Class 9 Exam > Class 9 Videos > Cropping Patterns and Crop Protection Management - Improvement in Food Resources, Class 9, Science
Cropping Patterns and Crop Protection Management - Improvement in Food Resources, Class 9, Science Video Lecture
FAQs on Cropping Patterns and Crop Protection Management - Improvement in Food Resources, Class 9, Science Video Lecture
| 1. What are cropping patterns and why are they important in crop protection management? |  |
Ans. Cropping patterns refer to the arrangement and sequence of different crops grown on a piece of land over a period of time. They are important in crop protection management as they help in reducing the risk of pest and disease outbreaks. By diversifying the crops, farmers can disrupt the life cycles of pests and reduce their population. Additionally, cropping patterns can also help in maintaining soil fertility and preventing nutrient depletion.
| 2. How can cropping patterns improve food resources? | |
Ans. Cropping patterns can improve food resources in several ways. Firstly, by growing a variety of crops, farmers can ensure a stable and diverse supply of food. Different crops have different nutritional profiles, and by growing a range of crops, a balanced diet can be achieved. Secondly, by practicing crop rotation, where different crops are grown in a sequence, soil fertility can be maintained, leading to better crop yields and healthier plants. Finally, cropping patterns can also help in conserving water resources by using water-efficient crops and reducing water wastage.
| 3. What are some common cropping patterns used in crop protection management? | |
Ans. There are several common cropping patterns used in crop protection management. Some examples include:
1. Crop rotation: This involves growing different crops in a specific sequence to disrupt pest and disease cycles and maintain soil fertility.
2. Inter-cropping: This involves growing two or more crops simultaneously in the same field. Inter-cropping can help in reducing pest attacks, utilizing resources efficiently, and improving overall productivity.
3. Mixed cropping: This involves growing two or more crops together in the same field without any distinct row arrangement. It helps in reducing the risk of complete crop failure and provides multiple harvests.
4. Strip cropping: This involves growing different crops in strips or bands. It helps in reducing soil erosion, conserving water, and managing pests and diseases effectively.
5. Relay cropping: This involves planting a second crop before the first crop is harvested. It maximizes land utilization and helps in managing pests and diseases by reducing the time gap between crops.
| 4. How does crop protection management contribute to sustainable agriculture? | |
Ans. Crop protection management plays a crucial role in sustainable agriculture. It helps in reducing the reliance on chemical pesticides, which can have harmful effects on the environment and human health. By adopting cropping patterns and integrated pest management techniques, farmers can minimize the use of pesticides and promote natural pest control methods. This not only protects the biodiversity and ecosystem but also ensures the long-term productivity of the land. Additionally, crop protection management practices such as crop rotation and soil conservation help in maintaining soil fertility, reducing soil erosion, and conserving water resources, thus contributing to the overall sustainability of agriculture.
| 5. How can crop protection management practices be integrated into small-scale farming? | |
Ans. Crop protection management practices can be integrated into small-scale farming through various approaches. Firstly, farmers can adopt crop rotation techniques to diversify their crops and reduce pest pressure. They can also implement inter-cropping and mixed cropping to maximize land utilization and minimize pest attacks. Additionally, small-scale farmers can use organic and biological pest management methods, such as the use of biopesticides, pheromone traps, and beneficial insects, to control pests and diseases naturally. Furthermore, farmers can receive training and support from agricultural extension services to learn about sustainable crop protection practices and access relevant resources and technologies.
