drip presentation

7/26/2019 DRIP Presentation

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WELCOME


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DRIP/TRICKLE

IRRIGATION

Submitted To :

Dr.K.Avil Kumar

Principal Scientist

(Agronomy)

Water Technology entre


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DRIP/TRICKLE IRRIGATION

INTRODUCTION:

In drip irrigation water Is applied

fre!entl" at lower rates fro# a lowpress!re deli$er" s"ste#%

It is an e&'ient irrigation #et(od of re'ent

origin%

W(i'( is )e'o#ing pop!lar in Areas of

Water Scarcity and poor water


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De$elop#ent of DripIrrigation

+se of drip irrigation 'an )e tra'ed )a', to

an'ient '!sto# of irrigating T!lsi plant wit(

eart(en pot (!ng a)o$e t(e plant%

D!ring earl" -.01s Israeli engineer na#ed

Sy$c% &"ass de$eloped t(is 'on'ept%

2rea, t(ro!g( of Drip irrigation is a'(ie$ed

wit( in$ention of Po"yet%y"e'e in -.34%


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Earlier Low Densit" Pol" Et("lene5LDPE6

Prod!'ed at relati$el" (ig( press!res 5!p to3400,g/'#76 were !sed%

Later 8ig( Densit" Pol" Et("lene 58DPE6

Prod!'ed at low press!res 570,g/'#76 'a#e

into !sage%

T(en Linear Low Densit" Pol"Et("lene5LLDPE6 Materials were !sed )e'a!se

of i#pro$ed strengt( 9stress 'ra', resistan'e%


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Ad$antages of Dripirrigation

8ig(er 'rop "ields%

I#pro$ed !alit" of (ar$ested

prod!'e%

*a$ings in Irrigation Water%

In'reased e&'ien'" in fertili:er !se

Red!'ed energ" 'ons!#ption


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Toleran'e to wind" at#osp(eri'

'onditions%

Red!'ed la)o!r 'ost

I#pro$ed disease and pest 'ontrol

;easi)ilit" of irrigating !nd!lating terrain% *!ita)le for pro)le# soils


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I#pro$ed toleran'e to salinit"

Pro#otes 'ongenial soil p("si'al 'onditions

In root :one

Eas" in operation

;a'ilitates a!to#ation Adapted to irrigate 'rops in green (o!ses%


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Appli'ation of Drip In India

In earl"


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Pro#otional eBorts )"Go$ern#ent

In India 9state and 'entral go$t are

pro$iding s!)sid" to far#ers of

diBerent so'ial 'o##!nities to adopt

drip irrigation%

Go$t (as allotted 740'rores in $iii plan%

And 3


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Classi='ation

Drip irrigation 'an )e )roadl"

'lassi=ed )ased on I'sta""atio'

and Locatio' of (rip "atera"s#

I% *!rfa'e drip irrigation s"ste#

II%*!) s!rfa'e drip irrigation s"ste#


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*!) s!rfa'e drip irrigation

s"ste# Dept( rangesfro# 70?0'#

Mains 9*!) #ainslaid )elow ?0'#s

*pa'ing oflaterals ranges

fro# %74 to 4 #9depending onspa'ing of 'rops%


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Co#ponentsof Drip irrigations"ste#


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Drippers

It is e#itter =tted to a drip irrigation

lateral

It 'ontrols Fow fro# lateral%

It red!'es inlet press!re (ead in

lateral pipe line

Drippers are 'lassi=ed )ased on

operating press!re9 dis'(arge rate%


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On operating press!relow @)elow0%>#

