Remote sensing of nitrogen in rice crops (2006)

Ciavarella, S Lewin, L.G Blackney, T Batten, G


This IREC Farmer Newsletter article covers the project investigating the potential to combine the precision of the NIR Rice Tissue Test with the sampling ease and overall "picture" provided by remote sensing imagery. The article presents an update of the project and what is new in the past year. Current remote sensing produces a map distinguishing areas of differing vegetative growth, which can aid in determining where to take samples for NIR analysis but it is not a direct measurement of plant nutrients. Correlations between spectral information from satellite imagery and results from traditional NIR tissue testing suggest a strong relationship between the two, paving the way for remote nitrogen testing for rice crops