Biological Systems: Theory and Innovation

Emphasis is placed on the efficiency of production of alternative types of biofuels by rational selection of species and the intensity of biomass formation of plants of the appropriate chemical composition. It is determined that favorable natural and climatic conditions of the South of Ukraine, the presence of built rice irrigation systems make it possible to obtain high yields of high-quality rice grain, while forming significant amounts of by-products in the form of straw, husk, flour, which are a source of solid biofuel. Purpose. To investigate the by-products of rice as a source of bioenergy plant raw materials for alternative energy production as a solid biofuel. Materials and methods. To establish the impact of the main agronomic measures of growing modern rice varieties in the South of Ukraine on the quality of grain and raw materials for biofuels, field experiments were conducted in the fields of the Rice Institute of NAAS. Results. Es ma on of bioenergetic potential of rice varieties showed that the highest values of energy yield under the use of by-products (straw and husk) are characterized by Vicount and Premium varieties, which studied to determine the impact of agronomic factors on the forma on of rice productivity for final consumption and use of straw and husk. as a source of bioenergy vegetable raw materials as a solid biofuel. To assess the impact of agronomic factors on the technology of rice production, an economic assessment was conducted, which is the result of field research and the initial stage of implementation of these results in production. Profit from the sale of cereals and by-products ranged from 0.32 to 7.9 thousand UAH per unit area for growing the Viscount variety and from 0.60 to 3.81 thousand UAH for Premium. Conclusions. The highest yields of rice grain were formed with the application of mineral fertilizers at a dose of N180P60K0 at sowing rates of 9 million similar seeds per hectare for rice varieties Vicount and Premium at the level of 9 and 8 t / ha, respectively. Thus, the optimal combination of agronomic measures of rice cultivation allows to obtain high yields of the crop, at the same time, significant volumes of by-products are formed, suitable for further use

rice; biofuel; by – products; biomass; bioenergy