Claim · model-written summary
At higher doses, maize Zn uptake from ZnEDTA was approximately twice that from ZnSO4.
- Treatment
- ZnEDTAe1
- Outcome
- Zn uptakee1
- Direction
- twice as muche1
- Value
- approximately twicee1
- Qualifier
- 5.0 mg kg-1 Zn and 10 mg kg-1 Zne1
- Comparator
- ZnSO4e1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“maize (Zea mays L. var. ‘P37N01’)”
e1“In the case of higher rates (5.0 mg kg-1 Zn and 10 mg kg-1 Zn), Zn uptake from ZnEDTA was approximately twice as much as that of ZnSO4”
Title
Response of maize to soil applied ZnSO4 and ZnEDTA
Rita KREMPER; Andrea BALLA KOVÁCS; Evelin JUHÁSZ; et al. Notulae Botanicae Horti Agrobotanici Cluj-Napoca 2024. doi:10.15835/nbha52414016
Other claims from this paper (8)
- Intervention effect ZnEDTA and ZnSO4 increased maize dry matter production by an average of 16% versus control.
- Intervention effect At 2.5 mg kg-1 Zn, ZnEDTA gave 1.3-fold greater shoot Zn uptake than ZnSO4.
- Intervention effect Increasing ZnEDTA doses enhanced soil DTPA Zn concentration to 1.8, 3.0 and 6.3 mg kg-1.
- Intervention effect Increasing ZnSO4 doses enhanced soil DTPA Zn concentration to 1.9, 3.5 and 6.5 mg kg-1.
- Method / resource DTPA soil extractant failed to indicate the difference in Zn availability between fertilizer treatments.
- Observation Plants absorbed 0.6-1.7% of added Zn doses.
- Observation For both fertilizers, 48-59% of added Zn was measured back as DTPA-Zn.
- Mechanism The remaining added Zn presumably converted to less available forms.