Techninio lignino panaudojimas žolės dangai formuoti

Abstract

Evaluating the use of technical lignin for the formation of grass cover three kinds of plant seeds, technical lignin, waste of wood industry and polymers made in the Latvia National Wood Chemical Institute were used. A laboratory experiment was made in June 2003 in the Public Seeds and Grain Klaipėda Municipality subdivision laboratories where seed viability and germination energy were set. A field experiment was made in July 2004 in the Botanical Garden of Klaipėda University. Two months after sowing grass cover formation on the slope was evaluated. In a laboratory research the influence of modified lignin by polymer upon seed germination was identified. Having researched the material I can state that polymers do not harm plants, it is important to choose right concentrations. Having big polymer concentrations most of the seeds did not sprout. The results showed that liquid concentrations of polymers 50 g/l and LSTM1 + promoter 100 + 10 g/l were most appropriate for seed germination of Thymus vulgaris, Gypsophila paniculata and Festuca rubra. For the field research the mentioned polymers and their concentrations were chosen. Solid enough grass cover on the hillside was formed having planted the seeds of Festuca rubra mix. The thickest coat was in the soil of the hillside covered with technical lignin (80%); however, Festuca rubra rooted without it well enough (70%) too. The received results showed that covering the soil with polymers decreased percentage of hillside coverage. Gypsophila paniculata mainly grew in the soil not covered by technical lignin having used polymer LSTM2. Only a few plants of Thymus vulgaris were found on the hillside covered by technical lignin. While performing the research it became clear that Festuca rubra seeds are the most appropriate ones in the technology of anti - erosion sand or other easily weather - beaten soils.