Abstract
Intensive application of nitrogen and phosphorus fertilizers can lead to negative consequences, such as a decrease in Zn content, as well as an increase of Cd in plants. In a long-term field experiment, we studied the influence of the increasing doses of phosphorus fertilizers on the concentration of Zn and Cd in the soil and corn plants (stem and leaves). The obtained results show that the application of the increasing doses of phosphorus significantly decreased the pH reaction of the soil, but did not affect the amount of total and potentially available Zn in the soil. Zinc was accumulated in the corn stem to a higher extent on the unfertilized treatment with respect to corn stem exposed to other fertilizing treatments. Bearing in mind the fact that phosphorus fertilizers contain a different concentration of Cd, results have shown that the long-term application of the increasing doses of phosphorus has led to higher amounts of Cd in the soil and in corn as well, in the plots fertilized with 100 and 150 kg P2O5/ha. However, those values are far below the maximum permissible recommendation.
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Claims 6
Claim · model-written summary
Increasing phosphorus doses significantly decreased soil pH.
- Taxon
- corn plants
Zea mays subsp. mayst0 - Treatment
- increasing doses of phosphoruse0
- Outcome
- pH reaction of the soile0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of the increasing doses of phosphorus significantly decreased the pH reaction of the soil”
t0“corn plants”
Claim · model-written summary
Increasing phosphorus doses did not affect total and potentially available soil Zn.
- Taxon
- corn plantsZea mays subsp. mayst0
- Treatment
- increasing doses of phosphoruse0
- Outcome
- total and potentially available Zn in the soile0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of the increasing doses of phosphorus significantly decreased the pH reaction of the soil, but did not affect the amount of total and potentially available Zn in the soil”
t0“corn plants”
Claim · model-written summary
Corn stems accumulated more zinc without fertilization than under other fertilization treatments.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- steme0
- Treatment
- unfertilized treatmente0
- Outcome
- Zinc was accumulated in the corn steme0
- Direction
- highere0
- Comparator
- other fertilizing treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc was accumulated in the corn stem to a higher extent on the unfertilized treatment with respect to corn stem exposed to other fertilizing treatments”
Claim · model-written summary
Long-term phosphorus doses raised soil Cd in plots fertilized with 100 and 150 kg P2O5/ha.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- increasing doses of phosphoruse0
- Outcome
- Cd in the soile0
- Direction
- highere0
- Qualifier
- plots fertilized with 100 and 150 kg P2O5/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-term application of the increasing doses of phosphorus has led to higher amounts of Cd in the soil and in corn as well, in the plots fertilized with 100 and 150 kg P2O5/ha”
Claim · model-written summary
Long-term phosphorus doses raised Cd in corn in plots fertilized with 100 and 150 kg P2O5/ha.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- increasing doses of phosphoruse0
- Outcome
- Cd in the soil and in corne0
- Direction
- highere0
- Qualifier
- plots fertilized with 100 and 150 kg P2O5/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-term application of the increasing doses of phosphorus has led to higher amounts of Cd in the soil and in corn as well, in the plots fertilized with 100 and 150 kg P2O5/ha”
Claim · model-written summary
The reported Cd values were far below the maximum permissible recommendation.
- Taxon
- corn plantsZea mays subsp. mayst0
- Outcome
- those values are far below the maximum permissible recommendatione0
- Direction
- far belowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“those values are far below the maximum permissible recommendation”
t0“corn plants”
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