Effect of Applications Deficit Nitrogen with Deficit Irrigation on Sugarbeet Sugar Yield and Nitrogen Use Performance

Authors : Ayşe ÖKSÜZ, Ramazan TOPAK

Pages : 33-41

View : 38 | Download : 30

Publication Date : 2015-06-25

Article Type : Research Paper

Abstract :The field works of that project was performed at 2013 growing season in Konya-Çumra Agro–Production High School. Stine variety of sugar beet was used in research. In that regard, the effect of deficit nitrogen applications by deficit drip irrigation on nitrogen use and sugar yield was evaluated. In research, the findings obtained from full irrigation insert ignore into journalissuearticles values(FI); and full nitrogen insert ignore into journalissuearticles values(FN); applications as well as two conventional deficit irrigations of the 75 % and 50 % of the FI insert ignore into journalissuearticles values(CDI75 and CDI50); and two deficit nitrogen levels 75 % insert ignore into journalissuearticles values(DN75); and 50 % insert ignore into journalissuearticles values(DN50); of FN were analyzed. When about 35-40 % of the available water capacity within the root zone depth was consumed, subjects’irrigations were started and all the subsequent irrigations were performed in accordance with this principle. One fourth nitrogen requirement of plants was applied to the seed bed, and remaining nitro-gen amounts were applied in four equal parts by fertigation technique in first 4 irrigation events. The results showed that although irrigation treatments had significant effect on sugar yield insert ignore into journalissuearticles values(P<0.01);, nitrogen levels had no significant effect. Nitrogen levels had significant effect on plant nitrogen use efficiency insert ignore into journalissuearticles values(P<0.01);. Irrigation treatments had significant effect but different nitrogen levels had no significant effect on nitrogen contents of roots insert ignore into journalissuearticles values(P<0.01); and leaves insert ignore into journalissuearticles values(P<0.01);.
Keywords : Şekerpancarı, Damla sulama, Kısıntılı sulama, Kısıntılı gübreleme, Azot Kullanma Randımanı, Konya

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