Mu 2020, Unduna wa Zaulimi ku Russia udzaonetsa chiwonetsero cha "All-Russian Field Day" mwanjira yatsopano
Pa Julayi 9, 2020, kutsegulidwa kwa chiwonetsero cha agrotechnical "All-Russian Field Day" chidzachitika m'chigawo cha Bryansk - chimodzi ...