Ecologo-agrochemical characteristic of the trace microelements in the system of soil-plant in agrocenoses of Omsk Irtysh Region

The data on the content of microelements Mn, Cu, Zn, Co, Mo, B in soils of different zones of Omsk Irtysh region and plants grown on them are presented. The content of acid-soluble forms of Mn, Cu, Zn, Co, determined in 5M HNO3, in chernozem and solonets soils of the forest-steppe and steppe approac...

Full description

Bibliographic Details
Published in:Почвы и окружающая среда
Main Author: Азаренко, Юлия Александровна
Format: Article in Journal/Newspaper
Language:Russian
Published: ФГБУН Институт почвоведения и агрохимии СО РАН 2018
Subjects:
Online Access:https://soils-journal.ru/index.php/POS/article/view/1
Description
Summary:The data on the content of microelements Mn, Cu, Zn, Co, Mo, B in soils of different zones of Omsk Irtysh region and plants grown on them are presented. The content of acid-soluble forms of Mn, Cu, Zn, Co, determined in 5M HNO3, in chernozem and solonets soils of the forest-steppe and steppe approaches the background total content in the chernozems of the south of Western Siberia. It depends on the content of sludge fractions, physical clay, the value of the cation exchange capacity. On the soils of the southern taiga, plants are deficient in mobile B, Mo, Co, Cu. In the chernozem and solonets soils of the forest-steppe and steppe zones, the mobility of the Cu, Zn, Co compounds is low (0.5-1.2% of acid-soluble forms), Mn (1.8-3.3%), B and Mo (5-13% ) is higher. The content in mobile zinc soils is estimated as low, Mn, Cu, Co as low and medium, Mo - medium and high, B - high. The level of trace elements in natural and cultivated plants is higher than in the southern taiga, however, a low content of Cu, Co, and sometimes Zn is often observed. In solonetzes and saline soils, excessive concentrations of mobile B are contained, which contributes to an increase in the entry of the element into food chains. Представлены данные о содержании микроэлементов Mn, Cu, Zn, Co, B и Mo в почвах разных зон Омского Прииртышья и выращенных на них растениях. Содержание кислоторастворимых форм Mn, Cu, Zn, Co, определенных в 5М HNO3, в черноземных и солонцовых почвах лесостепи и степи приближается к фоновому валовому содержанию в черноземах юга Западной Сибири. Оно зависит от содержания фракций ила, физической глины и величины емкости катионного обмена. На почвах южной тайги растения испытывают дефицит подвижных B, Mo, Co и Cu. В черноземных и солонцовых почвах лесостепной и степной зон подвижность соединений Cu, Zn, Co низкая (0,5-1,2% кислоторастворимых форм), Mn (1,8-3,3%), В и Мо (5-13%) более высокая. Содержание в почвах подвижного цинка оценивается как низкое, Mn, Cu, Co как низкое и среднее, Мо – среднее и высокое, В – ...