%0 Journal Article %T Using active canopy sensors and chlorophyll meters to estimate grapevine nitrogen status and productivity %A Taskos, D. %A Koundouras, S. %A Stamatiadis, S. %A Zioziou, E. %A Nikolaou, N. %A Karakioulakis, K. %A Theodorou, N. %J Precision Agriculture %V 16 %N 1 %P 77-98 %@ 1385-2256 %D 2014-07-05 %I Springer US %~ DeepDyve