Abstract
The recovery of metallic aluminum from furnace slag (skim) requires a fluxing salt to encapsulate metal oxides.A change from sodium chloride to potassium chloride (KCl) as a fluxing agent may allow for the annual agronomic land application of up to 2 million metric tons of this currently landfilled by-product. Both greenhouse and laboratory experiments were employed to study the influence of skim applications on soil and plant uptake of metals. In the greenhouse, KCl-enriched skim, KCl, and potassium sulfate were evaluated as potassium (K) fertilizers for wheat and alfalfa were grown on three soils and washed quartz sand. All K sources increased dry matter yields in both crops on all soils. Total metal analysis of tissue samples and analysis of soil pH, exchangeable base, and available phosphorus will also be presented. The utilization of a KCl-enrich skim product as a K fertilizer may provide an environmentally suitable alternative to landfills as well as an inexpensive source of K fertilizer to agriculture.
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Claims 3
Claim · model-written summary
All K sources increased wheat dry matter yield on all soils.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- KCl-enriched skim, KCl, and potassium sulfatee1
- Outcome
- dry matter yieldse0
- Direction
- increasede0
- Qualifier
- all soilse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All K sources increased dry matter yields in both crops on all soils”
e1“KCl-enriched skim, KCl, and potassium sulfate were evaluated as potassium (K) fertilizers for wheat and alfalfa”
Claim · model-written summary
All K sources increased alfalfa dry matter yield on all soils.
- Taxon
- alfalfa
Medicago sativae1 - Treatment
- KCl-enriched skim, KCl, and potassium sulfatee1
- Outcome
- dry matter yieldse0
- Direction
- increasede0
- Qualifier
- all soilse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All K sources increased dry matter yields in both crops on all soils”
e1“KCl-enriched skim, KCl, and potassium sulfate were evaluated as potassium (K) fertilizers for wheat and alfalfa”
Claim · model-written summary
The authors proposed KCl-enriched skim as an environmentally suitable and inexpensive K fertilizer.
- Taxon
- wheat and alfalfaMedicago sativaTriticum aestivume1
- Outcome
- an environmentally suitable alternative to landfills as well as an inexpensive source of K fertilizer to agriculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The utilization of a KCl-enrich skim product as a K fertilizer may provide an environmentally suitable alternative to landfills as well as an inexpensive source of K fertilizer to agriculture”
e1“wheat and alfalfa”
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See all 6 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.