UNIVERSIDAD TÉCNICA DE MANABÍ

 RESEARCH WORK
TYPES OF SOIL

INTEGRANTS:

Cusme María Agustina   Fernández Vélez Jorge   Vásquez Carreño Boris   Cedeño Zambrano Miguel 

Lcda. MARTHA CASTRO QUIROZ MG. EII.

ENGLISH TEACHER

MAY – SEPTEMBER 2015

GENERAL OBJECTIVE:

To know the different types of soils we have in our province and their principal characteristics.

SPECIFIC OBJECTIVE:

To determine the nutritional status of soils to be used as a diagnostic tool for fertilizing.

INTRODUCTION:

The soils change much from one place to another. The chemical composition and physical structure of the soil in a given place are determined by the type of geological material from which it originates, of the vegetation cover in the amount of time that has acted weathering, by topography and by artificial change resulting from human activities. Soil variations in nature are gradual, except those arising from natural.

Definition of Soil:

It is the outermost layer of the earth's crust, resulting from the decomposition of rocks by sudden changes in temperature and by the action of water, wind and living beings. The process by which the rock fragments are becoming smaller and smaller, will dissolve or form new compounds, known as weathering.

SILTY SOIL

Silty soils are those that contain too much silt. The silt (Limo in Spanish) is a type of very thin material that has been taken to a place through rivers or dragged by watching or rain. It gives the example of silt soil which occupies the valley of the Nile.

It is a type of very compact soil without turning it as much as clay soils. These soils are produced by sedimentation of very fine materials carried by water or wind deposited.

SANDY SOIL

Composed mainly of sand does not retain water.

It consists of 75% sand, they have good water absorption but have the ability to retain therefore also retains the nutrients needed by plants which are driven into the ground, has high concentrations of salts such as calcium potassium magnesium and sodium.

HUMIFERO SOIL

Abundant decomposed matter, they retain water well and are good for cultivation.

Humifero means that is rich in humus containing substance decomposed organic materials) in this type of soil annelids are worms which made holes allow the soil to absorb water and minerals is.

CLAY SOIL

Clay soils are those that are composed mainly of clay is hydrated aluminum silicate.

It is a type of soil that is sticky when wet but when dry is very fine and smooth because the clay is made up of particles of less 0.005 millimeters in diameter.

CALCAREOUS SOILS

This type of soil contains enters 12 to 30% calcium carbonate, is very unstable tends to dry very quickly are very dry and does not retain trace elements, contain a lot of limestone, is a mineral of many that can be found in different soil types.

CONCLUSSION:

Soil is a renewable resource, but its recovery warrants periods of time, which means you must make proper use of them in order to protect them.

RECOMMENDATION:

In our planet we have 12 different types of soil. Each one of them needs a different treatment and farmers should know about these practices.  How a farmer manages the farm can have crucial impacts in the environment. Unfortunately, many of the farmers are not familiar with these information. Many times poor water management can lead to severe contamination on near by watersheds.  We need to remember that farming is a complex process that also needs studying and a constant exchange of information.