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Engineering HSC and IIT-JEE Mains an
advance videos. Hello students today will
be studying chapter Miceobes in human
welfare in that will be studying today
about biofertilizers when I say
biofertilizers bio means organic or
naturally available and fertilizers and
nothing but manuals which enrich the
nutrient nutrition content of a soil or
nutritive value of a soil now there are
various chemical fertilizers available
today we will be studying about
fertilizers which are present organic or
which are naturally available.
Biofertilizers Biofertilizers are easily
available that who knows cause any
pollution to the soil but what are this
bio fertilizers made up of bio
fertilizers are basically made up of
organisms it could be simple organisms
like earth moon which enrich the soil
quality when a bone is added into soil
it passes to the field and burrows the
soil or the field and in this process it
mixes all the nutrients of the soil it
enriches the soil quantity by the
biological activity microorganisms
increase the fertility or the
effectivity of the soil when you compare
with chemical fertilizers biofertilizers
do not cause any harm to the soil an
example of National bio fertilizers
which are available on microbial cases
would be sino bacteria one fungi and
different kinds of bacteria sino
bacteria is nothing but blue green agate
now this blue-green alga is naturally
present inside rice fields and in rice
fields it helps to transport nitrogen
while the rice crop is growing we all
know that rice crops means a lot of
water and nitrogen fixation in rice
lands is done by cyanobacteria while
adding nutrients this biofertilizers
increase other phytonutrients like
nitrogen phosphorus in the soil and the
crop grows very effectively
biofertilizers are the cheap source of
nitrogen fixing and well as phosphorus
fish fixing ailments available so let us
see how by for let's help
[Applause]
my offer glazes organisms that help to
enrich soil quantity and increase soil
fertility by their biological activity
it means organisms help the plant to
increase in phosphorus nitrogen content
naturally without causing any damage to
the crop of the field a dundas
biofertilizers main source of
biofertilizers are bacterium it could be
symbiotic or symbolic like a nabina not
stock etc fungi as well as cyanobacteria
this organisms president biofertilizers
causes nutritional content of soil to
increase rapidly this could be nitrogen
phosphorus and sulfur without causing
any damage to the crops or without
having any side effects on crop or crop
cycle they are cheap source of
fertilizer secondly they are much
effective than chemical fertilizers like
urea which cause a lot of damage to crop
cause pollution and even it is expensive
in this part of the chapter we have
studied how biofertilizers have helped
humankind and what are the great aspects
of bio fertilizer as compared to
chemical fertilizer I hope you all have
understood till early about this topic
thank you
