Journal article
Remote estimation of chlorophyll on two wheat cultivars in two rainfed environments
D Cammarano, G Fitzgerald, B Basso, D Chen, P Grace, G O'Leary
Crop and Pasture Science | CSIRO PUBLISHING | Published : 2011
DOI: 10.1071/CP10100
Abstract
For this study we hypothesise that the use of canopy chlorophyll content index (CCCI) and crop greenness will be useful in assessing crop nutritional status and provide a robust management tool by growth stage DC30 for fertiliser application across multiple sites without being confounded by soil and biomass differences. The objectives of this study were: (i) to study the robustness of the CCCI and greenness as a measure of crop N content at two different locations, and (ii) to validate the model developed for crop nitrogen (N) determination. Data were collected from two rain-fed field sites cropped to wheat, one in Southern Italy (Foggia) and the other in the south-eastern wheat belt of Aust..
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Funding Acknowledgements
The authors would like to thank CRC Future Farm Industries for providing financial support. We also thank the Department of Primary Industries (Horsham, Australia) and the Centre for Research in Agriculture (Foggia, Italy), for providing facilities for plot experiments. We acknowledge excellent technical assistance in the field experiment at Horsham provided by Russel Argall. We also thank an anonymous referee for the valuable comments and suggestions that helped improve the manuscript.