Published in Scientific Papers. Series A. Agronomy, Vol. LXVII, Issue 1
Written by Diana PETRE, Ioan GHERMAN, Manuela HERMEZIU, Nina BĂRĂSCU
The waste precipitate from sugar technology contains CaCO3 and aggregated or adsorbed non-sugars. This work is an attempt to investigate the possibility of using sugar beet waste-carbonation lime residue (sludge) as an amendment to correct the pH of acid soils, embracing and implementing the concept of circular energy crop. Research were carried out during three agricultural years (2020-2022), in the experimental field of the National Institute of Research and Development for Potato and Sugar Beet Brașov, Romania. A total number of 96 experimental sugar beet plots were analyzed, divided into six variants (variables), V1 - control, V2 - CaCO3 (classic), V3-V6 different amounts of carbonation lime sludge (Factor A), using two methods of incorporating amendments into the soil and different amounts of fertilizers (4 experiments) (Factor B). The use of defecation lime had an impact on soil pH, yield production (very significant differences compared to the control), sugar production (very significant differences compared to the control), and less on sugar biological concentration (significant differences compared to the control). For evaluating the results, analysis of variance (ANOVA) and Duncan multiple range test were used.
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