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Microbiology of Soils

Microbiology of Soils
Degree of compost maturity can be assesed by

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

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Microbiology of Soils
Which of the following species of different genera of bacteria are not capable of transforming nitrate to nitrogen?

None of these
Alcaligenes
Agrobacterium
Achromobacter

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Microbiology of Soils
Assimilative denitrification is done by

all of these
plants
prokaryotes
fungi

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Microbiology of Soils
Which of the following is capable of oxidizing sulfur to sulfates?

Rhodospirillum
Rhodomicrobium
Thiobacillus thiooxidans
Desulfotomaculum

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Microbiology of Soils
Denitrification is carried out

All of these
predominantly by Bacillus spp
predominantly by Pseudomonas spp
usually by facultative anaerobes

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Microbiology of Soils
Denitrification may be distinguished as

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

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