Non-destructive proximal sensing for early detection of citrus nutrient and hydric status
Menesatti, P.; Pallottino, F.; Antonucci, F.; Roccuzzo, G.; Intrigliolo, F.; Costa, C.
Advances in Citrus Nutrition
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This chapter reports the application of non-destructive optical-based technologies for the rapid and ef fi cient assessment of the nutritional status and water stress detection improving their use ef fi ciency. In the proximal sensing section, it was presented the use of spectral and hyperspectral imaging to evaluate the plant nutritional status. Proximal sensing offers the opportunity to rapidly collect a huge amount of crop canopy information. In the infrared thermography and thermometry section, results about their use to assess plant water stress analysing canopy and soil temperature variation were reported. Finally, the use of spectrophotometry and of the chlorophyll meter for the citrus nutrient detection is presented. The analyses of data were carried out by linear regressions and by multivariate statistics.