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Critical Soil Zinc Deficiency Concentration and Tissue Iron : Zinc Ratio as a Diagnostic Tool for Prediction of Zinc Deficiency in Corn

Title data

Zare, Mohsen ; Khoshgoftarmanesh, Amir H. ; Norouzi, Mojtaba ; Schulin, Rainer:
Critical Soil Zinc Deficiency Concentration and Tissue Iron : Zinc Ratio as a Diagnostic Tool for Prediction of Zinc Deficiency in Corn.
In: Journal of Plant Nutrition. Vol. 32 (2009) Issue 12 . - pp. 1983-1993.
ISSN 1532-4087
DOI: https://doi.org/10.1080/01904160903308101

Abstract in another language

Zinc (Zn) fertilizer application is most economic if based on soil test and plant analysis information. The aim of this study was to determine the soil test [diethylenetrinitrilopentaacetate (DTPA) and ethylenetriaminepentaacetic acid (EDTA) extractable] Zn-critical levels and tissue Fe/Zn ratio for corn (Zea mays L.). A greenhouse experiment with 12 soil series and two Zn fertilizer treatments (0 and 15 mg Zn kg⁻¹ as zinc sulfate) was conducted. Critical Zn deficiency levels were determined using the Cate-Nelson procedure. Relative corn yield varied from 0.59 to 1.64. Critical deficiency levels based on the Cate-Nelson method were 1.50 and 1.17 mg kg⁻¹ for DTPA and EDTA-extracted soil Zn, respectively. No accurate critical deficiency level could be established using the shoot Zn concentrations. The critical iron (Fe)/Zn ratio in the corn shoot was 3.9. Values greater than 3.9 indicate hidden Zn deficiency and probable response to applied Zn.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER150094
Keywords: Cate-Nelson; DTPA; EDTA; relative yield; Zea mays L.
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Physics
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Physics > Chair Soil Physics - Univ.-Prof. Dr. Andrea Carminati
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Result of work at the UBT: No
DDC Subjects: 500 Science
Date Deposited: 15 Apr 2019 13:25
Last Modified: 15 Apr 2019 13:25
URI: https://eref.uni-bayreuth.de/id/eprint/48404