EVS final project review...docx

8/9/2019 EVS final project review...docx

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DETERMINATION OF PH OF SOIL SAMPLES FROM VARIOUS

PARTS OF CHENNAI.

A PROJECT REPORT

Submitted by:

Sujeet kumar 12bec1050

DIVYA 12BEC1077

For Project Based Learnn!

In CH" #$% AND ENVIRONMENTAL STUDIES

VIT UNIVERSIT" CHENNAI

No&e'(er) *$#*

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ABSTRACT

The study of dierent types of soil samples to determine the

type of plants that can be grown in them and also where they

can be found. In order to determine this we have used thebasis of pH of the soil by conducting experiments to nd out

the pH of dierent types soil samples!around 1"# collected by

us from dierent parts of $hennai including botanical gardens%

Tnagar% Tambaram% $entral %along with soils from dierent parts

of our campus.

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TABLE OF CONTENTS

1. 'ist of

(igures......................................................................................)

&. 'ist of Tables.......................................................................................)

*. Introduction........................................................................................+

,. -xperiment..........................................................................................

/im/pparatus re0uiredProcedureesultsInference$onclusion

). eferences..........................................................................................11

+. Photograph of thepro2ect..................................................................11

.

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LIST OF FIGURES:

a# Photograph of the experimentb# pH scale used for the comparison of colour

LIST OF TABLES:

a# Table of pH values of the samples on which theexperiment has been conducted.

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INTRODUCTION:

3oil properties largely determine the tree species that will growon a site. /mong the many soil properties% soil pH is one of the

most important. Soil pH provides a good indication of thechemical status of the soil and can be used in part to determinepotential plant growth.

SOIL pH:

Soil pH% by denition% is a measure of the activity of hydrogenions in the soil solution.

4eutral soils5 pH !+.)5.)# /cidic soils5pH 67+.) 8asic soils5pH97.)

:ost of the soils generally have a pH scale *5;.

IMPORTANCE OF SOIL pH:

3oil pH in.)# can ma=e some nutrientstoxic and others unavailable to plants. /t low pH levels !6,.)#%aluminum% iron% and manganese are very available for plantupta=e.

/t high pH levels !9.)#% calcium and potassium are overabundant. In these situations% many plants will ta=e up toomuch of these nutrients% while absorbing insu?cient amounts

of the others.

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In order to study the soil property of the samples collected byus we conducted an experiment to determine the pH of thesamples .The details of the experiment are as follows.

EXPERIMENT

AIM: To determine the pH of the soil samples.

APPARATUS REQUIRED:3oil 3amples% Indicator li0uid% distilled water% /luminiumsulphate % test tubes% test tube holders.

THEORY: The pH scale measures the acidity or the al=alinity of asubstance. The pH scale

goes from pH1 to pH1,. pH1 is the most acid% pH1, is the mostal=aline and pH is neutral !neither acid nor al=aline#.

pH1

pH&

pH*

pH,

pH)

pH+

pH

pH>

pH;

pH1"

pH11

pH1&

pH1*

pH1,

'iving things cannot tolerate a pH much above or below pH!neutral#.

PROCEDURE:

1. 3et up the apparatus as shown in the diagram below.

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!4@T-A The barium sulphate powder is neutral. It is included ineach tube to bind with the particles of soil so that they fall to

the bottom of the tube after it has been sha=en. This allows youto see the colour of the li0uid more easily.#

&. 3ha=e the test tube vigorously for a few seconds. !4@T-APlace your thumb over the rubber bung to stop it falling out.3ha=e until the soil sample completely mixes with the rest ofthe contents of the test tube.#

*. 'abel your test tube and replace it in the test tube rac=.'eave it until the contents have settled.

,. epeat the above steps with the three other soil samples.

). The colours of the li0uid in each of the four test tubes are tobe compared with the standards provided. /nd the records willbe recorded.

+. /lso determine the acidic and al=aline nature of thecorresponding soil samples from their pH values.

RESULTS:

Place from which

soil sample is

obtained

3pecications of the

place

3oil pH

1. Becorativeplats neargaCebo

*

&. 3oil used togrow grass

,

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INFERENCE:

3.4o. Place from which

soil sample isobtained

3pecications

of the place

3oi

lpH

/nalysis of

samples

1.Becorative plants

near gaCebo *3ince the soil is

acidic% decorative

plants that

re0uire very less

nutrients for their

growth. Erowth

of other plants isnot favourable.

&.3oil used to grow

grass in the

campus

, The soil being

acidic has fewer

nutrients

favourable for

growth of plants

and trees and soonly grass is

found in this

region.

*. 3oil near cric=et

ground

4o plants

grow 1 The soil is found

to be highly

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acidic and hence

none of the

plants grow in

this region.

,.Plants growing

near volleyball

ground

:ainly wild

grass found

* The soil in the

region is infertile

and dry% thus

only wild grass

grows.

).:ount road

!Teynampet#

4ear petrol

pump; The trees and the

plants in the area

have withered

leaves due to

high al=alinity in

the soil due to

petrochemicals

released. ItFs all

due to the lac= of

supply of

minerals and

instruments used

for boring can

aect their roots

and the supply of

water is not

enough.+.

3aidapet 4ear plants on

roadside > The plants on the

roadside are

mainly wild

plants and

shrubs that

re0uire less

water and more

al=aline salts for

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their growth and

/I P@''GTI@4 in

the area also

aects theirleaves.

. Deeva par=4o plants

found * The area is all

covered with

highly acidic soil

preventing the

growth of any

plants.

>.Euindy

roadside 1" ild grass and

plants are found

in this region.

;.oyahpettah

roadside Trees such as

neem and

shisham tree are

found and avariety of small

herbs and

shrubs.

1". :enamba==am 4earby airport ; The soil is

favourable for

growth of trees

such as peepal

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CONCLUSION:

$ollecting the soil samples and analysing them has taught usthe importance of various parameters !especially pH# in a soil

for the growth of plants and su?cient supply of nutrients fortheir growth. /lso we have observed the eect of topographyon a soil. (or e.g. the soil sample collected at the roadside isunt for growth of most plants except for wild grass which is0uite expected as there is no need for plants to be grown inthat area.

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PHOTOGRAPH OF THE PROJECT:

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REFERENCES:

httpAwww.lsuagcenter.com4rdonlyres*->,(*(5"8&+5,,-;5;)>B5*$*1$8;11-(B+;;+*3oilpH.pdf

httpAwww.extension.umn.edudistributionhorticulturecomponents1*15*5soilpH.pdf

httpAwww.wi=ipedia.com

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http://www.lsuagcenter.com/NR/rdonlyres/3E784F3F-0B26-44E9-958D-3C31CB911EFD/69963/SoilpH.pdfhttp://www.lsuagcenter.com/NR/rdonlyres/3E784F3F-0B26-44E9-958D-3C31CB911EFD/69963/SoilpH.pdfhttp://www.extension.umn.edu/distribution/horticulture/components/1731-3-soilpH.pdfhttp://www.extension.umn.edu/distribution/horticulture/components/1731-3-soilpH.pdfhttp://www.extension.umn.edu/distribution/horticulture/components/1731-3-soilpH.pdfhttp://www.extension.umn.edu/distribution/horticulture/components/1731-3-soilpH.pdfhttp://www.lsuagcenter.com/NR/rdonlyres/3E784F3F-0B26-44E9-958D-3C31CB911EFD/69963/SoilpH.pdfhttp://www.lsuagcenter.com/NR/rdonlyres/3E784F3F-0B26-44E9-958D-3C31CB911EFD/69963/SoilpH.pdf


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