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Hard bedrock (R) is not in a strict sense soil. In classical [1] soil science, humus is the dark organic matter in soil that is formed by the decomposition of plant and animal matter. It is a kind of soil organic matter. It is rich in nutrients and retains moisture in the soil. Humus is the Latin word for "earth" or "ground". [2]
There are separate editions for the sciences and the social sciences; the 2013 science edition includes 8,411 journals, and the 2012 social science edition contains 3,016 titles. The issue for each year is published the following year after the citations for the year have been published and the information processed.
Nutrients in the soil are taken up by the plant through its roots, and in particular its root hairs.To be taken up by a plant, a nutrient element must be located near the root surface; however, the supply of nutrients in contact with the root is rapidly depleted within a distance of ca. 2 mm. [14] There are three basic mechanisms whereby nutrient ions dissolved in the soil solution are brought ...
More plants cohabit in mull humus, and the plant biodiversity is highly related to nutrient availability and the impacts of the soil acidity. Too much nutrient availability may negatively impact plant growth, but the high competition between soil organisms can deal with the concern. [11] The effects of mull humus on the vegetation growth are ...
The term comes from humus, which in turn comes from the Latin word humus, meaning "soil, earth". [1] Humic substances represent the major part of organic matter in soil , peat , coal , and sediments , and are important components of dissolved natural organic matter (NOM) in lakes (especially dystrophic lakes ), rivers, and sea water .
As of 2024, Journal Citation Reports lists the journal's 2023 impact factor as 9.1, ranking it tenth of 265 journal titles in the category "Plant Sciences". [1] As of 2023, it is being published as open access, under the Subscribe to Open model. [2] Its current editors are John M. McDowell and Gwyn A. Beattie. [3]
Food Research International is a monthly peer-reviewed scientific journal covering various aspects of food science. It is published by Elsevier and was established in 1992. The editor-in-chief is Anderson Sant'Ana ( University of Campinas ).
The smallest creatures (microbes) use the micropores filled with air to grow, whereas other bigger animals require bigger spaces, macropores, or the water film surrounding the soil particles to move in search for food. Therefore, soil textural properties together with the depth of the water table are also important factors regulating their ...