Microbiology of Soils Nitrogen fixation by the microorganisms can be detected by adopting the approach of cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen measuring15N2 by mass spectrometer All of these demonstrating growth in a nitrogen free medium cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen measuring15N2 by mass spectrometer All of these demonstrating growth in a nitrogen free medium ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which are the main source of biofertilisers? Cyanobacteria Bacillus None of these Streptococcus Cyanobacteria Bacillus None of these Streptococcus ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following soil microorganism is involved in the reduction of sulfates to H2S? Rhodospirillum Desulfotomaculum Thiobacillus thiooxidans Rhodomicrobium Rhodospirillum Desulfotomaculum Thiobacillus thiooxidans Rhodomicrobium ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen fixation fix the free nitrogen (N2) by which it should not be usable by plants changes the free nitrogen (N2) to a form usable by plants especially changes nitrogen compounds, mostly amines such as NH2 both (a) and (b) fix the free nitrogen (N2) by which it should not be usable by plants changes the free nitrogen (N2) to a form usable by plants especially changes nitrogen compounds, mostly amines such as NH2 both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The groups of bacteria which have the ability to fix nitrogen from air to soil are both (a) and (b) symbiotic none of these nonsymbiotic both (a) and (b) symbiotic none of these nonsymbiotic ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Degree of compost maturity can be assesed by both (a) and (b) germination test infrared technique None of these both (a) and (b) germination test infrared technique None of these ANSWER DOWNLOAD EXAMIANS APP
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