?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=https%3A%2F%2Forgprints.org%2Fid%2Feprint%2F11354%2F&rft.title=Using+multi-temporal+sensor-based+measurements+in+early+growth+stages+to+estimate+potential+yield+of+spring+barley+(Hordeum+vulgare+L.)+varieties+in+competition+with+weeds&rft.creator=Hansen%2C+Preben+Klarskov&rft.subject=Crop+health%2C+quality%2C+protection&rft.subject=+Weed+management&rft.description=At+the+time+for+weed+control%2C+either+chemical+or+physical%2C+the+potential+yield+of+the+crop+(and+thus+the+potential+size+of+the+yield+loss+due+to+weeds)+is+very+uncertain%2C+as+only+a+minor+part+of+the+growing+season+has+passed+and+the+time+for+the+major+yield+formation+is+after+the+weed+control.%0D%0AThe+aim+of+this+study+was+to+investigate+four+scenarios+of+using+sensor-based+reflectance%2C+vegetation+cover-+and+canopy+structure+measurements+in+the+early+growth+stages+to+estimate+the+potential+yield+of+four+pure+spring+barley+varieties+and+four+variety+mixtures+of+spring+barley+grown+in+competition+with+weeds+under+two+different+nutrient+levels+in+two+years.+%0D%0A&rft.date=2007&rft.type=Working+paper&rft.type=NonPeerReviewed&rft.format=source&rft.language=en&rft.identifier=%2Fid%2Feprint%2F11354%2F1%2F11354.doc&rft.identifier=+++Hansen%2C+Preben+Klarskov++++(2007)+Using+multi-temporal+sensor-based+measurements+in+early+growth+stages+to+estimate+potential+yield+of+spring+barley+(Hordeum+vulgare+L.)+varieties+in+competition+with+weeds.++++Working+paper%2C+Department+of+Integrated+Pest+Management%2C+University+of+Aarhus%2C+Faculty+of+Agricultural+Sciences+.+++%5BUnpublished%5D+++++