The effect of different soil cultivation and fertilization on yield, quality and uptake of nutrients in sugar beet
1998
Kovac, K. (Vyskumny Ustav Rastlinnej Vyroby, Piestany (Slovak Republic))
In the field stationary trial on fertile, medium-heavy textured chernozem soils in maize-growing region the effect of soil cultivation (C1-conventional, C2-protective), fertilization or nutrition of sugar beet, resp. (B1-manure, B2-wheat straw + reduced NPK from fertilizers, B3-manure + NPK from fertilizers with medium intensity of fertilization) on its yield, technological quality and uptake of nutrients was studied. There was a significant dependence between the root yield and precipitation (June to August r=0.952, for the growing season r=0.996). In protective soil cultivation the tendency of higher root yield and production of polarizing sugar per 1 ha compared with conventional soil cultivation have been shown. Incorporation of wheat straw + reduced NPK fertilization from fertilizers compared only with manure manifested a trend of root yield decrease, increase in sugar content and refined sugar yield per 1 ha. The highest parameters of root production, polarizing sugar and refined sugar per 1 ha, sugar content and sugar beet yield were recorded in the variant where manure + NPK from fertilizers with medium intensity of fertilization were applied.
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