Effect of magnesium foliar application on the yield and quality of sugar beet roots
2001
Barlog, P. | Grzebisz, W. (Agricultural Univ., Poznan (Poland). Dept of Agricultural Chemistry)
The aim of the study conducted in 1996-1998 was to assess the effect of foliar application of magnesium on the yield and quality of sugar beet roots. In the three consecutive growing seasons (1996-1998), eleven field trials were set up on very fertile sandy loam soils in the Wielkopolska region (Central-Western part of Poland). On average, the application of 0.5 kg Mg.ha-1 increased the yield of roots by 9.9 %, i.e. from 67.37 t/ha in the control (without magnesium foliar application) to 74.06 t/ha. The yield of white sugar increased by 9.5 %, i.e. from 9.18 t/ha in the control to 10.06 t/ha. Further significant root and sugar yield increase was due to the double magnesium application, the yield increase was 12.6 and 11.1 %, respectively. Technological parameters of sugar beet roots were not significantly affected by the treatments, but a tendency to increase the content of molasses forming substances (K, Na, alpha-amino nitrogen) was found. It could be concluded that the increase in sugar yield resulted from the increased yield of fresh root.
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