Agriculture and forestry

Hetman Nadiia Yakivna –  Doctor of Agricultural Sciences of the Vinnytsia National Agrarian University, Associate Professor at the Department of Plant Production, Crop Breeding and Bioenergy Crops (21008, Vinnytsia, Soniachna St.3, e-mail: nadia.getman52@gmail.com).

In the soil and climatic conditions of the Right Bank Forest-Steppe, regardless of the action of abiotic and biotic factors during the growing season, high adaptability of alfalfa was established for different geographical origins, namely the natural zone of the Forest-Steppe, Polissya, Steppe Ukraine and Serbia. It was found that under the weather conditions of 2016 year alfalfa varieties reacted differently to changes in temperature and moisture during the growing season. It is important to note the effectiveness of phosphorus-potassium fertilizers applied directly to alfalfa coverless method of sowing. In the year of sowing, alfalfa formed a powerful herbage and provided two slopes with a yield of green mass at the level of 20,13-29,80 t/ha with a dry matter yield of 4,80-6,69 t/ha. For the second year of vegetation, alfalfa was carried out according to the regimes, which considered the phases of growth and development (budding, beginning of flowering and flowering). In the first mode of cutting management (all slopes in the budding phase) it is advisable to identify three varieties of Unitro, Nasoloda and Rosana, which provided a gross dry matter of 10,41-10,48 and 2,29-2,31 t/ha of crude protein. The productivity of alfalfa increased with late term cutting - at the beginning of flowering and a combination of slopes (3rd mode). The dry matter yield was 11,40-12,62 and 2,35-2,51 t/ha of crude protein (second regime) and the indicators increased under the third regime, especially dry matter 13,58-15,80 t/ha and decreased to 2,37-2,41 t/ha of crude protein. The increase in dry matter of the second mode increased by 9,5-23,1% and crude protein by 2,6-20,5%, and in the third mode of use of alfalfa it was 2,3-11,2%, compared to the mode of mowing the grass in the budding phase. During the third year of vegetation under favorable agroecological conditions for growth and development of alfalfa plants, the studied varieties provided four slopes regardless of the mode of use of grass with a dry matter yield of 15,43-20,58 and 3,21-4,02 t/ha of crude protein. During the second and third years of vegetation from the studied modes of use of alfalfa grass for fodder purposes, the highest yield of crude protein 5,27-6,53 t/ha varieties provided for the alienation of crops at the beginning of the flowering phase, which was on average 6,0-7,1% higher than when mowing all slopes in the budding phase and a combination of slopes in the phases of growth and development (3rd mode). Thus, in the conditions of the Forest-Steppe of the right bank on gray forest soils alfalfa, regardless of geographical origin, adapted to growing conditions and provided stable productivity indicators regardless of the regime of grass use with observance of elements of cultivation technology.

1.Blagoveshchenskiy G.V. Shtyrkhunov V.D. Konanchuk V.V. (2016). Energo-proteinovyy potentsial trav i furazhnykh kultur. [Energy-protein potential of grasses and forage crops]. Kormoproizvodstvo– Feed production. № 2. 21-23. [in Ukrainian]

2.Goloborodko S.P. Lazarev N.N. (2009). Lyutserna [Alfalfa]. M.: Izd-vo RGAU-MSKhA.  42-52. [in Ukrainian].

3.Dospekhov B.A. (1985). Metodika polevogo opyta. [Field experiment technique]. M .: Kolos. 351 s. [in Russian].

4.Lazarev N.N. Avdeyev S.M. Demina L.Yu. Yatskova V.G. (2011). Izmeneniye agrokhimicheskikh svoystv dernovo-podzolistoy pochvy i urozhaynosti bobovykh i bobovo-zlakovykh travostoyev pri ikh dolgoletnem ispolzovanii. [Changes in the agrochemical properties of sod-podzolic soil and the yield of legumes and legumes-cereal herbage during their long-term use].  Izvestiya TSKhA. Issue. 1.  11-15. [in Russian]. 

5.Lazarev N.N. Belov E.A. (2011).Uskorennoye sozdaniye travostoyev lyutserny izmenchivoy i kozlyatnika vostochnogo [Accelerated creation of grass stands for alfalfa and eastern goat's rue]. Kormoproizvodstvo – Feed production. № 5.  10-12. [in Russian].

6.Lazarev N.N. Isakov A.N. Starodubtseva A.M. (2015). Lugovyye travy v Nechernozemye: urozhaynost. dolgoletiye. pitatelnost. [Meadow grasses in the Non-Black Earth Region: productivity, longevity, nutritional value]. M.: Izd-vo RGAU-MSKhA imeni.K.A. Timiryazeva. [in Russian].

7.Lazarev N.N. Pyatinskiy D.V. (2016). Produktivnoye dolgoletiye novykh sortov lyutserny (Medicago sativa L.) pri intensivnom skashivanii [Productive longevity of new varieties of alfalfa (Medicago sativa L.) with intensive mowing]. Izvestiya TSKHA. Issue. 3. 39-52. [in Russian].

8.Kharkov G.D. (1989). Lyutserna [Alfalfa]. M.: Agropromizdat.  [in Russian].

9.Shamsutdinov Z.Sh., Piskovatskiy Yu.M., Novoselov M.Yu., Tyurin Yu.S. i dr. (2007). Rezultaty i prioritety v selektsii kormovykh rasteniy [Results and priorities in the selection of forage plants]. problemy i puti resheniya: Kormoproizvodstvo  –  Feed production Sb. nauch. tr. M.: FGNU «Rosinformagrotekh».  241-257. [in Russian].

10.Luis De I., Irigoyen J.J., Sanchez-Diaz M. (1999). Elevated CO2 enhances plant growth in droughted N2-fixing alfalfa without improving water stress. Physiologia Plantarum. Vol. 107. P. 84-89. [in English].

11.Bullard M.J., Crawford T.J. (1995). Productivity of Lotus corniculatus L. (birds-foot trefoil) in the UK when grown under low-input conditions as spaced plants, monoculture swards or mixed swards. Grass and Forage Science. V. 50. Is. 4. P. 439-446. [in English].

12.Canevari W.M. (2000). Overseeding and companion cropping in alfalfa. University of California. Division of Agrisulture. 31 r. [in English].

13.Volenec J.J., Cherney J.H, Johnson K.D. (1987). Yield components, plant morphology, and forage quality of alfalfa as infl uenced by plant population. Crop Sci. Vol. 27. P. 321-326. [in English].

14.Ignatyev S.A. Gryazeva T.V. Ignatyeva N.G. (2016). Urozhaynost ryzlichnykh sortov lyutserny na yuge Rostovskoy oblasti [Productivity of various varieties of alfalfa in the south of the Rostov region]. Zernovoye khozyaystvo Rossii – Grain farming in Russia. № 48 (6).19-23. [in Russian].

15.Hetman N.Ia., Veklenko Yu.A., Tkachuk R.O.(2017). Formuvannia ekolohichno stiikykh ahrofitotsenoziv liutserny posivnoi zalezhno vid umov vyroshchuvannia [Formation of ecologically stable agrophytocenoses of alfalfa sowing depending on growing conditions].  Kormy i kormovyrobnytstvo − Feed and feed production. Vinnytsia: TOV «Vydavnytstvo-drukarnia Dilo». Issue. 84.  70-75. [in Ukrainian].