Author: Аnyo Mitkov
herbicides
7. Influence of soil herbicides on technological indicators of oriental tobacco
Author: Shteliyana Kalinova, Mariyan Yanev
22. Weed control in sunflower cultivation in the conventional technology
Author: Todor Manilov, Ivan Zhalnov
18. Biological efficacy of herbicide systems tested over local maize hybrid KN 509 and influence over it’s productivity
Author: Sonia Goranovska
3. Biological efficacy of systems of herbicides in middle earth potatoes
Author: Hristina Bakracheva, Shteliyana Kalinova