R.Sh. Zaremuk, T.G. Prichko, S.V. Bogatyreva, T.G. Smelik
North-Caucasian Zonal Research Institute of Horticulture and Viticulture, ul. 40 let Pobedy, 39, Krasnodar, 350901, Russian Federation
Summary. The investigations were carried out on the application of new liquid complex fertilizer PolyMix-Agro with trace elements in chelate form in plantations of plum-trees. It was used late ripening Stanley variety on alycha stock. The study was carried out in the Cuban region of Krasnodar Krai under conditions of field experiment in 2013-2014 at three main stages (the beginning of development of generative organs, early flowering and fruit setting) in various combinations. The application rate of PolyMix-Agro is 1.0 l/ha in all variants of the experiment, the flow rate of the working solution is 200 l/ha. Foliar treatments help to reduce the shedding of plum buds in comparison with the control by 12.9-37.5%. An increase in the productivity with triple treatment at the phases “the beginning of the development of generative organs”, “early flowering” and “fruit setting” was 5.4 t/ha; at the phases “early flowering” and “fruit setting” it was 4.6 t/ha. There was an increase in the average fruit weight by 5.5 g while spraying by preparation in the phase “early flowering”. The fertilizer contributed to the increase in the content of sugar in fruits in the most variants of the experiment, a slight change in the content of ascorbic acid and P-active substances that improve taste and consumer quality of products. Triple treatment of plum plants at the phases: the beginning of the development generative organs, early flowering and fruit setting is the most effective, as well as double one at early flowering and fruit setting.
Keywords: plum, variety, PolyMix-Agro fertilizer, phenophases, ovary, shedding, yield.
Author Details: R.Sh. Zaremuk, D. Sc. (Agr.), head of research center (е-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); T.G. Prichko, D. Sc. (Agr.), head of center; S.V. Bogatyreva, Cand. Sc. (Agr.), research fellow; T.G. Smelik, research fellow.
For citation: Zaremuk R.Sh., Prichko T.G., Bogatyreva S.V., Smelik T.G. Efficiency of Application of PolyMix-Agro Complex Fertilizer at Cultivation of Plums in Krasnodar Krai. Dostizheniya nauki i tekhniki APK. 2016. Vol. 30. No. Pp. 36-38 (In Russ.).