Abstract
ABSTRACT The application of pig slurry may have different influence on copper (Cu) and zinc (Zn) dynamics in the soil compared with mineral fertilization. The aim of this research was to determine the different forms of Cu and Zn in soil and their uptake by bean plants in response to the application of mineral fertilizer and pig slurry (PS). The treatments were: mineral fertilizer (Cu and Zn oxides) and liquid pig slurry, at increasing rates (0/0, 1.7/6.0, 3.4/12.0 and 6.8/24.0 kg ha-1 Cu/Zn, respectively) applied in a Rhodic Kandiudox. PS increased the Cu content in soil in the exchangeable form, Fe oxides and residual, while the mineral fertilizer increased Cu contents in the fraction associated with soil organic matter. Soil Zn contents in the fractions available, exchangeable and SOM were highest under mineral fertilization, while in the soluble fraction the contents were highest under PS. The fertilizers had not impact on Cu and Zn contents associated with Al oxides, and these elements were mostly associated with Fe oxides in the soil. PS promoted the highest biomass production in shoots and roots of the bean plants, reflecting in the highest accumulation of Cu and Zn.
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Claims 10
Claim · model-written summary
Pig slurry increased exchangeable soil Cu.
Not reportedComparator
Verbatim
e0“PS increased the Cu content in soil in the exchangeable form”
t0“bean crop”
Claim · model-written summary
Pig slurry increased soil Cu associated with Fe oxides.
Not reportedComparator
Verbatim
e0“PS increased the Cu content in soil in the exchangeable form, Fe oxides and residual”
t0“bean crop”
Claim · model-written summary
Pig slurry increased residual soil Cu.
Not reportedComparator
Verbatim
e0“PS increased the Cu content in soil in the exchangeable form, Fe oxides and residual”
t0“bean crop”
Claim · model-written summary
Mineral fertilizer increased Cu associated with soil organic matter.
- Taxon
- beant0
- Treatment
- mineral fertilizere0
- Outcome
- Cu contents in the fraction associated with soil organic mattere0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“the mineral fertilizer increased Cu contents in the fraction associated with soil organic matter”
t0“bean crop”
Claim · model-written summary
Available, exchangeable and SOM soil Zn fractions were highest under mineral fertilization.
- Taxon
- beant0
- Treatment
- mineral fertilizatione0
- Outcome
- Soil Zn contents in the fractions available, exchangeable and SOMe0
- Direction
- higheste0
Not reportedComparator
Verbatim
e0“Soil Zn contents in the fractions available, exchangeable and SOM were highest under mineral fertilization”
t0“bean crop”
Claim · model-written summary
Soluble soil Zn was highest under pig slurry.
Not reportedComparator
Verbatim
e0“in the soluble fraction the contents were highest under PS”
t0“bean crop”
Claim · model-written summary
Fertilizers did not affect soil Cu and Zn associated with Al oxides.
- Taxon
- beant0
- Treatment
- fertilizerse0
- Outcome
- Cu and Zn contents associated with Al oxidese0
- Direction
- not impacte0
Not reportedComparator
Verbatim
e0“The fertilizers had not impact on Cu and Zn contents associated with Al oxides”
t0“bean crop”
Claim · model-written summary
Soil Cu and Zn were mostly associated with Fe oxides.
Verbatim
e0“these elements were mostly associated with Fe oxides in the soil”
t0“bean crop”
Claim · model-written summary
Pig slurry produced the highest shoot and root biomass in bean plants.
Not reportedComparator
Verbatim
e0“PS promoted the highest biomass production in shoots and roots of the bean plants”
t0“bean crop”
Claim · model-written summary
Pig slurry produced the highest Cu and Zn accumulation in bean plants.
Not reportedComparator
Verbatim
e0“PS promoted the highest biomass production in shoots and roots of the bean plants, reflecting in the highest accumulation of Cu and Zn”
t0“bean crop”
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