N. L. Kurachenko, O. A. Ulyanova, O. A. Vlasenko, V. L. Bopp, V. V. Kazanov
Krasnoyarsk State Agrarian University, prosp. Mira, 90, Krasnoyarsk, 660049, Russian Federation
Abstract. A series of studies was carried out with the purpose of investigating the suitability of chernozems in the experimental production farm Solyanskoye, located in the Kansk forest-steppe, Krasnoyarsk Krai, for growing rapeseed and camelina. Two arable land plots of a grain-fallow crop rotation with an area of 5 ha each were selected for the research. The soil cover of plot 1 allocated for rapeseed was characterized by a steep slope relief and a weakly pronounced microrelief, as well as typical medium-thick and thick clayey illuvial agrochernozems. Plot 2 allocated for camelina was located on a mild slope of a wide hill and was characterized by a complex soil cover. The coil cover in plot 2 was represented by a combination of clayey illuvial agrochernozems of different types, including thick podzolized clayey illuvial and low-thick cryogenic-micellar agrochernozems. Prior to cultivation, the soils were characterized by loose composition (0.76 g/cm3) and satisfactory moisture reserves (30–32 mm) in the first 20 cm of the soil. Having a high potential fertility, the studied chernozems featured a low, high and medium supply of nitrate nitrogen (6–8 mg/kg), mobile phosphorus (307 mg/kg) and potassium (59–66 mg/kg), respectively. The heterogeneity of the soil cover in plot 2 was a factor determining an average statistical decrease in the productive moisture, humus and nitrate nitrogen content by 2 mm, 1% and 2 mg/kg, respectively. Additionally, this plot showed a 12–21% increase in the spatial variation of the humus and productive moisture reserves in the first 20 cm of the soil, as well as a 22–33% increase in the content of mobile nutrients in the first 40 cm of the soil. Land plots characterized by a pronounced meso- and microrelief, as well as by the presence of low-productive agrochernozems, can be recommended for the cultivation of camelina, which is less demanding than rapeseed in terms of soil conditions.
Keywords: agrochernozems; soil cover; soil density; soil temperature; humus; agrochemical properties; spring rape (Brassica napus); camelina (Camelina sativa).
Author Details: N. L. Kurachenko, D. Sc. (Biol.), head of department (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); O. A. Ulyanova, D. Sc. (Biol.), prof (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); O. A. Vlasenko, Cand. Sc. (Biol.), assoc. prof. (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); V. L. Bopp, Cand. Sc. (Biol.), assoc. prof. (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); V. V. Kazanov, post graduate student (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.).
For citation: Kurachenko N. L., Ulyanova O. A., Vlasenko O. A., Bopp V. L., Kazanov V. V. Conformity Assessment of Agrochemical Conditions in the Kansk Forest-Steppe to the Biological Needs of Rapeseed and Сamelina. Dostizheniya nauki i tekhniki APK. 2019. Vol. 33. No. 11. Pp. 5–9 (in Russ.). DOI: 10.24411/0235-2451-2019-11101.