Text Transcript from Video
hello friends this video on improvement
in food resources part 14 is brought to
you by exam viacom no more fear from
exam so with this we will end our
discussion on poultry farming so now we
will start the next topic that is fish
production no fish production is quite
straightforward fish is a what is the
purpose here purpose is nothing but fish
because fish is a protein rich diet it
has a lot of protein so often people
advice or those who are non vegetarian
they they prefer eating more of fish
because it is the most healthiest of all
of them because it has lesser content of
fat and more of protein right so it is a
protein reach that now how do we obtain
fish fishes are found in acquitting
medium in rivers ponds lakes oceans so
there those are the places where fishes
are found so how do we obtain fish from
there there are to be used to obtain
fish the first one is captured fishing
not as captured fishing the fisherman as
you would have seen fisherman go with
the fishing nets and catch fish from the
ponds on rivers so that is known as
capture fishing so here fish from
natural resources like pawns reverb and
sea and cut not only by a fisherman by
anybody using the fishing net something
right so you directly go to the natural
resources or the natural places where
fishes occur and you catch fishes so
that is called capture fishing you
directly obtain fish from its natural
place of occurrence
the other one is culture fishery what
does culture fishery it means
commercially raising fish in tanks or
enclosures now it was seen that the
demand of fish could not be met just by
capture fishing because when people went
to the natural resources and caught fish
that could not meet the demands of the
population so what they started doing
they started with culture officially
that is
they got few fishes and put them in a
tank
which has water now what will happen
those few fishes will start leaving in
that water they will reproduce give
birth to new fishes so that particular
tank will again become a source of
fishes so you get more fishes here so
this is a commercially raised area where
you get fishes so this is known as
culture fishery right so when this
captured fishing which happens from the
natural resources and what is culture
fishery wait which is which is
artificially created area where fishes
can reproduce and gives give us more
fish now there are two kind of fisheries
one is marine fisheries and the other
one is inland fisheries when I talk of
marine fisheries I'll be talking about
the fishes which are found in oceans and
seas when I talk of inland fisheries we
will be talking about the freshwater
features the fishes which are present in
ponds lakes rivers etcetera
so let us first talk about the marine
fisheries fishes which are found in
ocean or steam or sea water wouldn't
I'll name some of the popular marine
fishes I know this will sound very weird
for people I mean listen sound new to
people who are vegetarian but those who
are habituated with eating fishes you
must have heard many of these names for
example pomfrit it is the popular marine
fish mackerel tuna pet key prawns
oysters these are some of the popular
marine fishes which are found in oceans
and sea water so if you have ever been
to sea beaches you will see that the
food which you get around to that
locality would be one of these fishes so
when you when we talk of oysters
these oysters again they they contain
pearl inside them all if you know what
is pearl right we often use parenteral
reason right okay so this bones are
contained inside boy stirs so when
people catch oysters they take out the
pearl from inside the oyster and then
the oyster is used for eating purposes
so these are some of the popular marine
fishes
now how do we obtain marine fishes so
again the same method when is captured
fishing where people go using fishing
nets from the fishing boats so if you go
to some ocean or sea area you will see
that there are big boats which good to
almost towards the quite depends and
quite far away from the sea shore and
they using the fishing nets they catch
fishes so that is known as capture
fishing so this capture fishing means
they are catching fish directly from its
natural resource that is directly from
the sea another way to obtain varying
fishes is culture fishing that means you
actually take some marrying fishes put
them in some tank or something and then
you grow them there so what you do here
commercially raising my own fishes in
enclosed ocean of ocean or tanks or
enclosures with seawater but we need to
make sure that we are creating the
environment of a sea it is basically
like virtually creating a sea somewhere
else because the fishes are not aware of
how big the sea is they just know their
surroundings right so if you take that
fish and keep it in a small tank but the
tank also has the sea water the fish
will not distinguish much because then
again when it comes to the tank its
surroundings will still remain the same
because it has the same kind of water
again so now the fish will start getting
used to in that tank it will start to be
producing it will give more fishes so
that is how you can get more fishes
right that is called culture fishing so
these are the two bass so we can obtain
marine fishes by both the ways this
cultural fishing is often known as Mary
culture Mary the world Mary has come
from marine right so that is quite merry
culture know sometimes this Mary culture
is not only done in tanks and enclosures
sometimes it will also done in an
enclosed portion of the ocean maybe that
big ocean inside that ocean they will
enclose a small portion of the ocean
where they put some fishes and that will
be used for culture fishing so now let
us talk about inland fisheries so these
are the freshwater fishes which are
found in water resources like the
anoles ponds reservoirs and rivers now
not only inland fisheries we in order to
talk about the freshwater resources we
also talked about the brackish water
resources
