Agriculture and forestry

Mazur Oleksandr Vasyliovych – Candidate of Agricultural Sciences, Associate Professor of the Department of Plant Production, Selection and Bioenergetic Cultures, Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna Str., 3 е-mail: selection@vsau.vin.ua).

Polishchuk Mihaylo Ivanovych − сandidate of Agricultural Sciences, Associate Professor, the chief of Agriculture, Soil Science and Agrochemistry chair of Vinnytsia National Agrarian University (21008, Vinnytsya, 3, Soniachna, e-mail: polishchuk.mikhaylo@ukr.net).

Tynko Valentyna Vasylivna - graduate student of the Department of Agriculture, Soil Science and Agrochemistry of Vinnytsia National Agrarian University (21008, Vinnytsia, 3 Sonyachna Street, e-mail: 22valya.tinko@ukr.net)

During the research period, the impact of fertilizers and foliar fertilization on the indicators of germination and preservation of spring barley plants was assessed. The obtained research results indicate the dependence of these indicators on mineral fertilizers and foliar fertilization. As mineral fertilizers promote seed germination and intensify the processes of growth and development of spring barley plants, improve the development of the root system, moisture absorption, as well as the efficiency of assimilation of macro- and micronutrients. Conducting foliar fertilization can improve the supply of mineral nutrients in critical periods of growth and development, which has a positive effect on the bookmark and formation of generative organs, plant resistance to disease, stress resistance of plants at high temperatures, drought, increases photosynthetic activity and increases and the quality of the grain harvest. Field germination was influenced by soil temperature and humidity during seed germination and fertilization system. The highest field similarity in the varieties Aizhan (84.1%) and Aristei (83.3%) was observed in the variants of the experiment, where mineral fertilizers were applied at a dose of N30P30K30, which is 1.2% more, r\espectively. The density of plants in the phase of full germination, depending on the variety, varied in the range of 328.4-336.8 pieces / m2 and differed insignificantly according to the variants of the experiment. Preservation of spring barley plants, depending on the study option, varied from 77.4 to 81.7%.In the variant of studies for the application of mineral fertilizer at a dose of N30P30K30, the preservation of plants was in the variety Aizhan - 79.8% and in the variety Aristei - 79.0%, which is higher than the control by 1.9 and 1.6% or 10.1 and 9.2 pcs / month. With the joint application of mineral fertilizer at a dose of N30P30K30 and foliar fertilization of plants with the biological product Yara Vita in the phase of emergence of plants in the tube and in the phase of earing in varieties Aijan and Aristei plant survival was 81.4 and 81.5%; 81.3 and 81.3%, which is higher than the control by 3.5 and 3.6% and 3.9 and 3.9%. With the joint application of mineral fertilizer at a dose of N30P30K30 and foliar feeding of plants with microfertilizer Vuxal in the phase of plant emergence in the tube and in the phase of earing in varieties Aijan and Aristei plant survival was 81.6 and 81.7%; 81.4 and 81.5%, which is higher than the control by 3.7 and 3.8 and 4.0 and 4.1% or 16.2 and 16.7 and 17.1 and 17.5 units / м².

1.Ly`xochvor V.V. (2002) Rosly`nny`cztvo. Texnologiyi vy`roshhuvannya sil`s`kogospodars`ky`x kul`tur [Technologies for growing crops]. L`viv: NVF «Ukrayins`ki texnologiyi». [In Ukrainian]. 

2.Kalens`ka S.M., Suddenko V.Yu. (2016). Pol`ova sxozhist` ta vy`zhy`vanist` rosly`n psheny`ci m 'yakoyi yaroyi zalezhno vid elementiv texnologiyi vy`roshhuvannya u Pravoberezhnomu Lisostepu Ukrayiny` [Field germination and survival of soft wheat plants depending on the elements of cultivation technology in the Right-Bank Forest-Steppe of Ukraine]. Naukovi dopovidi Nacional`nogo universy`tetu bioresursiv i pry`rodokory`stuvannya Ukrayiny` − Scientific reports of the National University of Life and Environmental Sciences of Ukraine. № 2. URL:http: //journals.nubip.edu.ua/index.php/Dopovidi/article/view/6490/6374 [In Ukrainian].

3.Kolisny`k O.M. (2020). Vply`v texnologichny`x pry`jomiv vy`roshhuvannya na rist i rozvy`tok yachmenyu yarogo v umovax Lisostepu Pravoberezhnogo [Influence of technological methods of cultivation on growth and development of spring barley in the conditions of the Forest-Steppe of the Right Bank]. Sil`s`ke gospodarstvo ta lisivny`cztvo − Agriculture and forestry.  № 16. 89-107. [In Ukrainian].

4.Pelex L.V. (2019). Ocinka gerbologichnoyi sy`tuaciyi agrofitocenozu yachmenyu yarogo za rizny`x poperedny`kiv v umovax doslidnogo polya VNAU [Assessment of the herbological situation of agrophytocenosis of spring barley under different predecessors in the experimental field of VNAU]. Sil`s`ke gospodarstvo ta lisivny`cztvo − Agriculture and forestry.  № 4.   172-183. [In Ukrainian].

5.Petrychenko V.F., Lyxochvor V.V. (2014). Rosly`nny`cztvo. Texnologiyi vy`roshhuvannya sil`s`kogospodars`ky`x kul`tur [Crop production. Technologies for growing crops]: navch. posibn. -4-e vy`d., vy`prav., dopov. L`viv: NVF «Ukrayins`ki texnologiyi». [In Ukrainian].

6.Metody`ka Derzhavnogo sortovy`probuvannya sil`s`kogospodars`ky`x kul`tur (2001). (zernovi, krup'yani ta zernobobovi kul`tury`) [Methods of State variety testing of agricultural crops (cereals, cereals and legumes)] / za red. V. V. Volkodava. Ky`yiv. [In Ukrainian].

7.Baby`ch A.O. (1994). Metody`ka provedennya doslidiv po kormovy`robny`cztvu [Methods of experiments in feed production] / za red. A.O. Baby`cha. Vinny`cya. [In Ukrainian].

8.Laman N.A., Yanushkevy`ch B.N., Xmurecz K.Y`. (1987). Potency`al produkty`vnosty` xlebnux zlakov: Texnology`chesky`e aspektu realy`zacy`y` [Productivity potential of cereals: Technological aspects of implementation] My`nsk: Nauka y` texny`ka. 20 -37.