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Relating active optical sensor measurements to barley yield
Published online by Cambridge University Press: 01 June 2017
Abstract
The objective of this work was to determine the most appropriate growth stage to make reflectance measurements that would indicate yield in high yielding winter barley crops. The results indicated that where different rates of fertiliser N were applied, at the same crop growth stages, the best relationship between vegetation indices, calculated on the basis of reflectance measurements, and grain yield were found to occur from booting to early grain fill. Where the timing of fertiliser N inputs was different, for a given level of fertiliser N addition, poor correlations between vegetation indices and grain yield during the stem elongation phase were observed.
Keywords
- Type
- Crop Sensors and Sensing
- Information
- Copyright
- © The Animal Consortium 2017