1 Aydın Adnan Menderes Üniversitesi, Ziraat Fakültesi, Toprak Bilimi ve Bitki Besleme Bölümü, Aydın
2 Harran Üniversitesi, Ziraat Fakültesi, Toprak Bilimi ve Bitki Besleme Bölümü Şanlıurfa
Abstract
This study investigated the effects of iron chelate (Fe-EDTA) application on soil and plant iron (Fe) nutrient content, wheat Fe uptake, yield, and chlorophyll index under both planted and unplanted soil conditions across different sampling periods. The experiment was conducted under greenhouse conditions using bread wheat (Triticum aestivum L. cv. Balcalı 2000) and arranged in a randomized plot design with four replications. Seven Fe-EDTA doses (0, 1, 2.5, 5, 10, 20, and 50 mg kg-1) were applied, while nitrogen (N), phosphorus (P), sulfur (S), zinc (Zn), and boron (B) were uniformly supplied to all pots as supportive fertilization. Soil and plant samples were collected at four harvest stages to determine Fe concentrations, dry matter yield, and chlorophyll index (SPAD). The highest increase in plant Fe concentration was recorded at 50 mg kg-1 in the fourth harvest, showing + 8.15 mg kg-1 compared to the control. Similarly, the highest soil Fe increase (+ 2.79 mg kg-1) occurred at 50 mg/kg in the first harvest. No statistically significant effect on SPAD values was observed (p>0.05). Correlation analysis indicated a strong relationship between soil and plant Fe content during the early stages (1st and 2nd harvests), which weakened over time. While low-to-moderate Fe doses (2.5–10 mg kg-1) improved dry matter yield, higher doses showed variable bioavailability due to soil fixation and adsorption dynamics. Therefore, it is emphasized that fertilization should be carefully planned in terms of both dose and timing.
Keywords
Fe-EDTA,yield,iron uptake,bioavailability,chlorophyll index (SPAD)
How to Cite
EMİNOĞLU, M. A., & ÖZTÜRK, H. (2025). Transport Dynamics of Chelated Iron Between Wheat and Soil. MAS Journal of Applied Sciences, 10(3), 456–469. https://doi.org/10.5281/zenodo.16744041
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Halime ÖZTÜRK2