Claim · model-written summary
The two-equation procedure lessened but did not eliminate those diagnostic problems.
- Taxon
- sweet cherry and hazelnutt0
- Outcome
- difficultiese0
- Direction
- lessened but not entirely eliminatede0
- Comparator
- original two‐equation proceduree0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Verbatim
e0“These difficulties are lessened but not entirely eliminated with the original two‐equation procedure”
t0“sweet cherry and hazelnut”
Title
Diagnostic biases in DRIS evaluations on sweet cherry and hazelnut
Timothy L. Righetti; Othman Alkoshab; Kris Wilder Communications in Soil Science and Plant Analysis 1988. doi:10.1080/00103628809368025
Other claims from this paper (8)
- Method / resource One-equation DRIS indices had element-specific minimum or maximum limits.
- Method / resource The possible range of DRIS index values varied considerably among elements.
- Method / resource Using the unsigned sum of DRIS indices masked some relative deficiencies or excesses.
- Method / resource Relations between DRIS indices and concentrations differed across N, K, P, Ca, Mg, Mn, Fe, Cu, B and Zn regardless of calculation method.
- Method / resource Some DRIS indices depended so strongly on their own element concentration that ratio diagnosis offered little advantage over sufficiency-range diagnosis.
- Method / resource Other DRIS indices depended on concentrations of other elements enough to be of little use for nutritional evaluation.
- Method / resource DRIS did not detect every deficiency or excess.
- Recommendation The authors recommended DRIS as a supplement to sufficiency-range interpretation when severe imbalances exist.