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Organomineral fractions as a way to assess the chemical transformation of elements in soils of different cultivationстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или ScopusДата последнего поиска статьи во внешних источниках: 22 мая 2024 г.
- Авторы: Kotelnikova Anna, Matveeva Natalia, Borisochkina Tatiana, Rogova Olga, Volkov Dmitry S., Savichev Alexander
- Журнал: Soil and Tillage Research
- Том: 242
- Год издания: 2024
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 106141
- DOI: 10.1016/j.still.2024.106141
- Аннотация: Mineral fertilizers are one of the main important sources of elements in agricultural soils. The elements that enter the soil are involved in the transformation of soil organomineral compounds. Elemental analysis of soil granulo-densitometric fractions can be used to characterize these changes in detail. The study analyzes changes in macro- and microelement content in the organomineral fractions of soils under different cultivation. The clay-associated fraction with particle size <1 μm (CF), the light fraction with particle density < 2 g/cm3 (LF) and the residual fraction (RF) extracted from soils under the influence of mineral fertilizer application (the “effect” group) and under the aftereffect (the “after-effect” group), in which single (1NPK) or double (2NPK) doses of fertilizer were applied, were analyzed. Differences in the attribution of elements to the soil fractions were observed, allowing them to be divided into groups. The first group includes elements with a maximum concentration in the CF: CF > LF > RF (As, B, Ba, Cr, Fe, Li, V, Zn, P, Mg, K, Na). The second group includes elements with the maximum concentration in the LF: LF > CF > RF (Co, Cu, Mn, Ni, Pb, Sr, Ca). It is shown that the application of mineral fertilizers leads to a redistribution of elements in the soil organomineral fractions, there is an imbalance in the contents and ratios of elements, which can be the cause of chemical degradation of agrocenosis. The main changes are related to the redistribution of trace elements: the elements added with fertilizers are more confined to the organic and transformed mineral components. This may contribute to an increase in the intensity of the mass flux of chemical elements in the soils of highly cultivated farmland. Changes in the “after-effect” group are smoother, indicating that the balance of elements in the soil is restored when fertilization ceases.
- Добавил в систему: Котельникова Анна Дмитриевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 2. | 1-s2.0-S0167198724001429-main.pdf | 1-s2.0-S0167198724001429-main.pdf | 4,2 МБ | 21 мая 2024 [olga_rogova] |