Site-specific weed management requires sensing of the actual weed infestation levels in agricultural fields to adapt the management accordingly. However, sophisticated sensor systems are not yet in wider practical use, since they are not easily available for the farmers and their handling as well as the management practice requires additional efforts. A new sensor-based weed detection method is...

The smart sprayer, a local-vision-sensor-based precision chemical application system, was developed and tested. The long-term objectives of this project were to develop new technologies to estimate weed density and size in real-time, realize site-specific weed control, and effectively reduce the amount of herbicide applied to major crop fields. This research integrated a real-time machine visio...

1 INRA, UMR 1210 Biologie et Gestion des Adventices, BP 86510, 17 rue Sully, 21065 Dijon Cedex, France 2 UNIP, Union Nationale Interprofessionnelle des plantes riches en Protéines, 12, avenue George V, 75008 Paris, France 3 Chambre d’Agriculture de l’Yonne, 14 bis, Rue Guynemer, 89015 Auxerre, France Abstract: Simplified rotations often select weed flora consisting of on...

Intensive forest management practices have been shown to increase tree growth and shorten rotation time. However, they may also lead to an increased need for insect pest management because of higher infestation levels and lower action thresholds. To investigate the relationship between intensive management practices and insect infestation, maximum growth potential studies of loblolly pine, Pinu...

abstract in order to evaluate the influence of nitrogen application and duration of weed interference on corn (zea mays l.) yield and yield components, a field study was conducted in 2004 at the ferdowsi university of mashhad research field. the experimental design was a randomized complete block with a factorial treatment arrangement replicated three times. nitrogen fertilizer was applied at r...