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THE PARLIAMENTARY REVIEW Highlighting best practice 20 | AGROVISTA UK between Agrovista and the farm. Multiple sources of data are collected and combined to provide a tailored 'prescription' to address individual issues in individual fields on individual farms, and this is available in the office and in the field via smart-phone technology. UAV- (unmanned aerial vehicle) and satellite-mounted detectors allow the measurement of crop growth in season, which can be used to give an indication of final yield and whether areas of the crop will respond to inputs. UAV-mounted detectors can now be used to quantify, not just detect, grass weed populations and allow targeted improvements, meaning that emerging infestations can be targeted more effectively, by either chemical or non-chemical means. Accurate GPS coordinates of areas to be addressed are marked and can be navigated to using smart-phone technology at any time in the future. Further research is ongoing to detect disease and nutritional deficiencies in crops before the human eye can detect them so that they can be addressed before they have a non-reversible and detrimental impact on yield. When this information is combined with extremely localised weather data from an on-farm weather station it can be used to predict the perfect time for application, according to the stage of the crop, the prevailing weather conditions for maximum effect and protection of the environment. Over time, a detailed, historical archive of conditions and improvements in crop growth will emerge, allowing levels of farm output to be calculated, removing at least one of the variables in what will be a changing future landscape. Smart-phone technology allows navigation back to problem areas UAV quantification of grass weed infestations in a field of wheat