#Farm together crop levels free
Sandy soils have little or no structure but are often free draining. Soil structure influences plant growth by affecting the movement of water, air and nutrients to plants. The size and shape of aggregates give soil a characteristic called soil structure. Organic matter is one of the major cementing agents for soil aggregates. Aggregates are held together by clay particles and organic matter. The solid part of the soil is made up of particles such as organic matter, silt, sand and clay which form aggregates.
Texture grades depend upon the amount of clay, sand, silt and organic matter present. The combination of mineral fractions (gravel, sand, silt and clay particles) and organic matter fraction give soil its texture. Soil texture, structure, drainage characteristics An example of this is excessive traffic causing compaction and reducing the amount of macropores, or spaces between the aggregates, therefore reducing the amount of air and water into and through the soil. It is also important to ensure that management practices are not contributing to the decline of the soil. It is important to monitor the physical characteristics of soil to understand soil condition. While some soils are naturally better structured than others, some physical characteristics of soils can be changed with good management.
Soil stores water for plant growth and supports machine and animal traffic. Good soil structure contributes to soil and plant health allowing water and air movement into and through the soil profile. porosity (the space between the particles).The physical characteristics of soils include all the aspects that you can see and touch such as: Each type has particular strengths and weaknesses for agricultural production. Processes such as leaching, weathering and microbial activity combine to make a whole range of different soil types. Soils vary greatly in their chemical and physical properties. Soil provides the structural support to plants used in agriculture and is also their source of water and nutrients. It consists of inorganic particles and organic matter. Soil is the loose surface material that covers most land.
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