Abstract
Zinc deficiency in maize plants is a common problem, particularly in calcareous soils with pH above 7. This study aimed to investigate the impact of zinc sulfate (ZnSO4) applied in different forms (foliar and soil application) and concentrations on maize yield, zinc uptake, and nutrient use efficiency (NUE) in calcareous soil. The results demonstrated that zinc application significantly increased maize yield, zinc uptake, NUE, and the uptake of Nitrogen, Phosphorus, and Potassium. Foliar application of ZnSO4 was more effective than soil application in enhancing zinc uptake, with the highest uptake observed in plants treated with 1.5% ZnSO4 foliar spray. Additionally, zinc application increased zinc content in grains and surface soil, with the highest zinc content in grains found in plants treated with 1.5% ZnSO4 foliar spray and the highest zinc content in surface soil observed in plants treated with 10 kg ha-1 ZnSO4 soil application. These findings suggested that foliar application of ZnSO4 is an effective strategy for improving zinc uptake and grain zinc content in maize plants grown in calcareous soils.
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Claims 11
Claim · model-written summary
Zinc application significantly increased maize yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“zinc application significantly increased maize yield, zinc uptake, NUE, and the uptake of Nitrogen, Phosphorus, and Potassium.”
Claim · model-written summary
Zinc application significantly increased zinc uptake.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“zinc application significantly increased maize yield, zinc uptake, NUE, and the uptake of Nitrogen, Phosphorus, and Potassium.”
Claim · model-written summary
Zinc application significantly increased NUE.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“zinc application significantly increased maize yield, zinc uptake, NUE, and the uptake of Nitrogen, Phosphorus, and Potassium.”
Claim · model-written summary
Zinc application significantly increased nitrogen, phosphorus, and potassium uptake.
- Treatment
- zinc applicatione0
- Outcome
- uptake of Nitrogen, Phosphorus, and Potassiume0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“zinc application significantly increased maize yield, zinc uptake, NUE, and the uptake of Nitrogen, Phosphorus, and Potassium.”
Claim · model-written summary
Foliar ZnSO4 yielded greater zinc uptake than soil application.
- Treatment
- Foliar application of ZnSO4e0
- Outcome
- zinc uptakee0
- Direction
- more effectivee0
- Comparator
- soil applicatione0
Not reportedTaxon
Verbatim
e0“Foliar application of ZnSO4 was more effective than soil application in enhancing zinc uptake”
Claim · model-written summary
The 1.5% foliar spray had the highest zinc uptake.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“highest uptake observed in plants treated with 1.5% ZnSO4 foliar spray”
e1“maize plants grown in calcareous soils”
Claim · model-written summary
Zinc application increased grain zinc content.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“zinc application increased zinc content in grains and surface soil”
e1“maize plants grown in calcareous soils”
Claim · model-written summary
Zinc application increased surface soil zinc content.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“zinc application increased zinc content in grains and surface soil”
e1“maize plants grown in calcareous soils”
Claim · model-written summary
Grain zinc content was highest with the 1.5% foliar spray.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“highest zinc content in grains found in plants treated with 1.5% ZnSO4 foliar spray”
e1“maize plants grown in calcareous soils”
Claim · model-written summary
Surface soil zinc content was highest with 10 kg ha-1 soil ZnSO4.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“highest zinc content in surface soil observed in plants treated with 10 kg ha-1 ZnSO4 soil application”
e1“maize plants grown in calcareous soils”
Claim · model-written summary
The authors recommend foliar ZnSO4 to improve zinc uptake and grain zinc content.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“foliar application of ZnSO4 is an effective strategy for improving zinc uptake and grain zinc content in maize plants grown in calcareous soils.”
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See all 161 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.