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AGRICULTURE:
Fertilizers
Three
major nutrients
nitrogen,
phosphorous and
potash
are used as synthetic
chemical fertilizers
in industrial
agriculture.
According to
the OECD, the
application of
these fertilizers
reflects
the specialisation
and intensification
of cropping practices.28
These
chemical fertilizers
pose a threat
to human health
and the environment,
particularly
with respect
to water quality.
Nitrates from
fertilizer can
accumulate in
groundwater and
can reduce the
ability of human
blood to carry
oxygen. Infants
are particularly
susceptible to
nitrate poisoning
a phenomenon
known as blue
baby syndrome.
Canadas
OECD Ranking
Canada ranks
25th out of 28
OECD nations
in terms of consumption
of commercial
fertilizers (both
on a per capita
and a total basis).
Canada used 90
kilograms of
commercial fertilizers
per capita in
1997. Only Australia,
New Zealand and
Ireland use more
fertilizer per
capita.
In
total, Canada
used 2,753,000
tonnes of commercial
fertilizers in
1997, with only
the United States,
France and Germany
using larger
amounts.
Trend
Canadian consumption
of commercial
fertilizers increased
by 42% between
1980 and 1997.
In contrast,
the OECD as a
whole experienced
a 10% decrease
in fertilizer
use. Nineteen
out of 28 OECD
nations decreased
their fertilizer
use between 1980
and 1997.
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