Vigovskis J, Jermuss A, Svarta A, Sarkanbarde D. The Changes of Nutrient Content in Soil in Long-term Fertilizer Experiments. ETR [Internet]. 2015 Jun. 17 [cited 2024 Dec. 22];2:329-32. Available from: https://journals23.rta.lv/index.php/ETR/article/view/624