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 is meant by the term chemical properties of soil?
Chemical properties broadly describe the fertility of a soil, the amount and availability of nutrients for plant growth . Chemical properties also include contaminants and toxic elements. These are the most commonly measured chemical properties, and why they are important: pH.
What are the chemical properties?
A chemical property is a characteristic of a particular substance that can be observed in a chemical reaction . ... A chemical change or reaction is a process in which one substance changes to another substance. In this process, the characteristics of the substances change, and this is when chemical properties are observed.
What are some chemical properties of soil?
- 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 physico chemical properties of soil?
In this study, the physicochemical characteristics of artificial soil were measured, as well as their interrelationships. Soil properties, such as bulk density, porosity, pH value, cationic exchange capacity (CEC) , soil organic carbon (SOC), and moisture content are closely related to soil quality.
What are the 6 physical properties of soil?
The main physical soil properties are depth, temperature, texture, structure, bulk density and water-holding capacity . The main processes involved are infiltration, tillage, compaction, percolation, leaching, runoff and erosion (Fig. 6.1).
What are properties of soil?
All soils contain mineral particles, organic matter, water and air. The combinations of these determine the soil’s properties – its texture, structure, porosity, chemistry and colour .
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.
What are the soil physical properties?
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 chemical properties of black soil?
- 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 5 chemical properties?
Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types) , and heat of combustion.
What are 5 chemical properties matter?
- Reactivity with other chemicals.
- Toxicity.
- Coordination number.
- Flammability.
- Enthalpy of formation.
- Heat of combustion.
- Oxidation states.
- Chemical stability.
How do you identify a chemical property?
A chemical property describes the ability of a substance to undergo a specific chemical change. To identify a chemical property, we look for a chemical change . A chemical change always produces one or more types of matter that differ from the matter present before the change.
Is soil organic matter a chemical property?
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 chemical name of soil?
| Name Chemical formula | Secondary minerals | Clay mineralsa | Kaolinite Si 4 Al 4 O 10 (OH) 8 |
|---|
What is the chemical structure of soil?
Soil organic matter is composed chiefly of carbon, hydrogen, oxygen, nitrogen and smaller quantities of sulfur and other elements .
