1. Antipova, L.K. (2020). Urozhajnist sina sortiv lyucerni zalezhno vid pogodnih umov ta ristregulyuyuchogo preparatu Emistim С [Hay yield of alfalfa varieties depending on weather conditions and regulatory growth drug Emistym С]. Visnik agrarnoyi nauki Prichornomor’ya [Herald of Agrarian Science of the Black Sea Region]. no. 1, pp. 43–49.
2. Bashkirova, N.V., Novak, T.V. (2005). Eksperimentalni zmini v sistemi rozmnozhennya lyucerni posivnoyi vid alogamiyi do avtogamiyi [Experimental changes in the alfalfa breeding system from allogamy to autogamy]. Visnik Ukrayinskogo tovaristva genetikiv i selekcioneriv [Bulletin of the Ukrainian Society of Geneticists and Breeders]. Vol. 3, no. 1–2, pp. 21–25.
4. Demidas, G.I., Kvitko, G.P., Tkachuk, O.P. (2013). Bagatorichni bobovi travi yak osnova prirodnoyi intensifikaciyi kormovirobnictva [Perennial legumes as a basis for natural intensification of fodder production]. Kyiv, TOV «Niland-LTD», 322 p.
5. Diter, Shpaar (2011). Lyucerna – koroleva kormovih kultur [Alfalfa is the queen of fodder crops]. Agroexpert, no. 4, pp. 52–56.
6. Dospehov, B.A. (1985). Metodika polevogo opyta [Methodology of field experience]. Moscow, Agropromizdat, 350 p.
7. Yermakova, L., Ivanivska, R. (2008). Lyucerna – vash vdalij vibir [Alfalfa is your good choice]. Propoziciya – golovnij zhurnal z pitan agrobiznesu [The offer is the main magazine on agribusiness issues]. Available at:
https://propozitsiya.com/ua/lyucerna-vash-vdaliy-vibir
8. Zinchenko, O.I., Salatenko, V.N., Bilonozhko, M.A. (2001). Lyucerna. Roslinnictvo: pidruchnik [Alfalfa. Plant growing]. Kyiv, Agrarian science, 591 p.
9. Babich, A.O. (1998). Metodika provedennya doslidiv z kormovirobnictva [Methods of conducting experiments on fodder production]. Vinnitsa, 96 p.
10. Sbev, V. Pachev, I. (2008). Ekonomicheskaya ocenka vneseniya mineralnogo udobreniya i obrabotki pochvy dlya lyucerny na korm [Economic assessment of mineral fertilizer application and soil treatment for alfalfa forage]. Visnik Harkivskogo nacionalnogo agrarnogo universitetu imeni V.V. Dokuchayeva. Gruntoznavstvo, agrohimiya, zemlerobstvo, lisove gospodarstvo [Bulletin of Kharkiv National Agrarian University named after V.V. Dokuchaev. Soil science, agrochemistry, agriculture, forestry]. Kharkiv, no. 2, pp. 193–200.
12. Shevel, I.V. (2003). Vpliv dobriv na produktivnist i deyaki pokazniki yakosti lyucerni pri viroshuvanni yiyi na zroshuvanomu chornozemi pivdennomu [The influence of fertilizers on the productivity and some indicators of the quality of alfalfa when growing it on irrigated chernozem in the south]. Tavrijskij naukovij visnik [Taurian Scientific Bulletin]. Kherson, NNVK, no. 25, pp. 65–69.
13. Berg, W.K., Cunningham, S.M., Brouder, S.M., Joern, B.C., Johnson, K.D., Santini, J.B., Volenec, J.J. (2007). The long-term impact of phosphorus and potassium fertilization on alfalfa yield and yield components. Crop Sci. no. 47, pp. 2198–2209. DOI: 10.2135/ cropsci2006.09.0576
14. Berg, W.K., Cunningham, S.M., Brouder, S.M., Joern, B.C., Johnson, K.D., Volenec, J.J. (2005). Influence of phosphorus and potassium fertilization on alfalfa yield and yield components. Crop Sci. no. 45, pp. 297–304. DOI: 10.2135/cropsci2005.0297
15. Flynn, R. (2015). Interpreting Soil Tests: Unlock the Secrets of Your Soil; New Mexico State University Cooperative Extension: Las Cruces, NM, USA. 676 p. 16. Grewal, H.S., Williams, R. (2002). Influence of potassium fertilization on leaf to stem ratio, nodulation, herbage yield, leaf drop, and common leaf spot disease of alfalfa. J. Plant Nutr. no. 25, pp. 781–795. DOI: 10.1081/PLN-120002959
17. Hawkesford, M., Horst, W., Kichey, T., Lambers, H., Schjoerring, H.J., Moller, I.S., White, S. (2012). Functions of macronutrients. Marschner’s Mineral Nutrition of Higher Plants. Academic Press: Waltham, MA. USA, pp. 135–189. DOI: 10.1016/ B978-0-12-384905-2.00006-6
18. Jungers, J.M., Kaiser, D.E., Lamb, J.F.S., Lamb, J.A., Noland, R.L., Samac, D.A., Wells, M.S., Sheaffer, C.C. (2019). Potassium fertilization affects alfalfa forage yield, nutritive value, root traits, and persistence. Agron. J. no. 111, pp. 2843–2852. DOI: 10.2134/agronj2019.01.0011
19. Lloveras, J., Chocarro, C., Torres, L., Viladrich, D., Costafreda, R., Santiveri, F. (2012). Alfalfa yield components and soil potassium depletion as affected by potassium fertilization. Agron. J. no. 104, pp. 729–734. DOI: 10.2134/agronj2011.0293
20. Macolino, S., Lauriault, L.M., Rimi, F., Ziliotto, U. (2013). Phosphorus and Potassium Fertilizer Effects on Alfalfa and Soil in a Non-Limited Soil. Agron. J. no. 105, pp. 1613–1618. DOI: 10.2134/ agronj2013.0054].
21. Murali, K. Darapuneni, Leonard, M. Lauriault, Gasper, K. Martinez, Koffi, Djaman, Kevin, A. Lombard, Syam, K. Dodla. Potassium and Sulfur Fertilizer Sources Influence Alfalfa Yield and Nutritive Value and Residual Soil Characteristics in an Arid, Moderately Low-Potassium Soil. DOI: 10.3390/agronomy14010117
22. Pant, H.K., Mislevy, P., Rechcigl, J.E. (2004). Effect of phosphorous and potassium on forage nutritive value and quantity. Agron. J. no. 96, pp. 1299– 1305. DOI: 10.2134/agronj2004.1299
23. Petrychenko, V.F., Hetman, N.Ya., Veklenko, Yu.A. (2020). Substantiation of alfalfa productivity at long-term use of grass stands in conditions of climate change. Herald of Agrarian Science. no. 3 (804), pp. 20–26. DOI: 10.31073/agrovisnyk202003-03
24. Schneider A., Villemin P. (1992). Importance of texture and CEC in K fertilization advice. In Proceedings of the 23rd Colloquium of the International Potash Institute. Prague, Czechoslovakia, pp. 395–398.
25. Teixeira, E.I., Moot, D.J., Mickelbart, M.V. (2007). Seasonal patterns of root C and N reserves of lucerne crops (Medicago sativa L.) grown in a temperate climate were affected by defoliation regime. Eur. Agron. J. no. 26, pp. 10–20. DOI: 10.1016/j. eja.2006.08.010.
26. Wang, M., Zheng, Q., Shen, Q., Guo, S. (2013). The critical role of potassium in plant stress response. Int. J. Mol. Sci. no. 14, pp. 7370–7390. DOI: 10.3390/ijms14047370