Abstract
The balanced nitrogen (N) supply for sweet potato (Ipomoea potatoes (L.) Lam.) is essential to obtain high yields. This study aims to evaluate the growth, yield, nutrient uptake and removal by sweetpotato in response to N fertilization management using a chlorophyll meter. For this purpose, it is sought to establish the best N sufficiency index (NSI) and N rate for sweetpotato fertilizati…