Boiko T, Botalov V, Romanov A. Substantiation of the minimum size of the trial area when estimating the yield of chaga in birch plants of Perm Region. Amazonia Investiga [Internet]. 21nov.2019 [citado 19maio2024];8(24):219-24. Available from: https://www.amazoniainvestiga.info/index.php/amazonia/article/view/974