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[]-EDDS Ligand as a Soil Solubilizer of Fe, Mn, Zn, and Cu to Improve Plant Nutrition in Deficient Soils. | LitMetric
The deficiencies of iron, manganese, zinc, and copper in calcareous soils are a worldwide problem affecting plant growth and fruit quality, usually minimized by the application of recalcitrant synthetic metal chelates. Biodegradable ligand []-EDDS is an eco-friendly substitute. This study investigates the capacity of []-EDDS to mobilize micronutrients from agronomic soils and improve plant nutrition. A batch and a plant experiment ( . Black Pole) with three agronomic soils was conducted to monitor the micronutrients solubilized by []-EDDS, the ligand degradation, and plant uptake. The results demonstrated the high capacity of []-EDDS to solubilize Fe and other micronutrients related to its chemical behavior and the enhancement of plant nutrition. The best results were shown in sandy-clay soil with low Fe, typically found in the Mediterranean areas. The results support the direct application of the ligand to soils and a possible biotechnological application of the ligand-producer bacteria.
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