ZESZYT Nr 30/ 2017 Abstrakty Volume No. 30/2017 Abstracts |
2. Biochar from residual biomass in Turkey, and possibility of return to the soil: an estimation of the supply and demand – Ozben Kutlu, Gunnur Kocar Abstract. The
aim of the study was to analyse the potential of production and
utilization of biochar as a marketable product in agriculture for
Turkey. Towards this aim, the distribution of arable land, crop
residues and soil types of Turkey were identified. The biochar
production potential was evaluated depending on prominent residual
biomass streams in Turkey. In addition, how much biochar would be
needed for arable soil types found in Turkey was estimated according to
previous studies which investigated the effect of biochar on similar
soil taxonomy and/or plant grown. Total crop production is focused on
southern, western and central Anatolia, although the arable lands of
Turkey prevail in seven regions. The residues of wheat, barley, corn
and cotton stalk, tea, banana, hazelnuts and forest were found to be
higher than other residuals in different regions and they could be
suitable for biochar production. Furthermore, it was highlighted that
the low water holding capacity of soil, alkalinity, salinity and soil
pollution impeded the crop productivity. Although, the biochar produced
from prominent residues was one-fiftieth less than that of total
estimated amount of biochar needed for arable soils, it obviously
improves the plant growth and soil characteristics, when used together
with fertilizer, especially for zonal and intrazonal soils. At this
point, it could be focused on the long-term field experiments due to
determine the special and productive addition rate of biochar for
Turkey, and biochar addition to the soil could be channelled into
threatened priority arable lands by the public authorities. keywords: biochar, torrefaction, slow pyrolysis, soil amendment, soil taxonomy of Turkey, agriculture, crop residues |