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Microbiology of Soils

Microbiology of Soils
Denitrification may be distinguished as

both (a) and (b)
dissimilative
blue baby syndrome
assimilative

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Microbiology of Soils
Which of the following is not the biofertilisers producing bacteria?

Both (a) and (b)
Anabaena
Nostoc
Clostridium

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Microbiology of Soils
Degree of compost maturity can be assesed by

both (a) and (b)
infrared technique
None of these
germination test

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Microbiology of Soils
The physical structure of soil is improved by the accumulation of

mold mycelium
water
minerals
all of these

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Microbiology of Soils
Which of the following statement is not true about composition of biogas?

It is composed almost exclusively of methane and carbon dioxide
Both (a) and (b)
It also contains with traces of H2S, N2, H2and CO
It also contains with traces of O2 and Cl2

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Microbiology of Soils
Which of the following fungi on infecting crop roots can improve their uptake of phosphorus and other nutrients?

VA Mycorrhiza
Aspergillus niger
Saccharomyces cerevisiae
Candida torulopsis

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