Potato nutritional status at the onset of tuberisation - a yield prediction tool
A reliable tuber yield prognosis requires a complex statistical analysis of potato nutritional status in the fully developed 4th leaf at the onset of tuberisation.This hypothesis was validated in the series of field experiments conducted in 2006-2008 in Poland.The experimental design was composed of two nitrogen (N) rates (60, 120 kg/ha), two N fer