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Soil Science
Definition and Concept of soil
Soil Science

Definition and Concept of soil

Musa May 7, 2018

Contents

  • 1 Definition and Concept of soil
    • 1.1 Concept of soil
    • 1.2 Definition of soil
      • 1.2.1 According to Buckman and Brady
      • 1.2.2 According to Joffe and Marbut
      • 1.2.3 According to Hilgard
      • 1.2.4 According to Raman 

Definition and Concept of soil

Concept of soil

The soil is the covering on the solid crust of the earth’s land mass. Soil is made up of broken down rock material of varying degree of fineness and changed in varying degrees from the parent rocks by the action of different agencies, such that the growth of vegetation is made possible (Fig. 1.1).
 
Concept of soil
 
There are two basic concepts of soil. The first pedology, considers soil natural entity, a biochemically weathered and synthesized product of nature such it’s the origin of the soil, its classification and its description involved in pedology. The second edaphology, conceives of the mil as a natural habitat for plant. Edaphology is the study of the soil from the standpoint of higher plants. It considers the various properties of soils as they relate to plant growth and production.
 

Definition of soil

Soil may be defined as-
 

According to Buckman and Brady

 
“A dynamic natural body on the surface of the earth in which plants glow, composed of mineral and organic materials and living forms.” — Buckman and Brady
 

According to Joffe and Marbut

 
“Soil is a natural body developed by natural forces acting on natural materials. It is usually differentiated into horizons from mineral and organic constituents of variable depth which differ from the parent material below in morphology, physical properties and constitutions, chemical properties and composition and biological characteristics.” — Joffe and Marbut
 

According to Hilgard

 
“Soil is the more or less loose and crumbly part of the outer earth crust in which, by means of their roots, plants may or do find foothold and nourishment as well as all other conditions essential to their growth.” — Hilgard
 

According to Raman 

 
“Soil is the uppermost weathered layer of the soil earth’s crust; it consists of rocks that have been reduced to small fragments and have been more or less changed chemically together with the remains of plants and animals that live on it and in it.” — Raman

You might interest more articles about Soil Science

Useful Agricultural Websites

Online Agricultural Study

Food and Agricultural Organization

United States Department of Agriculture

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About The Author

Musa

I'm studying plant pathology. I have completed my Bachelor of Science in Agriculture degree.

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