Ability of poly-unsaturated fatty Arachidonic Acid and Micosan bio-fun-gicide with 3% h.c.s.(alkali extract of alkilofraiic glucans mushroom - Fomes fomentarius) to oppress the pathogens' parasitism on the vegetable crops is experimentally proved. There is also studied biological efficacy of fungicides and their tank blends on the cucumber crop.

It is determined that crop cultivation systems (continuous culture and its interruption by crop rotation links with different fertilizer backgrounds) influence the productivity and economic efficiency of tomato and cucumber cultivation under rainfed conditions in Right-Bank of Forest-Steppe zone in Ukraine. Reported calculations show the increased level of profitability of the continuous crop growing in case of interruption by annual crop rotation link against the background of mineral nutrition, but additional organic fertilizers allow to get more profit per unit area.

The article offers information on main vectors in scientific research of Nizhyn Mistsevyi cucumber (Cucumis sativus L.) at Maiak variety testing facility under IOB NAAN (National Agrarian Academy of Science) for the period of 1974 to 2010 (variety testing and seed production).