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SOIL AND IRRI > IRRI > Flashcards

IRRI Flashcards

1
Q

ratio of amount of water stored in the rootzone due to irrigation application to the amount of water delivered or applied to the area

A

Application Efficiency

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2
Q

ratio of amount of water delivered by a distribution system to the ratio of amount of water introduced into the distribution system

A

Conveyance efficiency

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3
Q

ratio of amount of water beneficially used to the amount of water delivered or applied to the area

A
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4
Q

Net Depth of Application

A

Dn= MAD(AWHC)drz

Dn=MAD(FC-PWP)drzAs

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5
Q

Gross depth of application

A

Dg=Dn/Ea

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6
Q

Irrigation Perion

A

DgA/Q

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7
Q

Irrigation Interval

A

Dn/ETcrop

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8
Q

LSR

A

LSR=(n-RMCxAs)drz/t

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9
Q

LPWR after LSR

A

LPWR= SnP+E+SW

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10
Q

LPWR for entire land preparation

A

LPWR= LSR+SnP+E+SW

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11
Q

Crop water requirement

A 
CWR= Etcrop+P
Etcrop = kcEto
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12
Q

FIR during land prep

A

LPWR-ER

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13
Q

FIR after transplanting

A

FIR=CWR-ER

1LPS/ha = 8.64 mm/day

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14
Q

FWR

A

FWR= FIR/Ea

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SOIL AND IRRI (4 decks)

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