V.B. Korenev, L.A. Vorobeva
Novozybkov Agricultural Experimental Station – the branch of the V.R. Williams Federal Scientific Center of Fodder Production and Agroecology, Opytnaya stantsiya, Novozybkovskii r-n, Bryanskaya obl., 243020, Russian Federation
Abstract. During the period from 1997 to 2012, we studied the efficiency of various fertilization systems in order to increase the productivity of crops under conditions of sod-podzol sandy soils in Bryansk region. The soil of the test plot is sod-podzol sandy; the pollution density by Cs-137 is 560–700 kBq/sq.m, the humus content is 1.27–1.98 %; рН(КСl) is 4.3–4.6; hydrolytic soil acidity is 2.2–3.1 me/100 of soil; the content of mobile phosphorus and exchange potassium is 186–432 and 27–111 mg/kg of soil, respectively. Under experimental conditions, we obtained the evaluation of a spatial variation of crop productivity, which indicated both the direct action of fertilizers on the yield and the aftereffect. The greatest yield of lupine for green mass (18.5 t/ha) was obtained in the variant with the application of increased doses of mineral fertilizers (P90K90), it was 1.5 times higher than in the control. The maximum increase in the productivity of grain of winter rye (up to 1.72 t/ha) was obtained in the variant with the application of the increased doses of mineral fertilizers (N120P90K120) in combination with organic fertilizers. The maximum harvest of potato tubers (15.8 t/ha) was received in the variant with the application of the raised doses of mineral fertilizers (N120P90K120) in combination with the double dose of organic fertilizers. The greatest increase in productivity of oat (up to 1.63 t/ha) was obtained in the variant with N90K90. The combined use of all studied types of fertilizers increased the productivity of grain of winter rye two times. The use of organic and mineral fertilizers for potato increased the yield of tubers by 113%. We noted the aftereffect of organic fertilizers in combination with mineral fertilizers on the productivity of oat, the yield of grain increased 2.2 times.
Keywords: productivity, organic and mineral fertilizers, lupine, winter rye, potato, oat, sandy soil.
Author Details: V.B. Korenev, Cand. Sc. (Agr.), leading research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); L.A. Vorobeva, Cand. Sc. (Agr.), leading research fellow.
For citation: Korenev V.B., Vorobeva L.A. Productivity of Cultures in a Crop Rotation at Prolonged Use of Fertilizers. Dostizheniya nauki i tekhniki APK. 2018. Vol. 32. No. 2. Pp. 55-57 (in Russ.). DOI:10.24411/0235-2451-2018-10214.