Organic matter of sod-podzolic soil after transition to a fallow state

Abstract

Soil plays a crucial role in carbon sequestration in terrestrial ecosystems. It is known that the strengthening of carbon sequestration processes occurs with a decrease in the intensity of soil treatments. The study of changes in organic matter and physical properties of sod-podzolic soil 16 years after the transition from arable soils to a fallow state against the background of weak water erosion was carried out. A significant increase in the content and reserves of total carbon in fallow soil compared to arable soil was found, mainly due to carbon of the light fraction. On arable soil, the content of the light fraction in the lower part of the field was significantly higher than in the upper part, due to the washing away of light particles as a result of erosion, these differences were smoothed out on fallow soil. There are no significant changes in the density, density of the solid phase and total porosity in fallow soil at this stage of succession, compared with arable soil. In fallow soil, the content of macro-aggregates (including water-bearing ones) was noticeably higher, and the share of micro-aggregates was lower than in arable soil.

The effectiveness of the use of selenium-containing top dressing in the cultivation of radish

“…According to various authors, the content of trace elements in plants ranges from 1•10 -3 to 1•10 -5 % (Sheudzen, 2003). The content of macronutrients and the diversity of the microelement composition of cultivated plants is due not only to the specific and varietal characteristics of the plants themselves, but also to the content of mobile, that is, forms of elements and organic matter available to plants in arable soils, which, in turn, depends on the underlying rocks (Protasova, 2005;Borisov et al, 2021;Zhevnerov et al, 2021;Borisov et al, 2022). In addition, agrotechnics of crop cultivation and the use of microelement fertilizing play an essential role in the formation of the crop (Eliseev et al, 2011;Eliseeva and Eliseev, 2012;Eliseev and Eliseeva, 2016).…”

The relation between coronary artery disease and newly diagnosed dysglycemia

“…In the context of coronary artery disease, the state of hyperglycemia can result from three factors: (a) prediabetes; (b) development of diabetes mellitus; (c) stress associated with unstable coronary artery disease. 22,23 According to the International Diabetes Federation, the number of cases of diabetes mellitus is constantly increasing. As of 2005, there were 415 million people living with this diagnosis.…”