Mineral Nutriti...

Plants can be grown in - 

Reaction carried out by $$N_2$$ fixing microbes include
$$2NH_3 + 3O_2 \rightarrow 2NO_2^- + 2H^+ + 2H_2O$$            (i)
$$2NO_2^- + O_2 \rightarrow 2NO_3^-$$                                       (ii)
Which of the following statements about these equations is not true?

Which one of the following symptoms is not due to manganese toxicity in plants?

With regard to the Biological Nitrogen Fixation by Rhizobium in association with soybean, which one of the following statement/ statements does not hold true?

Plants require Sulphur for

Unicellular symbiotic organisms improve yield of legumes by

Which one of the following plants can fix nitrogen from air?

Nitrogen fixing microbe associated with Azolla in rice fields is 

Match column I with column II and select the correct answer from the given codes. 

Which of the following plant micronutrients is an activator for a number of enzymes particularly involved in the dehydrogenation and decarboxylation reactions during respiration?