Journal of Food, Agriculture and Environment

Effect of foliar N and B application at different growth stages of sugar beet cultivars on root and sugar yield, sugar percent and root dry matter

Author(s):

E. Farajzadeh Memari Tabrizi ¹, M. Yarnia ^2*, M.B. Khorshidi ³, F. Rahimzadeh Khoei ²

Recieved Date: 2008-04-12, Accepted Date: 2008-08-26

Abstract:

For studying N and B containing fertilizers and different application methods on sugar beet cultivars, an experiment was conducted in Islamic Azad University, Tabriz Branch, Agricultural Faculty Station in 2005-2006. Three replicates, three cultivars (7233 – calibrate, IC and PP₂₂) and fertilizer application methods (soil and foliar N and B and mixed N and B application at 6-8 and 14-16 leaf stages) were arranged in a RCBD based factorial design. Root yield, sugar and root dry matter percentage and root neatness were measured after harvesting. ANOVA showed that N and mixed N and B application did not have significant effect on root and sugar yield but had significant effect on sugar percentage. Soil B application had more significant effect than spraying on PP₂₂ and 7233. Effect of foliar N and B application on root yield depends on cultivar and application time. N foliar application in PP₂₂ led to increasing sugar yield, and root yield reached 100 ton/ha. B soil application led to increasing sugar yield in PP₂₂ and 7233 but N and B foliar application at 6-8 leaf stage led to increasing sugar yield in PP₂₂ and IC and soil application in 7233. B application increased quality beet production. Foliar N and B application is recommendable but foliar B application only recommendable on IC. Soil application of N increased sugar yield in 7233 and IC but foliar application at 14-16 leaf stage increased sugar yield in PP₂₂. Soil B application in 7233 and N and B application in 7233 increased sugar yield. If the aim is to increase root yield, then foliar N and N and B application will be suitable, but for increasing sugar percent, foliar N application at 14-16 leaf stage for IC and PP₂₂ and soil application of N for 7233 is recommend. Soil application of B for PP₂₂ and IC and foliar B application at 14-16 leaf stage for 7233 increased sugar percent. Foliar application at 6-8 leaf stage for PP₂₂ and soil N and B application is recommendable for IC and 7233.

Keywords:

Sugar beet, foliar application, macro and micro elements (nitrogen and boron)

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Journal: Journal of Food, Agriculture and Environment
Year: 2008
Volume: 6
Issue: 3&4
Category: Agriculture
Pages: 253-255

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