Which one of the following is not a biofertil | vedclass

Name: PDF Generator App | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(a) : Biofertilizers are organisms that enrich the nutrient quality of the soil. The main sources of biofertilizers are bacteria, fungi and cyanobacte

Vedclass · Accepted Answer

Agrobacterium

Vedclass · Answer

(a) : Biofertilizers are organisms that enrich the nutrient quality of the soil. The main sources of biofertilizers are bacteria, fungi and cyanobacteria. Rhizobium bacteria is found in the nodules on the roots of leguminous plants by symbiotic association. These bacteria fix atmospheric nitrogen into organic forms, which is used by the plants as nutrient. Fungi are also known to form symbiotic associations with plants called mycorrhiza. Cyanobacteria are autotrophic microbes widely distributed in an aquatic and terrestrial environments. Many of which can fix atmospheric nitrogen, $e.g.,$ Anabaena, Nostoc, Oscillatoria etc. But Agrobacterium tumefaciens is a pathogen of several dicot plants. It causes gall tumor in the plants.

Column - $I$	Column - $II$
$(a)$ Mycrrohiza	$(1)$ Rhizobium
$(b)$ Bt	$(2)$ Nucleopolyhydro virus
$(c)$ Root nodules	$(3)$ Phosphorus
$(d)$ Baculo virus	$(4)$ Bt -Cotton

Which one of the following is not a biofertiliser?

Similar Questions

Which organisms are used to increase thesoil fertility ?

The chemical fertilizer required for better rhizobial nitrogen fixation is

Assertion : Nitrogen-fixing enzyme in legume root nodules function at low oxygen concentration.

Reason : Low oxygen concentration is provided by leghaemoglobin.

Root nodules for nitrogen fixation of a non-leguminous tree possess

Match the columns :

Column - $I$ Column - $II$

$(a)$ Mycrrohiza $(1)$ Rhizobium

$(b)$ Bt $(2)$ Nucleopolyhydro virus

$(c)$ Root nodules $(3)$ Phosphorus

$(d)$ Baculo virus $(4)$ Bt -Cotton