VIGOVSKIS, Janis; JERMUSS, Aivars; SVARTA, Agrita; SARKANBARDE, Daina. The Changes of Nutrient Content in Soil in Long-term Fertilizer Experiments. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 2, p. 329–332, 2015. DOI: 10.17770/etr2015vol2.624. Disponível em: https://journals.rta.lv/index.php/ETR/article/view/624.. Acesso em: 21 dec. 2024.