ABSTRACT
Beta vulgaris
) nitrogen management. Sugar beet is a crop that leaves much of the nitrogen it takes up during the growing season in the field at harvest. A portion of that nitrogen can be credited against the supplemental fertilizer nitrogen required by the following crop. Satellite imagery can be used to delineate areas within sugar beet fields where higher or lower nitrogen credits can be applied to the subsequent crop. The amount of nitrogen credits for subsequent crops is directly related to green reflectance of the sugar beet’s canopy. Recent research using a ground-based active sensor has shown promise through finer image resolution and the opportunity for more timely imagery acquisition.
