Lejiņš A, Lejiņa B. THE GRAIN CROP YIELD IN DIFFERENT CROP ROTATION AND EFFICIENCY OF HERBICIDES AND FUNGICIDES TREATMENT. ETR [Internet]. 2007 Jun. 23 [cited 2024 Sep. 19];1:125-31. Available from: https://journals23.rta.lv/index.php/ETR/article/view/1729