1. Zavalin, A.A., The use of biologics in the cultivation of field crops, Dostizh. Nauki Tekhn. APK, 2011, no. 8, pp. 9–11.
2. Novikova, N.E., Physiological substantiation of foliar fertilization for optimizing the nutrition of grain legumes in plant ontogeny (review), Zernobobovye Krupyanye Kul’t., 2018, vol. 1, no. 25, pp. 60–67.
3. Otieno, P.E., Muthomi, J.W., Chemining`wa, G.N., and Nderitu, J.H., Effect of rhizobia inoculation, farm yard manure and nitrogen fertilizer on nodulation and yield of food grain legumes, J. Biol. Sci., 2009, vol. 9, pp. 326–332. https://doi.org/10.3923/jbs.2009.326.332
4. Dozorov, A.V., The role of symbiotic nitrogen in solving the protein problem, Mezhdunar. S.-kh. Zh., 2000, no. 2, pp. 58–59.
5. Alves, B.J.R., Boddey, R.M., and Urqiaga, S., The success of BNP in soybean in Brazil, Plant Soil, 2003, no. 252, pp. 1–9.