Response to Comments by Provance-Bowley on Continuing Assessment of the 5-Day Sodium Carbonate-Ammonium Nitrate Extraction Assay as an Indicator Test for Silicon Fertilizers.

@article{Zellner2015ResponseTC,
  title={Response to Comments by Provance-Bowley on Continuing Assessment of the 5-Day Sodium Carbonate-Ammonium Nitrate Extraction Assay as an Indicator Test for Silicon Fertilizers.},
  author={Wendy Zellner and Russell L. Friedrich and Sujin Kim and Douglas Sturtz and Jonathan M. Frantz and James E. Altland and Charles J. Krause},
  journal={Journal of AOAC International},
  year={2015}
}
The 5-day sodium carbonate-ammonium nitrate extraction assay (5-day method) has been recognized by the American Association of Plant Food Control Officials as a validated test method to identify fertilizers or beneficial substances that provide plant-available silicon (Si). The test method used the molybdenum blue colorimetric assay to quantify percentage… CONTINUE READING