Hristo Beloev University of Ruse Angel Kanchev, Bulgaria

Plamen Kangalov University of Ruse Angel Kanchev, Bulgaria

Zdenko Tkac Slovak University of Agriculture in Nitra, Slovakia

Vladimir Krocko Slovak University of Agriculture in Nitra, Slovakia

Jan Marecek Mendel University in Brno, Czech Republic

Vladimir Jurca Czech University of Life Sciences Prague, Czech Republic

Pavel Machal Mendel University in Brno, Czech Republic  

Jan Turan University of Novi Sad, Serbia  

Stanislaw Sosnowski University of Rzeszów, Poland

Stepan Kovalyshyn Lviv National Agrarian University, Ukraine

Djemal Katzitadze Agricultural University of Georgia, Georgia

Petar Dimitrov Institute of Soil Science, Agrotechnologies and Plant Protection “Nikola Poushkarov”, Bulgaria  

Eva Hvizdova Mendel University in Brno, Czech Republic

Georgi Tasev University of Forestry – Sofia, Bulgaria

Miho Mihov Institute of Soil Science, Agrotechnologies and Plant Protection “Nikola Poushkarov”, Bulgaria  

Georgi Komitov Agrarian University – Plovdiv, Bulgaria  

Pavol Findura Slovak University of Agriculture in Nitra, Slovakia

Mitko Nikolov University of Ruse Angel Kanchev, Bulgaria  

Miroslav Pristavka Slovak University of Agriculture in Nitra, Slovakia

Kaloyan Stoyanov University of Ruse Angel Kanchev, Bulgaria  

Volodimir Kyurchev Tavria State Agrotechnological University, Ukraine

Iurie Melnic State Agrarian University of Moldova, Moldova