Yield and quality of soybean seeds depending on inoculation and fertilizing in the conditions of the Right Bank Forest Steppe

The defining condition for increasing soybean crops productivity is the development and implementation of technologies its cultivation, which most fully meet genetic characteristics variety take into account interaction plant organisms with combined effects hydrothermal conditions anthropogenic factors. Among criteria assessing effectiveness technological methods growing crops, one important their impact on yield quality marketable products. aim research to establish effect seed inoculation by a multifunctional microbial preparation based nitrogen-fixing phosphorus-mobilizing bacteria different doses terms mineral fertilizers application indicators seeds maturity groups in Right-Bank Forest-Steppe conditions. Field was conducted during 2013-2015 field SE "RF" Salivonkivske " Institute Bioenergy Crops Sugar Beets NAAS, Ukraine. soil experimental site typical low-humus medium loam chernozem. humus content layer 0-20 cm - 4.56%, 20-50 4.27%, pH salt extract 6.7-7.2. Content easily hydrolyzed nitrogen (according Cornfield) 155-161 mg/kg soil, mobile phosphorus Chyrikov) 44-54 exchangeable potassium 95-107 soil. establishment experiment involved study action three factors: A – variety: Vilshanka (early-ripening), Suzirya (medium-ripening); B pre-sowing treatment: without inoculation, Phosphonitragin; C fertilizers: (control); P60K60; N15P60K60; N30P60K60; N45P60K60; P60K60 + N15; N15P60K60 N30Р60К60 N15. Predecessor winter wheat. Soybean cultivation technology generally accepted Ukraine, except factors studied experiment. fertilizing system provided (granular superphosphate salt) at rate basic tillage, as well (ammonium nitrate) according scheme: budding phase. Inoculation performed complex bacterial soybeans strains nodule (Br.japonicum) microorganisms (B. mucilaginosus). Weather years differed significantly from each other relative long-term averages. In 2013, growth plants took place an average daily temperature range 19.1-19.8 ℃, amount precipitation 251.4-334.0 mm active temperatures (> 10, ℃) 2036.3-2258, 7 ℃. 2014, values these were, respectively, 18.6-19.5 308.7-337.2 2020.4-2216.7 ℃; 2015 21.1-21.6 135.3-166.5 2040.5-2324.4 ripeness groups. Methods (to object biotic abiotic factors), combine harvesting determine yield), biochemical crop; statistical probability results). It found that favourable maximum formation early-maturing medium-ripening both crude protein oil were created bacterization Phosphonitragin N30P60 . According indicators, reaction varieties techniques similar. Retail (for phase) contributed higher than single same fertilizers. Model intensive Suzirya, (Br. Japonicum) phosphate-mobilizing mucilaginosus) N30P60K60 base fertilizer highest yields 2.91 3.17 t/ha, more control 54.0 44.7%. variant, obtained precocious variety, 1.18 0.62 medium-ripe 1.32 0.63 t/ha.