iron by four successive crops of corn ( Zea mays L.) from applications of trace element‐sulfur fusions to Plainfield sand in pots. The various zinc treatments gave increased total yields, but those with copper gave somewhat reduced yields and those of iron had little or no effect. The concentrations of tissue zinc were inversely related to granule size of the ZnO‐S and ZnCO 3 ‐S fusions and were much lower for banding than mixing with the soil. Both the 20 to 40‐ and 40 to 80‐mesh sizes appeared to be quite favorable for prolonged release of zinc. Similar trends were obtained for tissue copper from the application of CuC 2 O 4 ‐S fusions. The iron released from the FeS‐S fusions appeared to be precipitated too quickly to be satisfactory in supplying the plants with iron. The inclusion of zinc, copper, or iron compounds in the fusions had little or no effect on the rate of sulfur oxidation. Total recovery of applied elemental sulfur by the crops and as soil sulfate varied inversely with granule size and ranged from 5 to 49%. The data obtained so far suggest that fusions of certain trace element compounds with sulfur hold promise as a means of providing prolonged release of Manganese, zinc and copper for plants.
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Claims 12
Claim · model-written summary
Zinc treatments increased total corn yields
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- zinc treatmentse1
- Outcome
- total yieldse1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by four successive crops of corn ( Zea mays L.)”
e1“The various zinc treatments gave increased total yields, but those with copper gave somewhat reduced yields and those of iron had little or no effect”
Claim · model-written summary
Copper treatments somewhat reduced corn yields
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- coppere1
- Outcome
- yieldse1
- Direction
- somewhat reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by four successive crops of corn ( Zea mays L.)”
e1“The various zinc treatments gave increased total yields, but those with copper gave somewhat reduced yields and those of iron had little or no effect”
Claim · model-written summary
Iron treatments had little or no effect on corn yields
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- irone1
- Outcome
- yieldse1
- Direction
- no_changeinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by four successive crops of corn ( Zea mays L.)”
e1“The various zinc treatments gave increased total yields, but those with copper gave somewhat reduced yields and those of iron had little or no effect”
Claim · model-written summary
Tissue zinc concentrations were inversely related to granule size
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- granule sizee2
- Outcome
- concentrations of tissue zince2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by four successive crops of corn ( Zea mays L.)”
e2“The concentrations of tissue zinc were inversely related to granule size”
Claim · model-written summary
Tissue zinc concentrations were much lower for banding than for mixing with the soil
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- bandinge3
- Outcome
- concentrations of tissue zince2
- Direction
- much lowere3
- Comparator
- mixing with the soile3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by four successive crops of corn ( Zea mays L.)”
e2“The concentrations of tissue zinc were inversely related to granule size”
e3“were much lower for banding than mixing with the soil”
Claim · model-written summary
Granule sizes of 20 to 40 and 40 to 80 mesh appeared favorable for prolonged zinc release
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- 20 to 40‐ and 40 to 80‐mesh sizese4
- Outcome
- prolonged release of zince4
- Qualifier
- quite favorablee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by four successive crops of corn ( Zea mays L.)”
e4“Both the 20 to 40‐ and 40 to 80‐mesh sizes appeared to be quite favorable for prolonged release of zinc”
Claim · model-written summary
Tissue copper showed similar trends to zinc with CuC2O4-S fusions
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- CuC 2 O 4 ‐S fusionse6
- Outcome
- tissue coppere6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by four successive crops of corn ( Zea mays L.)”
e6“Similar trends were obtained for tissue copper from the application of CuC 2 O 4 ‐S fusions”
Claim · model-written summary
Iron released from FeS-S fusions precipitated too quickly to supply iron satisfactorily
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- FeS‐S fusionse7
- Outcome
- iron releasede7
- Qualifier
- precipitated too quickly to be satisfactorye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by four successive crops of corn ( Zea mays L.)”
e7“The iron released from the FeS‐S fusions appeared to be precipitated too quickly to be satisfactory”
Claim · model-written summary
Including zinc, copper or iron compounds in the fusions had little or no effect on sulfur oxidation rate
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- inclusion of zinc, copper, or iron compounds in the fusionse5
- Outcome
- rate of sulfur oxidatione5
- Direction
- no_changeinferrede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by four successive crops of corn ( Zea mays L.)”
e5“The inclusion of zinc, copper, or iron compounds in the fusions had little or no effect on the rate of sulfur oxidation”
Claim · model-written summary
Total recovery of applied sulfur varied inversely with granule size
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- granule sizee6
- Outcome
- Total recovery of applied elemental sulfure6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by four successive crops of corn ( Zea mays L.)”
e6“Total recovery of applied elemental sulfur by the crops and as soil sulfate varied inversely with granule size and ranged from 5 to 49%”
Claim · model-written summary
Total recovery of applied sulfur ranged from 5 to 49%
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- Total recovery of applied elemental sulfure6
- Value
- 5 to 49%e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by four successive crops of corn ( Zea mays L.)”
e6“Total recovery of applied elemental sulfur by the crops and as soil sulfate varied inversely with granule size and ranged from 5 to 49%”
Claim · model-written summary
Sulfur fusions with trace element compounds hold promise for prolonged release of manganese, zinc and copper
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- fusions of certain trace element compounds with sulfure6
- Outcome
- prolonged release of Manganese, zinc and coppere6
- Qualifier
- hold promisee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by four successive crops of corn ( Zea mays L.)”
e6“fusions of certain trace element compounds with sulfur hold promise as a means of providing prolonged release of Manganese, zinc and copper for plants”
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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.