Effect of different nutrient system on quantitative and qualitative traits of sugar beet in different cultivation methods

In order to investigate the effect of different nutrition systems (chemical, organic, chemical+organic, and control) on quantitative and qualitative characteristics of sugar beet in various planting methods (direct planting, potting, and transplanting), an experiment has been conducted as split plot in randomized complete block design with three replicates between 2016 and 2018 in a field, 75 km northwest of Sabzevar. The results show that in the first year, the highest root yield (84.34tha-1) has been obtained from the potting method and chemical along with organic fertilizer application. In the second year, the highest yield (82.96tha-1) belongs to the chemical and organic fertilizer treatment in transplanting method. In both years, the highest sugar content has been obtained from control treatment and direct planting, with transplanting method having the highest sugar yield in both years (13.29 and 14.44 tha-1, respectively). Transplanting and potting method have had more root impurities than direct cultivation. Among nutrition systems, the highest root impurities is obtained in the combination of chemical and organic treatment. Direct culture and control produce the highest alkalinity index. Overall, despite the increase in root impurities in transplanting or potting along with chemical with organic treatment, these treatments produce the highest sugar yield. Accordingly, chemical and organic fertilization along with transplanting could be recommended to produce the highest root and sugar yield.