Claim · model-written summary
Calibration stamps, nitrogen-rich strips and ramped calibration strips can be used visually or with NDVI handheld sensors.
Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingDirectionValueQualifier
Verbatim
e0“These methods can be used either as visual tools or along with NDVI handheld sensors for accuracy”
Title
K. GIRMA; C. MACK; R. TAYLOR; et al. The Journal of Agricultural Science 2007. doi:10.1017/s0021859606006708
Other claims from this paper (3)
- Method / resource Ramped calibration strips include more pre-plant nitrogen rates to improve top-dress nitrogen estimation.
- Observation Hypotheses underlying the methods were developed and tested in the USA and Mexico.
- Recommendation The authors suggest the methods are simple enough for farmers in developed and developing countries to apply.