Inclusion of air- and water-rich nutrients is a reason why organic matter is important for plant growth. Plants need air, heat, light, moisture, and nutrients in order to grow. Organic matter, such as found in compost or fertilizers of Mother Nature's humus, provides the structure and texture which plant roots need for intaking soluble nutrients and wasting out exudates.
Because it gives more fertility to the soil, drainage, better ability for the plants to get nutrition from the roots, good for storing water in the soil
organic matter important to plant growth is humus.
Volcanic ash is devoid of organic matter hence plant growth is not promoted in it. When plant debries get mixed with it and micro-organisms in the presence of moisture breakdown the organic matter into minerals, plant growth may be promoted in that case.
Decomposition of dead organisms adds organic matter, or humus, to the soil; humus is necessary to support plant growth.
dirt
Because, it has organic material that is good for plant growth.
A timber pile is not soil, it's a pile of timber.If a substance does not support plant growth or have the capability of supporting plant growth, it is not soil.If the timber pile decomposes to a point where the remaining organic matter can support plant growth, it would be considered an organic soil, provided the layer of organic matter was thick enough. Organic soils are known as Histosols in US Soil Taxonomy.
Decomposition of dead organisms adds organic matter, or humus, to the soil; humus is necessary to support plant growth.
Decaying plant and animal matter in the soil are pretty much fertilizer. Once organic matter decomposes it essentially becomes compost. Compost is rich in nutrients and will promote very healthy plant growth.
soils maintain their fertility
Movement of nutrients and retention of water are the purposes of organic matter. Organic matter makes soil amenable to proper aeration, drainage, infiltration and percolation, and supportive of plant root growth and intakes. It recycles carbon-based compounds into molecules and back.
red soil with high organic matter
Organic matter is any living matter such as animal meat or plant matter.