Effect of Nitrogen and Boron Treatments on Harvest Index and Nitrogen Use Efficiency in Sugar Beet

Authors : Bedriye BİLİR, Kadir SALTALI

Pages : 881-894

Doi:10.15832/ankutbd.1197102

View : 343 | Download : 218

Publication Date : 2023-09-25

Article Type : Research Paper

Abstract :The use of optimum nitrogen insert ignore into journalissuearticles values(N); and boron insert ignore into journalissuearticles values(B); fertilizers is crucial for both yield and quality in sugar beet production. For this reason, it is necessary to determine the rate of use and recycling parameters of the applied nutrients by the plants in order to optimize yield and quality during production. This study aims to examine the effect of different doses of nitrogen insert ignore into journalissuearticles values(N); and boron insert ignore into journalissuearticles values(B); treatment on sugar harvest index insert ignore into journalissuearticles values(SHI);, nitrogen harvest index insert ignore into journalissuearticles values(NHI);, and nitrogen use efficiency insert ignore into journalissuearticles values(NUE); parameters and to determine the economic optimum nitrogen rates insert ignore into journalissuearticles values(EONR); in sugar beet. The study’s experiment was set up in a randomized block factorial design with three replications. Five doses of N insert ignore into journalissuearticles values(0, 90, 180, 270, and 360 kg N ha-1); and four doses of B insert ignore into journalissuearticles values(0, 2, 4, and 6 kg B ha-1); were applied in the study. According to the results of the research, the SHI decreased statistically significantly with the increase of dose of the N treatment, but the NHI was not affected by the N treatment. The physiological efficiency of nitrogen in taproot dry matter yield insert ignore into journalissuearticles values(NPETDMY); and physiological efficiency of nitrogen in sugar yield insert ignore into journalissuearticles values(NPESY); decreased statistically significantly insert ignore into journalissuearticles values(p<0.01); with the increase in the dose of N treatment. A similar case was observed in the parameters of nitrogen agronomic efficiency insert ignore into journalissuearticles values(NAgE); and nitrogen uptake efficiency insert ignore into journalissuearticles values(NUpE);. The increase in boron treatment doses statistically significantly insert ignore into journalissuearticles values(p<0.01); increased the NAgE in the first year. The EONR, calculated using the quadratic model, was found to be 240 kg N ha-1 on average 3 of two years. As a result, the nitrogen use potential decreased with the increase of N doses applied to sugar beet. The use of EONR is recommended for optimum sugar beet yield and quality in the region.
Keywords : Sugar harvest index, physiological efficiency of nitrogen, nitrogen agronomic efficiency, nitrogen uptake efficiency, economic optimum nitrogen rates

ORIGINAL ARTICLE URL