An evaluation of the use of DTPA and EDTA as extractants for micronutrients in moderately acid soils

@article{Haynes1983AnEO,
  title={An evaluation of the use of DTPA and EDTA as extractants for micronutrients in moderately acid soils},
  author={Richard J. Haynes and Russell S. Swift},
  journal={Plant and Soil},
  year={1983},
  volume={74},
  pages={111-122}
}
SummaryThe practice of buffering the pH of the extracting solution to neutrality or above when estimating available micronutrients with the 0.005M DTPA and 0.04M EDTA soil tests was studied using a number of soil samples from a liming experiment. Generally the soil constituted a better buffer system than the commonly used buffers (e. g. ammonium hydroxide, 1M ammonium acetate or 0.1M TEA). Raising the pH of extraction above that of the soil generally altered the quantitites of micronutrients… CONTINUE READING

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