Biofertilizer - Category Wise Question And Answer Practice Test With Solutions

Question : 6 [UPPCS (Pre) 2009]

The capability of nitrogen use efficiency can be increased in crop production by

a) Using the slow release of nitrogen fertilizer

b) Use of split application

c) Use of nitrogen inhibitors

d) All of the above

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Question : 7 [UP UDA/LDA (Spl)(Mains) 2010]

Azolla is

a) Aquatic bacteria

b) Aquatic Fern

c) Aquatic algae

d) None of the above

Answer »

Question : 8 [UPPCS (Pre) 2006]

Blue-green algae are chiefly used as biofertilizer in the crop of

a) Paddy

b) Wheat

c) Gram

d) Mustard

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Question : 9 [UPRO/ARO (Mains) 2014]

Aquatic Fern, which is used as a biofertilizer is

a) Marsilia

b) Salvinia

c) Azolla

d) Pteridium

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Question : 10 [PCS (Mains) 2002]

Which of the following is a biofertilizer?

a) Streptocycline

b) Urea

c) 2,4-D

d) Azolla

Answer »