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

Hypothesis, Hypothesis: The next step is to formulate hypothesis. A  hy...

Hypothesis: The next step is to formulate hypothesis. A  hypothesis is a statement, put forward on the basis of reasoning, about the things that are being studied. It is an att

Explain the sensory decussation - feature of medulla, Explain the Sensory D...

Explain the Sensory Decussation - Feature of Medulla Some of the sensory nerves ascending to the cerebrum from spinal cord cross from one side to the other in the medulla. Card

Describe physical properties of amino acid, Physical Properties of Amino ac...

Physical Properties of Amino acid:- Solubility : Amino acids are readily soluble in water, slightly soluble to insoluble in ethanol and insoluble in ether. Tyrosine  is solubl

Iodine value, taken two oil samples A&B ,1st reaction A iodine value will b...

taken two oil samples A&B ,1st reaction A iodine value will be high and reichert meissl value will be low,and then 2nd reaction B iodine value low but reichert meissl value is high

Age related differences in erythropoiesis, Age Related Differences in Eryth...

Age Related Differences in Erythropoiesis 1. During intrauterine life, in the early embryo, erythropoiesis occurs in the mesoderm (the middle of the three germ layers of an emb

Wiring a plug to an appliance, WIRING A PLUG TO AN APPLIANCE In the...

WIRING A PLUG TO AN APPLIANCE In the previous activity, you worked out the operating current of different electrical equipment/appliances and suggested proper fuse and plug

State about the active soil formers, Active Factors or Active Soil Formers ...

Active Factors or Active Soil Formers        It has been recognized for many years that climate  is one of the major state factors controlling soil formation. Soil climate regi

Career query, Hello sir, This is pradeep. I have completed M.Sc Biochemist...

Hello sir, This is pradeep. I have completed M.Sc Biochemistry since then i worked as a chemist in quality control department in pharmaceutical and cosmetic companies. I have co

Kinetic energy, How is energy from food and energy from gasoline different?...

How is energy from food and energy from gasoline different?

Explain the function of saliva -taste, Explain the Function of Saliva -Tast...

Explain the Function of Saliva -Taste Food substances, mixed with saliva stimulate the taste buds. Saliva acts as a solvent and is essential for the sensation of taste.

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