The possibilities of affecting the yield and quality of sugar beet by non-root nutrition
2009
Hrivna, L.,Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Ustav Technologie Potravin | Cerkal, R.,Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Ustav Technologie Potravin
The effect of selected fertilizers designed for non-root nutrition of sugar beet was evaluated in experiments conducted during the years 2003-2004. The results showed that the effect of the leaf nutrition depended on weather conditions. The time of application was the key factor directly influencing the yield in 2003 when less precipitation occurred. A positive effect was achieved only after the first application of the leaf fertilizer (prior the beginning of crop cover) when an increase in the bulb yield by 12-18% was attained. In 2004, all variants with the leaf application of fertilizers provided a higher bulb yield (by 8-14%). However, the higher bulb yield went hand in hand with a slightly lower digestibility. The polarization sugar yield per hectare was not considerably affected. The content of molasses-creating substances slightly increased in most variants with foliar application of fertilizers. Additionally, the content of molasses-creating substances corresponded with the bulb yield increase in most cases. It was confirmed that a balanced nutrition is the key factor for plants as it reduces the effects of abiotic stresses, mainly drought.
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