I.F. Kargin1, A.N. Perov1, М.А. Маksuta2
1Mordovian State University named after N. P. Ogarev
2LLC «Scientific center»
E-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.
Summary. In the field two-factor experience on leached Cblak soil in LLC «Rassvet» in Chamzinskaya district of the Republic of Mordovia in 2011-2013 dynamics of increase of underground phytomass of winter triticale of Bashkir short variety, depending on the doses of mineral fertilizers is investigated. Doses of mineral fertilizers were calculated under the planned harvest of triticale as 5 t-ha. Applied doses of phosphorous fertilizers compensated for the outflow of 100%, potash fertilizers – 60%, nitrogen – 20…100% relating the variants. Replication of the experiment – three times. It was revealed that the formation of agrocenoses of triticale was determined by the influence of mineral fertilizers and meteorological conditions. Phosphoric-potash fertilizers was significantly increased the number of surviving plants. On the average for three years under the influence of mentioned above fertilizers survival of plants increased at 2,6%, and the total mineral fertilizer – at 6,8…13,6 %, the number of plants – at 19…38 plantsm2, productive stems – at 37…74 plantsm2, the mass of grains per ear – at 0,03…0,06 g, significantly increased the number of grains per ear, which affected the value of the crop. On average over three years of phosphorus-potassium fertilizers have secured additionaly 0,4 t/ha of grain compared with control and complete fertilizing – 1,24…2,2 t-ha. Greatest effect ensured the application of mineral fertilizers in doses of N132P52K84. Further increasing doses of nitrogen fertilizers have not led to reliable increase of yield. The increase of grain yield under applying herbicides calculated as 0,25 t-ha compared with control variant. Effect from interaction between mineral fertilizers and herbicides wasn’t significant as the weeds were in the lower tier and don’t have any negative effect on the formation of triticale crops.
Keywords: leached black soil, agrocenosis of winter triticale, survival, safety, harvest.