biofertilizer - Category wise Question and Answer Practice Test with Solutions

Question : 11 [UPPCS (Mains) 2009]

Which of the following is a source of biofertilizer?

a) Azolla

b) Yeast

c) Chlorella

d) Mold

Question : 12 [PCS (Pre) 2007]

Azolla gives a good biofertilizer when mixed with

a) Cow dung

b) Blue-green algae

c) Bone meal

d) Urea

Question : 13 [UP (Pre) 2003]

Which of these is not correctly matched?

a) Bio 902 - Variety of mustard

b) Blue-green algae - Biofertilizer

c) Chrysopa - Maho-control

d) Azotobacter – Bioinsecticide

Question : 14 [PSC (Pre) 2016]

The biofertilizer used as a supplemenatry food for the cattle, especially for milking bovinces is

a) Azotobacter

b) Azospirillum

c) Azolla

d) Rhizobium

Question : 15 [UPPCS (Mains) 2010]

Blue-green algae is used to supply nitrogen to

a) Paddy

b) Bajra

c) Maize

d) Wheat