are culture of microorganisms used for inoculating
seed or soil or both under ideal conditions to
increase the availability of plant nutrients.
Classification of Bio-fertilizers -
How to use the Bio-fertilizers
Biofertilizers are mixed with little water for
preparing slurry. In that slurry small quantity of
sugar or jaggary or gum is added so that the
inoculant may get energy for their prolonged
survival. The slurry is poured over the seeds which
should be kept in a container. The seed is mixed
well with the slurry by pouring the mixture into
another container. Thus by pouring fourth and back
into both containers the seed is nicely mixed with
inoculant. Now the treated seed should be dried in
cool and dry shady place and sown immediately in the
There are two methods.
Azolla can be used as green manure in rice field.
In this case Azolla
culture is inoculated in the main field about
15-20 days before transplanting of rice seedling
so that it can be incorporated in the field at the
time of puddling.
The nicely prepared field is divided into smaller
plots of 100 sq.m.
by raising bunds and
5-10 cm deep
water level is maintained
upto about 20-25 days after inoculation so
that a thick azolla
mat may be formed. After about 25 days of
inoculation when thick mat is formed, the water
level is reduced and azolla
mat is mixed into the soil while weeding.