Influence of rhizome mass on the crop establishment and dry matter yield of Miscanthus×giganteus over ten seasons

Abstract

The aim of the present investigation was to assess the influence of rhizome mass on the success of plantation establishment and biomass yield of the bioenergy crop M. × giganteus during 10 years of cultivation. The experiment included three treatments with different rhizome masses: 10-20 g (very low); 25-35 g (low), and 40-60 g (medium mass). Planting density was 2 rhizomes m-2. The plants were harvested by mowing of the whole above-ground biomass each year in February. Out of the total number of planted rhizomes, the lowest emergence was noticed in very low mass rhizomes. In the first season, the greatest number of stems and crop height were encountered under the treatment with the highest rhizome mass. In the second season, crop heights were almost equal in all treatments. During the first two seasons, the highest biomass yields were recorded under the treatments with the highest rhizome masses. Although the analyzed parameters were highest with the rhizomes of 40-60g during the crop establishing stage, starting from the third season of cultivation, high yields of above-ground biomass may be obtained also with lower mass rhizomes. Having the highest biomass yield (25.85±7.36 Mg DM ha-1), the crop established with rhizomes of 25-35 g clearly stood out.

Review of Current Prospects for Using Miscanthus-Based Polymers

“…Thus, Miscanthus cultivation allows the sequestration of a significant quantity of soil carbon. It has been discovered that Miscanthus cultivation can be carbon-negative (i.e., the accumulation of more carbon aboveground and underground than is emitted into the atmosphere) under certain conditions [ 4 , 5 , 6 ]. This can be particularly relevant to marginal lands where soils are low in carbon, and, hence, the carbon sequestration probability is high.…”

“…The most essential advantage of using biomass in production processes is its environmental friendliness. Biomass binds carbon dioxide and secures a negative carbon balance as it grows, and the carbon neutrality criteria is achieved when biomass is technologically processed, which is critically important today given the climate crisis [ 4 , 5 , 6 ].…”