Planting density impact on weed infestation and the yield of Miscanthus grown on two soil types
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The assessment of the weed infestation effect on biomass yield of Miscanthus x giganteus in the first year of its commercial yield was conducted on two types of soil with different productive ability Luvic Chernozem and Calcic Gleysol. The formed mass of weeds was higher on Luvic Chernozem and the infestation had grown according to the stages of Miscanthus growth. The biomass of weeds depended on the planting density of Miscanthus as well as on the weather conditions during the studied years. Weed infestation of crops very significantly influenced the formation of aboveground biomass of Miscanthus, so that the yields in the first year of commercial harvesting in the control where the weeds were removed manually were significantly higher compared to the crops in which weeds were not removed. The obtained results showed that weeds significantly affect the initial growth and development of Miscanthus plants that are, in general, slow, especially in the year of the crop establishment. The ...study evaluates the impact of a manual method of suppression and weed infestation of crops on the commercial yield of Miscanthus.
Keywords:Miscanthus / C4 perennial grass / energy crop / biofuels / weed control
Source:Plant Soil and Environment, 2016, 62, 8, 384-388
- Czech Academy Agricultural Sciences, Prague