Vigovskis, Jānis, Aivars Jermušs, and Agrita Švarta. 2007. “INFLUENCE OF FERTILIZERS AND LIMING ON THE AGROCHEMICAL PARAMETERS OF SOIL AND LOSSES OF PLANT NUTRIENTS THROUGH DRAIN WATER”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June): 150-56. https://doi.org/10.17770/etr2007vol1.1745.