Spatial variability in orchards after land transformation: Consequences for precision agriculture practices

摘要: Abstract The change from traditional to a more mechanized and technical agriculture has involved, in many cases, land transformations. This supposed alteration of landforms soils, with significant consequences. effects induced soil variability the subsequent implications site-specific crop management have not been sufficiently studied. present work investigated application resistivity sensor (Veris 3100), map apparent electrical conductivity (ECa), detailed multispectral airborne images analyse spatial assist orchard management. study was carried out peach (Prunus persica (L.) Stokes), an area transformed 1980 decade rainfed arable crops irrigated orchards. A total 40 samples at two depths (0–30 cm 30–60 cm) were analysed compared ECa normalised difference vegetation index (NDVI). Two types statistical analysis performed between or NDVI classes properties: linear correlation multivariate variance (MANOVA). results showed that transformation altered distribution continuity properties. Although relationship tree vigour could be expected, it found, even case trees planted soils salts content above tolerance threshold. zones proposed: a) delineated according leach high zones, b) regulate yield. These strategies respond original functions due previous years.