It improves the fertility and water retention of the soil and is therefore important for plant growth ▶ USAGE Avoid confusion with hummus What does humus mean? The term "humification" in Russian literature has a double meaning: firstly, it is the accumulation of organic matter in the soil, and secondly, - the content of organic matter in the soil. As humus decomposes, its components are changed into… noun. : Bevorzugen Sie frische, reiche Humuserde Bedingungen der Stadt ist gut verträglich, sowie Schnitt-und Krone-Spritzgießen. A German layman, if asked, would probably check the Brockhaus Encyclopedia for an answer. Soil is the medium for plant growth as it provides an anchor for plant roots and acts as a water holding tank for necessary moisture. Humus also absorbs water, and expands and shrinks between dry and wet states to a higher extent than clay, increasing soil porosity. The organic component of soil, formed by the decomposition of leaves and other plant material by soil microorganisms. Definition of humus in the Definitions.net dictionary. mass noun. Is a humus plant a thing? The dark humus soil was mostly sown with wheat. Soil Texture. Clay soil tends to clump, while sandy soil is too loose. A horizon, A-horizon - the top layer of a soil profile; usually contains humus. The ratio of carbon to nitrogen (C:N) of humus is 10:1. There he would find the following definition: “Humus, black-brown matter in the topsoil, is produced by the putrefaction of vegetable and animal matter. Need a humus soil definition? Humus, nonliving, finely divided organic matter in soil, derived from microbial decomposition of plant and animal substances. In a clay soil, humus will loosen the soil to make it more crumbly. The definition of humus can vary slightly depending on which field of science is addressed. Nutrients from compost and manure build up in the soil, reducing the need for artificial fertilizers. Humus improves soil texture and planting conditions. Humus is highly nutritious and rich in minerals and microbes vital for healthy plant growth. Humus has many nutrients that improve the health of soil, nitrogen being the most important. The degradation of plant and animal matter, i.e. Other soils have large, hard and flat clumps. Most of the crops require tillage, and that is exhaustive of the store of humus. Use it to enhance the growth of your indoor or outdoor plants. The word humus comes from the Latin word humus, which means ground. The soil with small round clumps is best because it lets in air and water. Humus is dark, organic material that forms in soil when plant and animal matter decays. 2. You can increase the organic matter in your garden by adding compost or applying mulch. noun. The humus and clay and minerals in the soil are like glue. The clumps make shapes by themselves. Now his first forest is 3 metres tall, its floor a thick layer of humus. ... Freebase (0.00 / 0 votes) Rate this definition: Humus. Humus also is able to hold 80-90 per cent of its own weight in moisture. The Guardian Jun 12, 2020 It is decayed organic matter, or humus, that improves soil structure and promotes fertility when added to … : Auf der dunklen Humuserde wurde vor allem Weizen angebaut. When the material had reached the condition of humus, the bacterial activity decreased to the point where fertility was restored. Humus is rich in carbon and is generally acidic as a result of its humic acid content. Meaning of humus. Humus is not a form of soil, rather it is the broken down composted remains of leaves, grass, and other organic matter contained within the soil. This material is called leaf litter. bag nature matter to help plants thrive. A thick humus layer with great water storage capability is able to mitigate the effects of such extreme weather on mountain forests and the mountain landscape. Application of organic matter to the soil adds carbon, which promotes the growth of beneficial bacteria, which increases the likelihood of hearty plants. Soil rich with humus contains many organic nutrients that break down slowly into a form that plants can use. The glue sticks the sand and silt and clay together and makes clumps. Partially decomposed plant matter in the soil is an example of humus. A brown or black organic substance consisting of partially or wholly decayed vegetable or animal matter that provides nutrients for plants and increases the ability of soil to retain water. 0. Ideal use for vegetable, herb, or flower garden. Humus: the portion of the soil caused by the decay of animal or vegetable matter. 1. humus - partially decomposed organic matter; the organic component of soil. Noun. Humus is the most complex organic molecule found in soil, and as a result it is the most stable organic molecule. A type of humus is it a morphological form of naturals accumulation of humic substances in profile or on the surface of soil, conditioned by general direction of soil-forming process and humification of organic matter. 1. 2. Humus-rich soils are naturally friable, clay soils are tight and almost impenetrable when dry and sandy soils are loose and coarse and need frequent watering to maintain plant growth… : Other examples in context Humic definition is - of, relating to, or derived at least in part from humus. Humus is the dark organic matter that forms in soil when dead plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up. dirt, soil - the part of the earth's surface consisting of humus and disintegrated rock. It holds water, yet is well draining. From Phys.Org. Adding 1 to 2 inches of humus to the top of most soils and working it in will produce an improved planting medium that's texturally more sound, aiding in garden success. Some soils have small round clumps. Rich humus soil is black. Humus, partially decayed animal and vegetable matter in the soil. ‘Incidentally, soil rich in organic humus will hold more water longer and be more drought-resistant.’. HUMUS Meaning: "vegetable mould," 1796, from Latin humus "earth, soil," probably from humi "on the ground," from PIE… See definitions of humus. : Prefer fresh, rich humus soil conditions of the city is well tolerated, as well as pruning and crown molding. noun. It increases the water storage potential of the soil and produces carbonic acid, … Humus is the organic material in soil. 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