Abstract
The main effects and interactions of foliar applications of MnSO4, ZnSO4, and urea in factorial combinations on nutrients in Valencia orange leaves were studied. The presence of MnSO4 in ZnSO4 foliar sprays containing Na2CO3 as precipitating agent significantly decreased the concentration of soluble Zn ions in solution and, as a consequence, decreased the concentration of Zn in the leaves as compared with Zn concentration found in the spray solutions and leaves of trees sprayed with ZnSO4 alone. The presence of ZnSO4 plus Na2CO3 in MnSO4-urea foliar sprays significantly increased the concentration of soluble Mn ions in solution, causing increased Mn concentration in the leaves of trees sprayed with this solution. Considering all Mn-urea treatments in this experiment, a positive interaction between Mn and urea foliar applications occurred: Mn concentration increased in the leaves of trees sprayed with MnSO4-urea mixture. This increase in Mn concentration in the leaves may have been due to better uptake of Mn by the leaves when urea was present, since the concentration of Mn in the spray solution was not affected significantly by the presence or absence of urea in Mn foliar sprays.
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Claims 6
Claim · model-written summary
MnSO4 in the zinc spray decreased soluble zinc concentration in spray solution.
- Taxon
- Valencia orange
Citrus sinensist0 - Treatment
- MnSO4 in ZnSO4 foliar sprays containing Na2CO3e0
- Outcome
- concentration of soluble Zn ions in solutione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The presence of MnSO4 in ZnSO4 foliar sprays containing Na2CO3 as precipitating agent significantly decreased the concentration of soluble Zn ions in solution”
t0“Valencia orange”
Claim · model-written summary
MnSO4 in zinc sprays decreased zinc concentration in orange leaves relative to zinc sprays alone.
- Taxon
- Valencia orangeCitrus sinensist0
- Treatment
- MnSO4e0
- Outcome
- concentration of Zn in the leavese0
- Direction
- decreasede0
- Comparator
- trees sprayed with ZnSO4 alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The presence of MnSO4 in ZnSO4 foliar sprays containing Na2CO3 as precipitating agent significantly decreased the concentration of soluble Zn ions in solution and, as a consequence, decreased the concentration of Zn in the leaves as compared with Zn concentration found in the spray solutions and leaves of trees sprayed with ZnSO4 alone”
t0“Valencia orange leaves as affected by the composition of manganese, zinc, and urea sprays”
Claim · model-written summary
ZnSO4 plus Na2CO3 increased soluble manganese ion concentration in spray solution.
- Taxon
- Valencia orangeCitrus sinensist0
- Treatment
- ZnSO4 plus Na2CO3 in MnSO4-urea foliar sprayse0
- Outcome
- concentration of soluble Mn ions in solutione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The presence of ZnSO4 plus Na2CO3 in MnSO4-urea foliar sprays significantly increased the concentration of soluble Mn ions in solution”
t0“Valencia orange”
Claim · model-written summary
The zinc and carbonate addition increased manganese concentration in leaves.
- Taxon
- Valencia orangeCitrus sinensist0
- Treatment
- zinc, and urea sprayst0
- Outcome
- Mn concentration in the leavese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“causing increased Mn concentration in the leaves of trees sprayed with this solution”
t0“Valencia orange leaves as affected by the composition of manganese, zinc, and urea sprays”
Claim · model-written summary
MnSO4-urea mixture increased manganese concentration in leaves.
- Taxon
- Valencia orangeCitrus sinensist0
- Treatment
- MnSO4-urea mixturee0
- Outcome
- Mn concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mn concentration increased in the leaves of trees sprayed with MnSO4-urea mixture”
t0“Valencia orange”
Claim · model-written summary
Urea did not significantly affect manganese concentration in spray solution.
- Taxon
- Valencia orangeCitrus sinensist0
- Treatment
- presence or absence of urea in Mn foliar sprayse0
- Outcome
- concentration of Mn in the spray solutione0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the concentration of Mn in the spray solution was not affected significantly by the presence or absence of urea in Mn foliar sprays”
t0“Valencia orange”
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