what is brackish water brackish water is
a combination of seawater and freshwater
these are the places where oceans and
rivers meet
so you have a combination of seawater
and freshwater that is called brackish
water so brackish water is found in
estuaries and lagoons or raspberries
these are the areas where as I said
oceans and sea sorry oceans and rivers
meet so these are the cases where you
have brackish water so you can see
fishes in fresh waters as well as in
brackish water so both freshwater and
brackish water will fall and then inland
fisheries so some of the popular
freshwater fishes are car club silver
carp row whoo grass carp rigger and
wriggle so these are some of them inland
fishes right so generally it is seen
that at least in India this freshwater
fishes are comparatively cheaper when
compared to the Maryland fishes a
variety shazar pretty expensive right
now so so far we talked about when where
why why do we do the fish production
where do we find fishes and how do we
get fishes so now let us see how do we
obtain the freshwater fishes for inland
fisheries how to opt in these features
so again the first option was captured
fishing but here the yield of captured
fishing is not that great even though
people go with their fishing nets to
reverse or to pawns but the yield is not
that great because they are not very
there are not too many fishes available
there I mean when compared to the demand
right so the unit of capture fishing is
not that great as far as inland
fisheries is concerned
so for inland fisheries people mostly
depend on culture fishing that means the
same concept again as how it was Matt
mariculture now here it is aquaculture
that
mariculture which was derived from the
word meringue and this is aquaculture
aqua which means water the term aqua
means water so in this war do they do
few fish species I used in a single fish
pond selected such that they have
different food habits so I just in the
previous slide I named so many different
types of fishes right so for example
somebody will take some three varieties
in a row who Katla and silver card these
three varieties they'll take and they'll
put it in a small pond now they will
select the species in such a way that
they have different food habits why
because if all of them have the same
food habits there as the population will
keep increasing in that fish fish pond
everybody will start competing for the
same food so they will not get proper
nutrients now if they have different
food habits it will be independent even
though their population will keep
increasing some people will have some
requirement some they have some other
requirements so the nutrient requirement
will be fulfilled right so this is known
as culture fishing so for inland
fisheries the and as far as obtaining
fishes concerned we are more dependent
on culture fishing as compared to
capture fishing thank you please visit
www.payoor.com
to watch more videos attempt free online
test
get free study material find tutors and
mentors thank you once again
in food resources part 14 is brought to
you by exam viacom no more fear from
exam so with this we will end our
discussion on poultry farming so now we
will start the next topic that is fish
production no fish production is quite
straightforward fish is a what is the
purpose here purpose is nothing but fish
because fish is a protein rich diet it
has a lot of protein so often people
advice or those who are non vegetarian
they they prefer eating more of fish
because it is the most healthiest of all
of them because it has lesser content of
fat and more of protein right so it is a
protein reach that now how do we obtain
fish fishes are found in acquitting
medium in rivers ponds lakes oceans so
there those are the places where fishes
are found so how do we obtain fish from
there there are to be used to obtain
fish the first one is captured fishing
not as captured fishing the fisherman as
you would have seen fisherman go with
the fishing nets and catch fish from the
ponds on rivers so that is known as
capture fishing so here fish from
natural resources like pawns reverb and
sea and cut not only by a fisherman by
anybody using the fishing net something
right so you directly go to the natural
resources or the natural places where
fishes occur and you catch fishes so
that is called capture fishing you
directly obtain fish from its natural
place of occurrence
the other one is culture fishery what
does culture fishery it means
commercially raising fish in tanks or
enclosures now it was seen that the
demand of fish could not be met just by
capture fishing because when people went
to the natural resources and caught fish
that could not meet the demands of the
population so what they started doing
they started with culture officially
that is
they got few fishes and put them in a
tank
which has water now what will happen
those few fishes will start leaving in
that water they will reproduce give
birth to new fishes so that particular
tank will again become a source of
fishes so you get more fishes here so
this is a commercially raised area where
you get fishes so this is known as
culture fishery right so when this
captured fishing which happens from the
natural resources and what is culture
fishery wait which is which is
artificially created area where fishes
can reproduce and gives give us more
fish now there are two kind of fisheries
one is marine fisheries and the other
one is inland fisheries when I talk of
marine fisheries I'll be talking about
the fishes which are found in oceans and
seas when I talk of inland fisheries we
will be talking about the freshwater
features the fishes which are present in
ponds lakes rivers etcetera
so let us first talk about the marine
fisheries fishes which are found in
ocean or steam or sea water wouldn't
I'll name some of the popular marine
fishes I know this will sound very weird
for people I mean listen sound new to
people who are vegetarian but those who
are habituated with eating fishes you
must have heard many of these names for
