Humus affects soil properties. As it slowly decomposes, it colours the soil darker; increases soil aggregation and aggregate stability; increases the CEC and contributes N, P and other nutrients.Soil organisms, including micro-organisms, use soil organic matter as food.
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As microorganisms help break down organic matter, they release essential nutrients and carbon dioxide into the soil, fix nitrogen and help transform nutrients into mineral forms that plants can use through a process called mineralization.
Invisible to the unaided eye, microbes are tiny, unicellular organisms. Since they can only be seen under a microscope, they are sometimes known as microorganisms or microscopic organisms. Nearly 60% of the living things on earth are composed of them.
Numerous distinct types of living things with various sizes and traits are referred to as "microbes."
Except for areas that humans have artificially sterilised, microorganisms are present almost everywhere. Even these must be rigorously sterilised and maintained at all times to prevent the introduction of pathogens from the outside world.
Microorganisms exist in soil, water, animal digestive tracts, animal skin, and on the surface of the earth. Because some bacteria can be harmful and cause disease, even while many of them can be beneficial to living beings, it is necessary for all of them to have immune systems.
Microorganisms, like all other living things, are crucial components of the ecosystems they live in.
Both farmers, who require the right soil to plant crops in, and engineers, who may need to know how soil will hold up under various conditions, thoroughly scrutinize how soil changes in its content and the architecture of its particles. Because it provides the ideal environment for plant growth, soil is crucial to an ecosystem's ability to sustain itself.
Both organic and inorganic components of the earth's surface known as soil are what allow plants to thrive.
Soil is made up of numerous distinct materials and evolves progressively over time. Weathered rocks and minerals are examples of inorganic materials, or nonliving materials.
Rocks are broken down into tiny bits by the mechanical or chemical process known as weathering. Rocks and organic materials, or those derived from living things, combine as rocks are broken down. For instance, as plants and animals pass away and disintegrate, they replenish the earth with nutrients.
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