Soil composition is complex and can be divided into three categories: organic matter, inorganic matter and water.
Organic matter refers to substances containing organic matter in soil, mainly from animal and plant residues, such as plant residues, animal manure, humus and so on.
Organic matter is the main component of soil, which can provide nutrients for plants, promote their growth and development, absorb and store water, and keep the soil moist.
Inorganic substances refer to substances that do not contain organic matter in the soil, and mainly come from weathering of the crust, such as quartz, feldspar, iron ore, siliceous, etc.
Inorganic matter is an important part of soil. They can provide nutrients needed by plants, such as nitrogen, phosphorus and potassium, and also improve the structure of soil and promote the growth and development of plants.
Water refers to the substance containing water in the soil, which mainly comes from rainfall, plant transpiration, groundwater and so on.
Water is an important part of soil, which can provide water for plants, promote plant growth and development, improve soil structure and keep soil moist.
In a word, the composition of soil is very complex and can be divided into three categories: organic matter, inorganic matter and water.
Organic matter is the main component of soil, which can provide nutrients needed by plants and promote their growth and development; Inorganic matter is an important part of soil, which can provide nutrients needed by plants and improve soil structure. Water is an important part of soil, which can provide water for plants, promote plant growth and development, improve soil structure and keep soil moist.
Therefore, the composition of soil is very important to the growth and development of plants, and people should strengthen the protection of soil to ensure the healthy development of soil.