INCREASING CROP IELDDS
Artificially create ideal conditions
Recap of photosynthesis :
photosynthesis
carbon dioxide + water light Glucose +
Oxygen using glasshouses or polytunnels
Chlorophy 11
6CO2 6Hz0 CH , 206 602 plants being enclosed (in a glasshouse) he
photosynthesis is an important process as it turns light energy into chemical to prevent pests and diseases
energy , which is stored in the glucose ; this energy is then released farmers can control the water supplied
when the glucose is broken down during respiration
. to the crops
Recap of rate of photosynthesis : some farmers supply artifical light
light :
after the sun goes down to give their
Chlorophyll uses light energy to perform photosynthesis : the rate of plants more time to photosynthesise
↳ this
Photosynthesis is relative to the light intensity//energy can be especially useful in
↳ if the light intensity is increased , the rate of photosynthesis Winter when there is not as much
but only up to a certain point as the temperature/CO2 sunlight throughout the day
will become the limiting factor glasshouses traps the Sun's heat to
Carbon dioxide :
keep the plants warm
↳ during the winter
similarly ,
too little carbon dioxide also slows down the rate of ,
some farmers
Photosynthesis , However , CO2 is a raw material and only 0 04 %
.
use heaters to maintain an ideal
Of the air so it is a fairly scarce resources temperature
temperature :
·
the level of carbon dioxide can be incre
temperature affects the rate of photosynthesis as it affects by using a paraffin heater which relea
the enzymes involved ; the temperature increasing will increase carbon dioxide as a by-product as it bu
the rate of photosynthesis up to a certain point when it ALL OF THE ABOVE FACTORS IMPROVE THE
,
becomes too not (around 45C) , the enzymes will denature ENVIRONMENT FOR THE PLANTS ,
THEREFOR
and the rate of photosynthesis will rapidly decrease PLANTS WILL GROW BIGGER FASTER , AND
CROP YIELDS WILL BE HIGHER
-
Importance of fertilizer
plants need specific minerals , potassium and phosphorus so important compounds like proteins
·
,
e .
. Nitrogen
g that .
↳
If these plants don't get the minerals they need , their growth and life processes are affected
sometimes these minerals are missing from the soil due to past crops so fertilizers are used to replace those miner
Pest control
·
pests include microorganisms ,
. There
insects and mammals (e g rats) - .
are various methods of pest control therefore fewer plants are
damaged/destroyed , increasing the crop yield
.
pesticides chemical form of pest control they're often poisonous amount used controlled so that
·
are a and to humans so the has to be the
amount of pesticide is at a safe level .
Additionally ,
some pesticides also harm other wildlife
.
·
An alternative to using pesticides is biological control : it uses other organisms to reduce the numbers by encouraging Wild orga
isms OR adding new ones Helpful organisms can be . ladybirds eating aphids (AND
predators (e g parasites (e g flies laying e
.
. .
.
On slugs , eventually killing them off AND disease-causing (e g . .
bacteria that affect caterpillars -
this form of control is les
intrusive to wildlife and can have a long lasting effect ,
however , they can also cause problems (e g came toads that
.
we
=> introduced to eat peetles but then became a best that poisoned the native species
.
Artificially create ideal conditions
Recap of photosynthesis :
photosynthesis
carbon dioxide + water light Glucose +
Oxygen using glasshouses or polytunnels
Chlorophy 11
6CO2 6Hz0 CH , 206 602 plants being enclosed (in a glasshouse) he
photosynthesis is an important process as it turns light energy into chemical to prevent pests and diseases
energy , which is stored in the glucose ; this energy is then released farmers can control the water supplied
when the glucose is broken down during respiration
. to the crops
Recap of rate of photosynthesis : some farmers supply artifical light
light :
after the sun goes down to give their
Chlorophyll uses light energy to perform photosynthesis : the rate of plants more time to photosynthesise
↳ this
Photosynthesis is relative to the light intensity//energy can be especially useful in
↳ if the light intensity is increased , the rate of photosynthesis Winter when there is not as much
but only up to a certain point as the temperature/CO2 sunlight throughout the day
will become the limiting factor glasshouses traps the Sun's heat to
Carbon dioxide :
keep the plants warm
↳ during the winter
similarly ,
too little carbon dioxide also slows down the rate of ,
some farmers
Photosynthesis , However , CO2 is a raw material and only 0 04 %
.
use heaters to maintain an ideal
Of the air so it is a fairly scarce resources temperature
temperature :
·
the level of carbon dioxide can be incre
temperature affects the rate of photosynthesis as it affects by using a paraffin heater which relea
the enzymes involved ; the temperature increasing will increase carbon dioxide as a by-product as it bu
the rate of photosynthesis up to a certain point when it ALL OF THE ABOVE FACTORS IMPROVE THE
,
becomes too not (around 45C) , the enzymes will denature ENVIRONMENT FOR THE PLANTS ,
THEREFOR
and the rate of photosynthesis will rapidly decrease PLANTS WILL GROW BIGGER FASTER , AND
CROP YIELDS WILL BE HIGHER
-
Importance of fertilizer
plants need specific minerals , potassium and phosphorus so important compounds like proteins
·
,
e .
. Nitrogen
g that .
↳
If these plants don't get the minerals they need , their growth and life processes are affected
sometimes these minerals are missing from the soil due to past crops so fertilizers are used to replace those miner
Pest control
·
pests include microorganisms ,
. There
insects and mammals (e g rats) - .
are various methods of pest control therefore fewer plants are
damaged/destroyed , increasing the crop yield
.
pesticides chemical form of pest control they're often poisonous amount used controlled so that
·
are a and to humans so the has to be the
amount of pesticide is at a safe level .
Additionally ,
some pesticides also harm other wildlife
.
·
An alternative to using pesticides is biological control : it uses other organisms to reduce the numbers by encouraging Wild orga
isms OR adding new ones Helpful organisms can be . ladybirds eating aphids (AND
predators (e g parasites (e g flies laying e
.
. .
.
On slugs , eventually killing them off AND disease-causing (e g . .
bacteria that affect caterpillars -
this form of control is les
intrusive to wildlife and can have a long lasting effect ,
however , they can also cause problems (e g came toads that
.
we
=> introduced to eat peetles but then became a best that poisoned the native species
.
