Analysis of the dependence of winter wheat yielding capacity formation on mineral nutrition in irrigation conditions of southern steppe of Ukraine

This article is dedicated to the research of analysis of the dependence of growth and development of winter wheat varieties Khersonska Awnless and Odeska 267 on conditions of moisture provision and mineral nutrition status, impact of indicated factors and formation of yielding capacity and grain quality. Years of research significantly varied in rainfall amount during growing season. According to moisture supply, 2016 was dry, 2017 was average humid and 2018 was subhumid, which had an impact on grain yield equation. The lowest winter wheat productivity level was formed in 2016. Under supplemental watering without fertilizers the yield of the Khersonska Awnless variety was at the level 2.07 t/ha, and of Odeska 267 variety - 1.51 t/ha. Under provision of vegetative watering, the yielding capacity increased to 3.14 and 2.94 t/ha. Fertilizers also had significant impact on production processes of plants, accumulation of over ground biomass, area of assimilating surface that resulted in the yield increase of winter wheat. On average, over the years of research the most significant influence among considered factors had fertilizers - 43%, irrigation - 32% and variety content of winter wheat - 9%

The influence of technology elements on the production of bioethanol from sugar sorghum

The search for promising raw materials for the production of bioethanol is an urgent task of the present. An effective sugar crop for bioethanol production is sugar sorghum, which per hectare of crops provides 90-100 t / ha of biomass with sugar content of 18-20%. The article presents the results of the influence of mineral nutrition on the productivity and yield of bioethanol from sugar sorghum plants in the zone of the Western Forest-steppe of Ukraine. Investigation of the elements of the technology of cultivating sugar sorghum for the production of biofuels was conducted with the Sugar 1 variety and the Hybrid Honey F1 in three grades of nutrient backgrounds - no fertilizers, N90P90K90 and N120P120K120 using herbicide 2,4-D. For the introduction of sorghum herbicide 2,4-D in the steps of 1.5 l / ha in the phase of 3-4 leaves, there was a good increase in plant height and diameter of the stems. The increase in the yield of green mass of sorghum compared to non-fertilized control at the rate of N90P90K90 introduction into the Sugar 1 variety was 6.1 tons / ha, and the Hybrid Honey F1 was 6.5 tons / ha; for the norm N120P120K120 - respectively 7.9 and 8.6 t / ha. The yield of bioethanol by sorts of sorghum on the background of the introduction of N90P90K90 was respectively 2.18 and 2.27 t / ha, solid fuels - respectively 11.9 and 12.4 t / ha, bioenergy - respectively 243 and 254 GJ; on the background of the introduction of N120P120K120 and the application of 2,4-D herbicide, the bioethanol yield was 2.25 and 2.32 t / ha respectively, solid fuels - respectively 12.3 and 12.6 t / ha, bioenergy - respectively 252 and 259 GJ

Analysis of the dependence of winter wheat yielding capacity formation on mineral nutrition in irrigation conditions of southern steppe of Ukraine

This article is dedicated to the research of analysis of the dependence of growth and development of winter wheat varieties Khersonska Awnless and Odeska 267 on conditions of moisture provision and mineral nutrition status, impact of indicated factors and formation of yielding capacity and grain quality. Years of research significantly varied in rainfall amount during growing season. According to moisture supply, 2016 was dry, 2017 was average humid and 2018 was subhumid, which had an impact on grain yield equation. The lowest winter wheat productivity level was formed in 2016. Under supplemental watering without fertilizers the yield of the Khersonska Awnless variety was at the level 2.07 t/ha, and of Odeska 267 variety - 1.51 t/ha. Under provision of vegetative watering, the yielding capacity increased to 3.14 and 2.94 t/ha. Fertilizers also had significant impact on production processes of plants, accumulation of over ground biomass, area of assimilating surface that resulted in the yield increase of winter wheat. On average, over the years of research the most significant influence among considered factors had fertilizers - 43%, irrigation - 32% and variety content of winter wheat - 9%