D. V. Zhuikov
Center of Agrochemical Service “Belgorodsky”, ul. Shchorsa, 8, Belgorod, 308027, Russian Federation
Abstract. The paper analyzes long-term observations of the manganese content in the soils of the Belgorod region, provides data on the element content in the organic fertilizers used, as well as in crop production. The greatest amount of manganese is contained in the upper horizons of typical chernozem soils in the conservation areas (Yamskaya Step’ territory of Belogorye state nature reserve) and ordinary chernozem (Rovensky nature park); in the latter it is higher by 27.4% (442 mg/kg of soil vs. 321 mg/kg of soil). Down the profile the value of this indicator decreases. Arable soils are characterized by similar indicators. The provision of soils with easily accessible forms of manganese is characterized by a somewhat different pattern of its distribution in the soil profile. The typical chernozem has two maxima (in the arable horizon and underlying rock); the ordinary chernozem is characterized by the increased content of mobile manganese in the deep layers. Arable horizons vary significantly (by a factor of 4) in the content of this chemical element: 16.7 mg/kg in typical chernozem and 4.1 mg/kg in ordinary chernozem. With greater availability of gross manganese, ordinary chernozem is characterized by lower saturation of the mobile forms of this element. Their average content in arable typical chernozem soils is about 4.8% of the gross amount, in ordinary chernozem soils – 1.0%. In the Belgorod region, the medium content of mobile manganese is characteristic for 56.4% of arable lands, the low content – for 38.7%. Among the main leguminous crops cultivated in the region, white lupine is noted for very high manganese absorbability. In its grain, the average content of this mineral element was 1065 mg/kg, which was 44 times higher than in soybean seeds and 120 times higher than in pea seeds. The main anthropogenic source of manganese in the agrocenosis is organic fertilizer.
Keywords: manganese; soil; chernozem; soybean; pea; white lupine.
Author Details: D. V. Zhuikov, senior surveying engineer (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.).
For citation: Zhuikov D. V. Monitoring of Manganese Content in Agrocenosis. Dostizheniya nauki i tekhniki APK. 2019. Vol. 33. No. 3. Pp. 19–22 (in Russ.). DOI: 10.24411/0235-2451-2019-10304.