Author: Tanko Kolev
nitrogen fertilization
6. Dependence between the additional grain yield and the rate of nitrogen fertilization on triticale varieties for the Plovdiv region
Author: Hristofor Kirchev, Aleksander Matev, Vanya Delibaltova
1. Investigation the predecessor and nitrogen fertilization influence on the productivity of triticale variety Bumerang
Author: Angel Kostolov, Vanya Delibaltova