DEMO TOUR John Deere s780i / GR Konrad Pohl

364 İzlenme


General Properties of Soil

Soil; It is a natural, dynamic structure that consists of the decomposition products of bedrock and organic materials at various degrees, hosts a large community of living things, is a stopping place and food source for plants, and surrounds the uppermost part of the earth's crust. Soil is a substance that contains certain proportions of water and air.

Soil is a living entity that is constantly maturing and changing. Necessary for the growth and development of plants and living things living in the soil.

a) mineral substances,

b) organic substances,

c) water and

d) consists of 4 main elements, namely air.

 a) Mineral substances

Mineral substances in the soil are named according to their size. "Coarse gravel", 6-20 mm in size,

2-6 mm “Fine gravel”,

2-0.2 mm "Coarse sand",

0.2-0.02 mm "Fine sand",

0.02-0.002 mm ones are “Shaft”,

0.002-0.001 mm “Coarse clay”,

Those smaller than 0.001 mm are called “Colloidal clay”.

• The proportions of mineral substances that make up the soil in the soil according to their sizes are defined as "Texture".

• Soils in which particles smaller than 2 microns are high in "Clay,

• Soils with high mineral substances between 0.2-0.02 mm are called "Sandy" soils. Mineral substances contain many plant nutrients necessary for the nutrition of plants.


 b) Organic matter

They are solid substances formed as a result of the decomposition of plants and various living things living on and in the soil and their residues by microorganisms. It is noteworthy that the amount of organic matter in the soil is very low when compared to mineral substances. The amount of organic matter in agricultural soils varies between 1-12%. Organic matter in a normal field soil should be around 5% by volume. The soils of our country are very poor in terms of organic matter.


Our soils are poor in organic matter; It has emerged as a result of the effects of many controllable factors such as a) not paying attention to the crop rotation, b) choosing the wrong tillage time and methods, c) destroying the vegetation on the soil, d) burning the stubble, e) not using organic fertilization. Climatic factors such as high temperatures and insufficient precipitation, which continue to affect most of our country; The effects on the low organic matter of our soils are quite high.

Our soils are poor in organic matter; It is the result of the removal of stubble, which is the most important source of organic matter, from the soil by burning and the use of a large part of farm manure as fuel in the form of "Manure".

Tractor & Machinery
Henüz yorum yapılmamış. İlk yorumu siz yapın.