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Benefits
Balanced fertilization has positive
effects on the environment.
Fertilizer use allows farmers to
continuously achieve high yields
on the same land for many years,
meaning that farmers don't need
to clear new land.
Fertilizers also help in preserving
land for wildlife.
Information found at:
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Costs
Chemical fertilizers sterilize the
natural minerals and nutrients
found in soils.
When it rains the fertilizer runs into
our drains contaminating our
water and killing fish.
http://www.agroservicesinternational.com/Environment/Benefits.html
http://wiki.answers.com/Q/The_effects_of_inorganic_fertilizers_on_the_
environment
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The three major nutrients for making
organic fertilizers are: nitrogen, phosphorus
and potassium (Lime is also used)
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Select a place to leave your leftovers (
You can also make a strong bin out of
wood, if you do, you must leave the lid
open to allow oxygen to fertilise it.)
Two items needed to make organic
fertilizers are green remains and brown
leaves and other leftovers. A part of the
green should have be mixed with two
parts brown and this mixing will go on until
it becomes damp.
First put a layer of leaves, that are 4 inches
thick and then put garden soil over the
top again and again, then add two
inches of green or brown leaves.
Mix well, with manure or a garden fork.
You can also add kitchen green leftover
and also eggshells to it. Mix the pile up
and down every week. Within two months
your natural fertilizer will be ready
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Information found at:
http://www.iloveindia.com/garden/garden-care/natural-fertilizers.html
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Advantages
The advantages of fertilizers
are perfect green lawns.
Fertilizers promote green
color, and lawn growth.
Fertilizers improve the
overall health of the lawn,
which also kill weeds, keeps
pests away, and improves
curb appeal.
Grass and flowers need
nutrients, sunlight and
water to carry out
photosynthesis. Fertilizers
help preserve nutrients.
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Disadvantages
Chemical Fertilizers put
acid into the soil, not letting
any plants near it
photosynthesise.
Strengthens pesticides.
Can burn the roots of
flowers and plants
Chemical fertilizer also get
a lot of water out of the soil
which it contaminates
water
It releases a green house
gas (nitrous oxide)
Information found at:
http://www.the-lawn-advisor.com/Advantages-of-Fertilizers.html
http://wiki.answers.com/Q/The_advantages_and_disadvantages_of_che
mical_fertilizers
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Recycling of carbon and nitrogen
Decaying recycles raw materials
and gets rid of waste at the same
time. Decay is the breaking down
of organic matter by decomposer
micro-organisms. Bacteria and
fungi feed on the organic
materials make energy. During this
process both carbon and nitrogen
are recycled. The carbon from
waste products is made into
carbon dioxide which plants need
for photosynthesis. Nitrogen from
proteins in dead or waste
products is changed to nitrates in
the soil which plants use to make
new proteins.
Information found at:
http://www.bbc.co.uk/scotland/education/bitesize/standard/biology/biotechn
ology/problems_and_profit_with_waste_rev4.shtml
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Glucose + Oxygen = Carbon Dioxide +
Water + Energy
http://www.bbc.co.uk/scotland/education/bitesiz
e/standard/biology/biotechnology/problems_and
_profit_with_waste_rev4.shtml
 http://www.the-lawn-advisor.com/Advantages-ofFertilizers.html
 http://wiki.answers.com/Q/The_advantages_and_
disadvantages_of_chemical_fertilizers
 http://www.iloveindia.com/garden/gardencare/natural-fertilizers.html
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http://www.agroservicesinternational.com/En
vironment/Benefits.html
http://wiki.answers.com/Q/The_effects_of_inor
ganic_fertilizers_on_the_environment