Laboratory method of soil textural classes, Science

Assignment Help:

Laboratory Method of Soil textural classes

The mechanical analysis methods have been used by USDA to develop a method for naming the textural class. This is depicted by a triangle shown in Fig. For a given composition of soil, the textural class can be named using this triangle.

 

1694_laboratory method.png

The sides of the triangle represent mass percentage of clay, silt and sand. The sum of the percentages of sand, silt and clay at any point in the triangle is 100.  To find the textural class on the basis of the mechanical composition of soil, the percentage of one of the separates (say clay) is first located in the diagram and projected towards the centre  of the triangle running parallel to the adjacent side. Similarly it is done for any of the other two separates, silt or sand. The point at which the two projections cross will identify the class name. Let us take an example to understand this. Suppose a soil has the following composition of the three separates, 35% clay, 25% silt and 40% sand, then we may use any two of the three values and use the above method to arrive at the soil textural class as indicated by pairs of green lines in the figure. This soil is an example of the class, 'clay loam'. You can verify this from Fig.

 


Related Discussions:- Laboratory method of soil textural classes

Semiconductor devices and their uses, Semiconductor Devices and their Uses:...

Semiconductor Devices and their Uses: If a junction  is formed between a p-type and an n-type'semiconductor,  the device called a p- n  junction diode acquires a peculiar pppen

Variables, please give me some variable for making of hypothesis

please give me some variable for making of hypothesis

Define the absorption of amino acid, Define the Absorption of Amino Acid ...

Define the Absorption of Amino Acid Proteins are absorbed in the form of amino acids. Amino acid transport occurs 'only in the presence of simultaneous sodium transport. Carrie

How complement system helps to handle microbial invasion, How Complement Sy...

How Complement System Helps To Handle Microbial Invasion 1)  Some components of a complement system coat microorganisms. These organisms with such a coat can be easily phagocyt

Genetics, my topic is QTL mapping of Aedes and Drosophila and I am not gett...

my topic is QTL mapping of Aedes and Drosophila and I am not getting proper information for making an assignment on it what should I do?

Natural resources, Natural resources: Resources, or the wealth nature h...

Natural resources: Resources, or the wealth nature has bestowed on us are essential for civilised living, and therefore, they have to be wisely used. However, it is believed th

Explain factors affecting viscosity of blood, Explain Factors Affecting vis...

Explain Factors Affecting viscosity of Blood Viscosity of blood affects the systemic blood pressure in the same way as changes in the peripheral resistance.  In anaemia, viscos

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd