Quantitative and Qualitative Response of Sugar Beet (Beta vulgaris L.) to Integrated Application of Chemical and Nano Fertilizers

In order to evaluation macro, micro, and chemical fertilizers on the quality and yield of sugar beet (Beta vulgaris L.), an experiment was conducted in randomized complete block design with 10 treatments and 3 replications at Agricultural and Natural Resources Research Station of Miandoab, Iran in 2016. The treatments were 100% chemical fertilizer as control, full micro-chelate nanofertilizer, NPK nanofertilizer, NPK nanofertilizer + full micro-chelate nanofertilizer, NPK nanofertilizer + 50% chemical fertilizers, full micro-chelate nanofertilizer + 50% chemical fertilizers, NPK nanofertilizer + full micro-chelate nanofertilizer + 50% chemical fertilizers, Fe nano+ Zn nano, Fe nano+ Zn nano+ NPK nanofertilizer and Fe nano+ Zn nano+ 50% chemical fertilizers. The results demonstrated that the highest and the lowest root yield and chlorophyll index were obtained in NPK nanofertilizer + full micro-chelate nanofertilizer + 50% chemical fertilizers and Fe nano+ Zn nano, respectively. Also, the highest sugar yield and white sugar yield were achieved in NPK nanofertilizer + full micro-chelate nanofertilizer + 50% chemical fertilizers. The highest content of α-amino-N, Na, K and molasses sugar was recorded in application of 100% chemical fertilizer. In addition to, minimum values of the mentioned indices were obtained in NPK nanofertilizer and full micro-chelate. Generally, application of NPK nanofertilizer+ full micro-chelate nanofertilizer+ 50% chemical fertilizers suggested as superior treatment and replacement of chemical fertilizers based on root yield, white sugar yield and extraction coefficient of sugar.