Summary
The effectiveness of a new carrier for iron supply − Fe+2 and Fe+3 − absorbed to montmorillonite clay, was compared to the more conventional iron salts and chelate carriers by a plant experiment. In the greenhouse experiment, iron absorbed to clay and added to the plant is superior or similar in its effects on plant yield and iron uptake to chelated iron added in equivalent rates and to iron salts added at much higher rates. The possible reasons for the effect of iron-clay are discussed.
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Navrot, J., Banin, A. Tomato plant response to iron supply in various carrier forms. Plant Soil 42, 309–312 (1975). https://doi.org/10.1007/BF02186993
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DOI: https://doi.org/10.1007/BF02186993