Green Revolution Notes - CW13.ppt

7/25/2019 Green Revolution Notes - CW13.ppt

1/17

HE GREEN

HE GREEN

REVOLU IONEVOLU ION

(The Third(The Third

AgriculturalAgricultural

Revolution)Revolution)

And BiotechnologyAnd Biotechnology


2/17

HOMAS MAL HUS

HOMAS MAL HUS

1919ththcentury economistcentury economist

Believed that because population growsBelieved that because population grows

geometrically and food productiongeometrically and food productionarithmetically famine was inevitablearithmetically famine was inevitable

!lowing the growth of population was the only!lowing the growth of population was the only

possibility to prevent starvationpossibility to prevent starvation

"istory (so far) has proven #althus wrong


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4/17

POPULATION and FOOD PRODUCTION GROWTH

Percentage increases 1980-1990

$% &% 1$% 1&% '$% '&% ($% (&% )$% )&%

*+R ,A*-TA -.,R+A!+ -.

/00 *R02,T-0.

/00 *R02,T-0.

*0*23AT-0.

3,s #,s


5/17

-.,R+A!+ -. A4R-,23T2RA3 *R02,T-0. *+R ,A*-TA


6/17

GREEN REVOLU ION

REEN REVOLU ION

Adoption of new5Adoption of new5improved varieties ofimproved varieties ofgrainsgrains

Application of betterApplication of betteragriculturalagriculturaltechni6uestechni6ues -rrigation-rrigation

#echani7ation#echani7ation

2se of fertili7er2se of fertili7er

2se of pesticides2se of pesticides

!ince 19&$8s!ince 19&$8s

4reatest effect felt in4reatest effect felt in3,s3,s

Agricultural outputAgricultural output

outpaced populationoutpaced populationgrowth even withoutgrowth even withoutadding additionaladding additionalcroplandcropland

A c!"#e$ % i!"r&e!ents '(ic( great#)

increased agric*#t*ra# "rd*ctin


7/17

"+AT"+AT

#e:ico#e:ico

+gypt+gypt

Tur;eyTur;ey

R-,+R-,+

ThailandThailand


8/17

Green Revolution

reen Revolution


9/17

Green Revolution

reen Revolution

drawbac!rawbac!

/avored farmers who could afford seeds5/avored farmers who could afford seeds5inputs5 machines5 irrigationinputs5 machines5 irrigation

-ndebted farmers lost land5 moved to cities-ndebted farmers lost land5 moved to cities

.ew >monocrops? lac;ed resistance to.ew >monocrops? lac;ed resistance todisease@pestsdisease@pests

+nvironmental contamination5 erosion+nvironmental contamination5 erosion

0riented to e:port >cash crops5? not domestic0riented to e:port >cash crops5? not domesticfood


10/17

"iotec#nolo$%&

iotec#nolo$%&

U!in$ or$ani!'! to(!in$ or$ani!'! to(

#a;e or modify products#a;e or modify products

-mprove plants or animals-mprove plants or animals

evelop new microorganismsevelop new microorganisms

,rossing natural divides between species,rossing natural divides between species .ot ust crossbreeding.ot ust crossbreeding


11/17

Genetic En$ineerin$

enetic En$ineerin$


12/17

Geneticall% Modi)ied

eneticall% Modi)ied

Or$ani!'! *GMO+r$ani!'! *GMO+

Consumer concerns

began in Europe,

now in U.S. too


13/17

,RAN-EN,OO.S

RAN-EN,OO.S


14/17

G+N+TICALL, ODIFI+D CROP. - WORLDWID+

$

'$

$

$

C$

1$$

1'$

199 199D 199C 1999 '$$$

!i##ins%acres


15/17

4+.+T-,A33E #0-/-+ ,R0*! F '$$$

0thers5 9%

Argentina5 '%

2!A5 C%


16/17


17/17

"ovine Growt#

ovine Growt#

Hor'one *"GH+or'one *"GH+

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Green Revolution Notes - CW13.ppt