Keyword Analysis & Research: in science what is the definition of humus

dictionary.com

https://www.dictionary.com/browse/humus

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merriam-webster.com

https://www.merriam-webster.com/dictionary/humus

WebThe meaning of HUMUS is a brown or black complex variable material resulting from partial decomposition of plant or animal matter and forming the organic portion of soil. a brown or black complex variable material resulting from partial …

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nationalgeographic.org

https://www.nationalgeographic.org/encyclopedia/humus/

WebSep 19, 2022 · Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and …

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dictionary.com

https://www.dictionary.com/browse/humus

WebHumus definition, the dark organic material in soils, produced by the decomposition of vegetable or animal matter and essential to the fertility of the earth. See more. …

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britannica.com

https://www.britannica.com/science/humus-soil-component

WebJul 20, 1998 · humus, nonliving, finely divided organic matter in soil, derived from microbial decomposition of plant and animal …

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wikipedia.org

https://en.wikipedia.org/wiki/Humus

OverviewBenefits of soil organic matter and humusDescriptionHumificationStabilityHorizonsSee alsoExternal linksThe importance of chemically stable humus is thought by some to be the fertility it provides to soils in both a physical and chemical sense, though some agricultural experts put a greater focus on other features of it, such as its ability to suppress disease. It helps the soil retain moisture by increasing microporosity, and encourages the formation of good soil structure. The incorporation of oxygen into large organic molecular assemblages generates many active, negatively charged sit…

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quizlet.com

https://quizlet.com/204998899/humus-flash-cards/

WebHumus The stable fraction of organic matter that remains in the soil after most everything else has decayed What is usually measured with humus? Live microbial tissue What % …

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sciencedaily.com

https://www.sciencedaily.com/terms/humus.htm

WebJun 1, 2021 · Humus is a complex organic substance resulting from the breakdown of plant material in a process called humification. Note: The above text is excerpted from the …

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sciencedirect.com

https://www.sciencedirect.com/topics/earth-and-planetary-sciences/humus

WebHumus is the most complex organic molecule found in soil, and as a result it is the most stable organic molecule. The turnover rate for humus ranges from 2 to 5% per year, …

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nationalgeographic.org

https://www.nationalgeographic.org/encyclopedia/humus/

Humus contains many useful nutrients for healthy soil. One of the most important is nitrogen. Nitrogen is a key nutrient for most plants. Agriculture depends on nitrogen and other nutrients found in humus. Some experts think humus makes soil more fertile. Others say humus helps prevent disease in plants and food crops.

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nationalgeographic.org

https://www.nationalgeographic.org/encyclopedia/humus/

Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up. This material is called leaf litter. When animals die, their remains add to the litter. Over time, all this litter decomposes.

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nationalgeographic.org

https://www.nationalgeographic.org/encyclopedia/humus/

Humus contains many useful nutrients for healthy soil. One of the most important is nitrogen. Nitrogen is a key nutrient for most plants. Agriculture depends on nitrogen and other nutrients found in humus. Some experts think humus makes soil more fertile. Others say humus helps prevent disease in plants and food crops.

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