Surikova, Valentīna, and Aldis Kārkliņš. “Phosphorus Removal With Grass In An Apple Orchard Under Influence Of Mulch And Irrigation”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (August 5, 2015): 83–88. Accessed November 24, 2024. https://journals.rta.lv/index.php/ETR/article/view/923.