example pomfrit it is the popular marine
fish mackerel tuna pet key prawns
oysters these are some of the popular
marine fishes which are found in oceans
and sea water so if you have ever been
to sea beaches you will see that the
food which you get around to that
locality would be one of these fishes so
when you when we talk of oysters
these oysters again they they contain
pearl inside them all if you know what
is pearl right we often use parenteral
reason right okay so this bones are
contained inside boy stirs so when
people catch oysters they take out the
pearl from inside the oyster and then
the oyster is used for eating purposes
so these are some of the popular marine
fishes
now how do we obtain marine fishes so
again the same method when is captured
fishing where people go using fishing
nets from the fishing boats so if you go
to some ocean or sea area you will see
that there are big boats which good to
almost towards the quite depends and
quite far away from the sea shore and
they using the fishing nets they catch
fishes so that is known as capture
fishing so this capture fishing means
they are catching fish directly from its
natural resource that is directly from
the sea another way to obtain varying
fishes is culture fishing that means you
actually take some marrying fishes put
them in some tank or something and then
you grow them there so what you do here
commercially raising my own fishes in
enclosed ocean of ocean or tanks or
enclosures with seawater but we need to
make sure that we are creating the
environment of a sea it is basically
like virtually creating a sea somewhere
else because the fishes are not aware of
how big the sea is they just know their
surroundings right so if you take that
fish and keep it in a small tank but the
tank also has the sea water the fish
will not distinguish much because then
again when it comes to the tank its
surroundings will still remain the same
because it has the same kind of water
again so now the fish will start getting
used to in that tank it will start to be
producing it will give more fishes so
that is how you can get more fishes
right that is called culture fishing so
these are the two bass so we can obtain
marine fishes by both the ways this
cultural fishing is often known as Mary
culture Mary the world Mary has come
from marine right so that is quite merry
culture know sometimes this Mary culture
is not only done in tanks and enclosures
sometimes it will also done in an
enclosed portion of the ocean maybe that
big ocean inside that ocean they will
enclose a small portion of the ocean
where they put some fishes and that will
be used for culture fishing so now let
us talk about inland fisheries so these
are the freshwater fishes which are
found in water resources like the
anoles ponds reservoirs and rivers now
not only inland fisheries we in order to
talk about the freshwater resources we
also talked about the brackish water
resources
what is brackish water brackish water is
a combination of seawater and freshwater
these are the places where oceans and
rivers meet
so you have a combination of seawater
and freshwater that is called brackish
water so brackish water is found in
estuaries and lagoons or raspberries
these are the areas where as I said
oceans and sea sorry oceans and rivers
meet so these are the cases where you
have brackish water so you can see
fishes in fresh waters as well as in
brackish water so both freshwater and
brackish water will fall and then inland
fisheries so some of the popular
freshwater fishes are car club silver
carp row whoo grass carp rigger and
wriggle so these are some of them inland
fishes right so generally it is seen
that at least in India this freshwater
fishes are comparatively cheaper when
compared to the Maryland fishes a
variety shazar pretty expensive right
now so so far we talked about when where
why why do we do the fish production
where do we find fishes and how do we
get fishes so now let us see how do we
obtain the freshwater fishes for inland
fisheries how to opt in these features
so again the first option was captured
fishing but here the yield of captured
fishing is not that great even though
people go with their fishing nets to
reverse or to pawns but the yield is not
that great because they are not very
there are not too many fishes available
there I mean when compared to the demand
right so the unit of capture fishing is
not that great as far as inland
fisheries is concerned
so for inland fisheries people mostly
depend on culture fishing that means the
same concept again as how it was Matt
mariculture now here it is aquaculture
that
mariculture which was derived from the
word meringue and this is aquaculture
aqua which means water the term aqua
means water so in this war do they do
few fish species I used in a single fish
pond selected such that they have
different food habits so I just in the
previous slide I named so many different
types of fishes right so for example
somebody will take some three varieties
in a row who Katla and silver card these
three varieties they'll take and they'll
put it in a small pond now they will
select the species in such a way that
they have different food habits why
because if all of them have the same
food habits there as the population will
keep increasing in that fish fish pond
everybody will start competing for the
same food so they will not get proper
nutrients now if they have different
food habits it will be independent even
though their population will keep
increasing some people will have some
requirement some they have some other
requirements so the nutrient requirement
will be fulfilled right so this is known
as culture fishing so for inland
fisheries the and as far as obtaining
fishes concerned we are more dependent
on culture fishing as compared to
capture fishing thank you please visit
www.payoor.com
to watch more videos attempt free online
test
get free study material find tutors and
mentors thank you once again
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