What are physical and chemical properties of soil?

A soil’s physical and chemical properties affect plant growth and soil management. Some important physical and chemical properties of soil are mineral content, texture, cation exchange capacity, bulk density, structure, porosity, organic matter content, carbon-to-ni- trogen ratio, color, depth, fertility, and pH.

What are the chemical properties of soil?

Chemical properties

• Cation Exchange Capacity (CEC) Cation Exchange Capacity (clay) – Subsoil.
• Soil pH. pH – Topsoil.
• Base saturation percentage.
• Plant nutrients.
• Organic soil carbon.
• Soil nitrogen.
• Soil salinity.
• Soil sodicity.

What are the 5 chemical properties of soil?

Chemical Analysis. Soil chemical properties, including heavy metal concentrations, pH, total carbon, total nitrogen, CEC, exchangeable calcium (Ca), magnesium (Mg) and potassium (K), exchangeable Al and hydrogen (H) and available phosphorous (P), were determined following standard laboratory methods.

What are the physical properties of the soil?

Physical properties of soil include color, texture, structure, porosity, density, consistence, aggregate stability, and temperature. These properties affect processes such as infiltration, erosion, nutrient cycling, and biologic activity.

What are the three main chemical properties of soil?

Chemical properties of soils include the following aspects: inorganic matters of soil, organic matters in soil, colloidal properties of soil particles and soil reactions and buffering action in acidic soils and basic soils.

What is the most important chemical property of soil?

Soil pH. Soil pH is perhaps the single most important aspect of soil chemistry, because it affects the availability of nutrients to plants and the activity of microorganisms in the soil. Soil pH is a measure of the number of hydrogen ions (H+) present in a solution.

Which is chemical property?

A chemical property is a characteristic of a particular substance that can be observed in a chemical reaction. Some major chemical properties include flammability, toxicity, heat of combustion, pH value, rate of radioactive decay, and chemical stability.

What are the chemical properties of black soil?

Chemical Composition of Black Soils

• 10 per cent of alumina,
• 9-10 per cent of iron oxide,
• 6-8 per cent of lime and magnesium carbonates,
• Potash is variable (less than 0.5 per cent) and.
• phosphates, nitrogen and humus are low.

What are the three main physical properties of soil?

The particles that make up soil are categorized into three groups by size – sand, silt, and clay. Sand particles are the largest and clay particles the smallest. Most soils are a combination of the three. The relative percentages of sand, silt, and clay are what give soil its texture.

What are the physical properties?

A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points.

What are the most important chemical properties of soil?

Is pH a chemical property of soil?

Soil Reaction (pH) By definition, “pH” is a measure of the active hydrogen ion (H+) concentration. It is an indication of the acidity or alkalinity of a soil, and also known as “soil reaction”. The pH scale ranges from 0 to 14, with values below 7.0 acidic, and values above 7.0 alkaline.

What are five properties of soil?

– Texture. The texture of the soil refers to the proportions of three major materials within it: sand, clay and silt. – Structure. Linked to the texture is the structure of the soil. – Biology. The biological property of the soil refers to the amount of microorganisms that are active within it. – Cations. Here’s the science bit. – Salinity.

What are soil properties?

Properties of Soil. Soil is often described using several characteristics including texture, structure, density, temperature, color, consistency, and porosity. One of the most important properties of soil is the texture. Texture is a measure of whether the soil is more like sand, silt, or clay.

What is soil property?

Soil physical properties are those related to the size and arrangement of solid particles, and how the movement of liquids and gases through soils is affected by the particles. Soil mineral particles are derived from the weathering of rocks and minerals.