Productivity of sugar beet at different tillage systems
Piotr Kuc
iaipr@upwr.edu.plKatedra Ogólnej Uprawy Roli i Roślin, Akademia Rolnicza we Wrocławiu (Poland)
Lesław Zimny
Katedra Ogólnej Uprawy Roli i Roślin, Akademia Rolnicza we Wrocławiu (Poland)
Abstract
The field experiment was conducted with applying split-plot method in four replications on medium textured soil. Two factors were examined: 1) stubble crop fertilization with or without ploughing down straw: 2) autumn-spring tillage system and manure fertilization. Autumn ploughing was performed in three plots, in plot 4 conservation tillage was done, and in plot 5 -spring ploughing. Manure fertilization in plots 1 and 2 was, respectively, 20 and 10 t/ha. Application of different tillage systems combined with two rates of manure fertilization and crop fertilization with or without ploughing down straw, as well as interactions of these factors, had no effect on biomass and biological sugar yield, leaf area ratio (LAR), assimilation area and a number of leaves per 1 dt of sugar. Leaf area index (LAI) was significantly determined by the first factor. A better effect of only stubble crop compared to stubble crop growing without ploughing down straw was observed. In the plots in which stubble crop had been left till spring the number of beet leaves needed to produce 1 dt of sugar was smaller than that in the plots in which traditional tillage was applied.
Keywords:
sugar beet, productivity, reduced tillage, organic fertilizationReferences
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Authors
Piotr Kuciaipr@upwr.edu.pl
Katedra Ogólnej Uprawy Roli i Roślin, Akademia Rolnicza we Wrocławiu Poland
Authors
Lesław ZimnyKatedra Ogólnej Uprawy Roli i Roślin, Akademia Rolnicza we Wrocławiu Poland
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