Factors affecting in determining constituent content of grain by NIR spectroscopy, 3: Effects of variety and harvested year on the accuracy of calibration, and instrument's change with the passage of time
1994
Natsuga, M. (Hokkaido Univ., Sapporo (Japan). Faculty of Agriculture) | Kawamura, S. | Itoh, K.
We carried out investigations regarding the possibility of applying certain varietal calibration to other varieties, and we found that there were significant differences among varietal calibrations. Therefore, it was difficult to apply the calibration for a certain variety to other varieties. Secondly, we carried out the investigations regarding the effect of harvested year to calibration, and found that calibration was affected by harvested year and consequently it is required to collect samples over several years. Then we carried out the investigations about instrument's change with the passage of time, and we found that there were significant differences among calibrations for each year over the effects of harvested year. Therefore, it is necessary to check instrument daily using standard samples to ensure the accuracy of NIR determination
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