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Env science
11. Agriculture
abiotic factors
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Cards (2)
hydroponics
growing crops in a
nutrient
solution rather than in soil
adv ->
no weeds
->
no soil
to hold
pathogens
disadv -> needs a
high level of technology
-> production involves
high inputs
of nutrients and energy
soil pH
ranges between
ph5
and
ph7
-> increased by adding crushed
calcium carbonate
-> decreased by spreading
powdered sulfur
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