Which one of the following is not a biofertiliser?

Identify the correct statements regarding mycorrhiza:
$(1)$ Many members of the genus $Glomus$ form mycorrhiza.
$(2)$ It is responsible for all mineral absorption from the soil.
$(3)$ Such associations show benefits against drought and salinity in plants.
$(4)$ Mycorrhiza is a symbiotic association between fungi and roots of higher plants.

Which of the following is a biofertilizer reported to increase rice production by more than $50\%$?

Farmers have reported over $50\%$ higher yields of rice by using which of the following biofertilizer?

How do blue-green algae increase the fertility of the soil?

The main sources of biofertilisers are:
$(a)$ Bacteria
$(b)$ Cyanobacteria
$(c)$ Fungi
$(d)$ Protists