#edi!#@74# 8ig( @>

-4#

Dis'(arge rate low @lit/(a

#edi!#@-0lit/(a

8ig(@-4lit/(a


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Point so!r'e drippers

T(e point on gro!nd at w(i'( water is

dis'(arged is 'alled E#ission point%

Most if point so!r'e drippers are eit%er

O'"i'e e#itters @installed on lateral wall

ori'"i'e e$itters @installed wit(inlaterals


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Online drippers


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Distri)!tion s"ste#

Main lines

PC 98DPE pipes were !sed%

!ndergro!nd

dia#eter ?4## and a)o$e

press!re -0(g/s


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*!) #ains

PC/8DPE/LDPE pipes

dia#eter 37


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Laterals

LDPE/LLDPE 9PC #aterials

-070## dia#eter

Wall t(i',ness -3##

Press!re 7%4,g/s%'#

it s(o!ld )e Fei)le9 non 'orrosi$e9

and resistant to !%$ ra"s%


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Pipe line a''essories H=ttings

Co##on =ttings 9El)ows9 TEE*9Crosses9!nions9pl!gs9end 'aps

;or oining PC98DPE si:es of'o!pling tees9 el)ows9 )ends

A''essories in'l!de end pl!gs9 oints


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Gra$e /sand =lters

;re!entl" 'alled as #edia =lters

La"ered )eds of graded sand H gra$elin one or #ore '"lindri'al tan,s%

Pri#ar" =ltration of irrigation water isne'essar"%

Dia#eter of =lter tan,s 70700'#

Coated wit( )*+,*$icro' t%ic-."!e po"yester pow(er#


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*'reen =lter

;itted in series wit( #edia =lter to

re#o$e *olid i#p!rities li,e ;ine

sand9 d!st9 fro# irrigation water%

It s(o!ld )e 'oated wit( 0#i'rn

t(i', deep 'olored pol"ester%


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*'reen =lter


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8"dro'"'lones

Also 'alled as Centrif!gal sandseparators%

In t(is d!e 'entrif!gal for'e s!spended

s!)stan'es are re#o$ed%

In t(is water inlet is tangential to top'o#e and 'reates 'ir'!lar #otion 9all

(ea$" parti'les are t(rown o!t% Clean water rises !p in spiral #otion to

o!t let%


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8"dro'"'lones


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P!#ping !nit

ol!te 'entrif!gal p!#p

erti'al t!r)ine p!#ps

*!)#ersi)le p!#ps


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Disad$antages

E#itter 'logging

as o!tlets s#all 'logged wit( sand 9silt

red!'ed e#ission rates leads to poor!nifor# appli'ation

prolonged 'logging da#ages 'rop

interr!pts irrigation water appli'ation%


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Restri'ted root de$elop#ent o'rops

Wets onl" part of root :one

Root distri)!tion to #oist :one onl"

Con'entrated roots 99la',s sta)ilit" to

wit( stand strong winds%

Cant wit(stand to dro!g(t%


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*alt a''!#!lation at root:one

*alts a''!#!late towards perip(er"

As root :one (as 'onstant #oist!re it#a" i#pa't 'rops in net season%

If plants planted in soil pat'(es itaBe'ts 'rop%

*alts #!st )e lea'(ed o!t )eforesowing of net 'rop%

Or arti='ial lea'(ing is pra'ti'ed%


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Da#age fro# rodents andot(er ani#als

Rats and s!irrels da#age s!)s!rfa'e dripirrigation s"ste#%

*o#e inse'ts )!ild 'o'oons in e#itter o!tlets%

*o repellents #!st )e !sed to 'ontrol rats% Rats do not 'ross wet s!rfa'e9 so it is ad$ised

to wet )orders of =elds%

Ants 'an )e 'ontrolled wit( '(lorinated

("dro'ar)ons% Laterals wit( 0%3>## t(i',ness to 'ontrol

da#age%


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8ig(est 'ost of drip

Large !antities of pipping9=ltration9,its are e#plo"ed%

In steep terrain press!re reg!lators#!st )e e#plo"ed%

Cost o$erweig( )ene=ts at initialti#es%

It 'osts a)o!t ?09000, to esta)lis(drip irrigation s"ste# per a're%


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