Abstract
The application of biosolids to agricultural fields is becoming increasingly common. The effect of biosolids on the behavior of metals in different plants has been reported to be variable and ambiguous. A greenhouse experiment was conducted on a soil spiked with four rates of copper (Cu) (0, 50, 100, and 150 mg kg−1) and zinc (Zn) (0, 150, 300, and 450 mg kg−1) in lettuce culture. When Cu and Zn were spiked to anaerobically-digested biosolids, their availability in lettuce increased. Root and shoot fresh weight decreased due to a decrease in photosynthetic rate. superoxide dismutase (SOD) and peroxidases (POD) activity increased after the application of Cu and Zn. The bioavailability of Zn in lettuce was greater than that of Cu because of a higher transfer factor in plants and due to a higher endogenous Zn concentration.These results will allow for better fertilization management when biosolids are applied to tomato culture.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Copper spiked into anaerobically digested biosolids increased its availability in lettuce.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- Cue0
- Outcome
- availability in lettucee0
- Direction
- increasede0
Not reportedComparatorSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When Cu and Zn were spiked to anaerobically-digested biosolids, their availability in lettuce increased.”
Claim · model-written summary
Zinc spiked into anaerobically digested biosolids increased its availability in lettuce.
- Taxon
- lettuceLactuca sativae0
- Treatment
- Zne0
- Outcome
- availability in lettucee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When Cu and Zn were spiked to anaerobically-digested biosolids, their availability in lettuce increased.”
Claim · model-written summary
Root fresh weight decreased under the copper and zinc treatment.
Not reportedTaxonComparator
Verbatim
e0“Root and shoot fresh weight decreased due to a decrease in photosynthetic rate.”
e1“after the application of Cu and Zn”
Claim · model-written summary
Shoot fresh weight decreased under the copper and zinc treatment.
Not reportedTaxonComparator
Verbatim
e0“Root and shoot fresh weight decreased due to a decrease in photosynthetic rate.”
e1“after the application of Cu and Zn”
Claim · model-written summary
Photosynthetic rate decreased with the copper and zinc treatment.
Not reportedTaxonComparator
Verbatim
e0“Root and shoot fresh weight decreased due to a decrease in photosynthetic rate.”
e1“after the application of Cu and Zn”
Claim · model-written summary
Superoxide dismutase activity increased after copper and zinc application.
Not reportedTaxonComparator
Verbatim
e0“superoxide dismutase (SOD) and peroxidases (POD) activity increased after the application of Cu and Zn.”
Claim · model-written summary
Peroxidase activity increased after copper and zinc application.
Not reportedTaxonComparator
Verbatim
e0“superoxide dismutase (SOD) and peroxidases (POD) activity increased after the application of Cu and Zn.”
Claim · model-written summary
Zinc bioavailability in lettuce exceeded copper bioavailability.
- Taxon
- lettuceLactuca sativae0
- Outcome
- bioavailability of Zne0
- Direction
- greatere0
- Comparator
- Cue0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bioavailability of Zn in lettuce was greater than that of Cu because of a higher transfer factor in plants and due to a higher endogenous Zn concentration.”
Claim · model-written summary
The zinc transfer factor in plants was higher than that of copper.
- Taxon
- lettuceLactuca sativae0
- Outcome
- transfer factore0
- Direction
- highere0
- Comparator
- Cue0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bioavailability of Zn in lettuce was greater than that of Cu because of a higher transfer factor in plants and due to a higher endogenous Zn concentration.”
Claim · model-written summary
Endogenous zinc concentration was higher than copper concentration.
- Taxon
- lettuceLactuca sativae0
- Outcome
- endogenous Zn concentratione0
- Direction
- highere0
- Comparator
- Cue0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bioavailability of Zn in lettuce was greater than that of Cu because of a higher transfer factor in plants and due to a higher endogenous Zn concentration.”
The same questions in other papers
copper atom · growth · Lactuca sativa (garden lettuce)Results differ
7 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →zinc atom · growth · Lactuca sativa (garden lettuce)Results differ
7 papers in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- positive
11 papers more in this group
See all 15 papers →zinc atom · physiology: photosynthesis · Lactuca sativa (garden lettuce)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
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.