1. Adyaev S.B., Dedova E.B., Sazanov M.A., Nidzhlyaeva I.A. 2007. Recommendations for the cultivation of accompanying crops of rice-based crop rotations in the Sarpinskaya lowland. O.V. Demkina (ed), Elista, pp. 20;
2. Alborova P.V., Kosyrev A.Kh., Sabanova A.A. 2012. The use of yellow melilot as an early precursor for winter crops and catch crops. News of the Gorsky State Agrarian University, 49(4):71-76;
3. Alford D.V. 2008. Biocontrol of Oilseed Rape Pests. Wiley. ISBN 9781405171564;
4. Ali R.I., Awan T.H., Ahmad M., Saleem M.U., Akhtar M. 2012. Diversification of rice-based cropping systems to improve soil fertility, sustainable productivity and economics. The Journal of Animal & Plant Sciences, 22(1):108-112;
5. Ayers R.S., Westcot D.W. 1985. Water Quality for Agriculture. FAO Irrigation and Drainage Paper 29 Rev. 1. Rome, Italy: Food and Agriculture Organization of the United Nations;