1.
Timbare R, Bušmanis M. Environmentally Friendly Nitrogen Fertilizers Appplication for Winter Cereals Considering the Mineral Nitrogen Content in Soil. ETR [Internet]. 2006 Jun. 26 [cited 2024 Dec. 22];1:284-7. Available from: https://journals.ru.lv/index.php/ETR/article/view/2019