O.Kovalenko

Influence of sowing time on growth, development and seed productivity of anise

Authors: 
O. Knyazyuk, І. Kostrets, O.Kovalenko

Planning and planting of greenery in homestead land with applying Echinacea Purple (Echinacea Purpurea) crop

Authors: 
O.Kovalenko, A.Chernova, I. Shyian