178 20thcentury 631 aerialphotographyinagriculture aeronauticsinagriculture africa agrarpolitik agricultural agriculturalbiotechnology agriculturalchemicals agriculturalchemistry agriculturalecology agriculturalengineering agriculturalextensionwork agriculturalindustriesemploymenteffectsoftechnologicaldevelopmentasia agriculturallaborers agriculturalmachinery agriculturalproductivity agriculturalsystems agriculture agricultureandstate alternativeagriculture asia aspectsocial aspectéconomique attitudes automation biochemicalengineering bioengineering biologicalcontrol china climaticchanges congresses cooperative corn crops cropsandclimate dairying developingcountries diet diffusionofinnovations droneaircraft durra east economicaspects economicconditions environmentalaspects ethics ethnology ethnoscience farmers farmmechanization farms fieldcrops foodadditives foodhabits foodindustry foodindustryandtrade foodsecurity foodsociology foodsupply general geneticallymodifiedfoods germplasmresources greenrevolution healthaspects histoire history imperialismandscience india innovations internetofthings interviews inventions korea(south) landuse landwirtschaft latinamerica meteorology methodology mexico mobilecommunicationsystem mobilecommunicationsystems mobilecommunicationsystemsineducation moralandethicalaspects namibia nanotechnology north nutrition on-farm organicfarming peasants pesticides pests plant-atmosphererelationships plantdiversityconservation plantphysiology politicalaspects politiqueagricole precisionfarming professional recherche remotesensing research robotics rural ruralconditions ruraldevelopment scheduledtribes small socialaspects socialconditions socialscience sociology soilconservation sub-saharan sustainableagriculture sustainabledevelopment technologicalinnovations technologytransfer traditionalfarming tropics unitedstates wirelesscommunicationsystems womeninagriculture womenindevelopment yemen