Scientific Journal of KubSAU

The provisions to improve the efficiency of vineyards are the selection of varieties different by ripening, adapted to local conditions, as well as the use of a new generation of fertilizers. According to phenological observations and actual production period, the varieties of table grapes are divided into groups by ripeness – early and middle. According to the yield, there were emphasized the following varieties: in the early group – Cardinal (11,3 t/ha), Vostorg (Delight) (11,2 t/ha), Bogatyrskiy (10,9 t/ha); in the middle ripening group - Kishmish luchistyj (11,2 t/ha), Moldova (11,2 t/ha), with large clusters (266-453 g) and berries (3,2-7,0 g), a berries’ crush resistance was from average 850 g to high up to 1528 g, berries’ strength of attachment to fruitstems was high – 259 and solid – 666 g. It was observed the positive benefit of foliar application of a new generation of micro fertilizers. In the phase of ripening of berries the total length of shoots of fertilized variants was above the control variant for the variety Ranniy Magaracha on 2,6-13,4%, for the Karaburnu on 2,5-13,9%. Maturing shoots in this phase was on the variety Ranniy Magaracha – 76,5- 92,4% (control variant – 74,6%), while on the Karaburnu variety – 72,8-83,1% (control variant – 70,9%). Fertilizers contributed to the increase of leaf area on the Ranniy Magaracha variety on 3,9-15,9 thousand sq.m/ha (control variant – 20,0 thousand sq.m/ha), on the variety Karaburnu on 3,4-13,1 thousand sq.m/ha (control variant – 22,8 thousand sq.m/ha). The yielding capacity on the fertilized variants have increased by 7,1-23,0% depending on the variety. The maximum yielding capacity was obtained when using compound nanotechnological fertilizer Nagro on the variety Ranniy Magaracha – 13,4 t/ha and on the variety Karaburnu – 15,5 t/ha