WEEDS CONTAMINATION OF RICE CROP AT VARIOUS SOIL TREATMENTS

A.Ch. Udzhukhu¹, E.E. Chelnokova¹, V.A. Maslivets², S.A. Shevel^3
1All-Russian Research Institute of rice crop, Belozerny settlement, 3, Krasnodar, 350921, Russia
²Kuban State Agrarian University, Kalinina Str., 13, Krasnodar, 350044, Russia
³Department of Agriculture and Processing Industry of Krasnodar Region, Rashpilevskaya Str., 36, Krasnodar, 350000, Russia

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Summary. Researches were conducted from 2009 to 2012 in farms of Krasnodar region on the Kuban River left bank (agrofirm «Kuban» of the Seversk area) on meadow-marsh soil and on the right bank (the enterprise «Krasnoarmeysky») on meadow-black soil. The main purpose was to study and develop a complex of the agrotechnical treatments directed on preservation of soil fertility, destruction of weeds and improvement of physical and chemical properties of rice soil of Krasnodar region after lucerne of the second year. The presented material is obtained by means of overseeing weeds contamination level of the soil and rice crops weeds the fixed plots of 20 m². It is established that treatment on 12-14 cm and superficial processing on 8-10 cm of processing did not concede deep ploughing on 18-20 cm for preventing dissemination of malicious marsh reed weed. In two agrolandscape zones of Krasnodar region both on the right and left banks of the Kuban River all ways of soil processing in the autumn conceded to spring treatments at 8,9-9,6% in destruction of marsh reed weed and 6,6-6,8% – bur grass. Applying preparations Nomini, Segment and Citadel vividly decreased the weeds contamination to the harvesting period of rice crop: on the left bank while ploughing in autumn the number of marsh reed weed was 1,0-1,7 pcs^-sq.m, in spring – 1,0-1,3 pcs^-sq.m; bur grass – at 1,0-2,0 and 1,0 pcs^-sq.m accordingly. On the right bank the weeds contamination up to harvest was considerably higher in variants with herbicides applying in comparison with the left one – 1,0-3,2; 1,0-2,5 pcs^-sq.m and 1,9-5,1; 1,0-5,9 pcs^-sq.m accordingly.

Keywords: rice, ploughing, surface treatment, null treatment, herbicides, nomini, segment, citadel, weeds, bur grass, marsh reed weed.

Author Details: A.Ch. Udzhukhu, Dr. Agrar. Sci, Leading Researchr (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); E.E. Chelnokova, Junior Researcher; V.A. Maslivets, Dr. Agrar. Sci, Professor; S.A. Shevel, graduate.

For citation: Udzhukhu A. Ch., Chelnokova E.E., Maslivets V.A., S.A. Shevel S.A. Weeds contamination of rice crop at various soil treatments. Dostizheniya nauki i tekhniki APK. 2014. T.28. №11. pp. 37-39 (In Russ)