The rhizosphere effect can be quantitatively represented by
A. C : N ratio
B. C : P ratio
C. R : S ratio
D. All of the above
Answer: Option C
Solution (By Examveda Team)
The rhizosphere effect can be quantitatively represented by the R : S ratio.The term rhizosphere to soil ratio indicates the number of microbes in rhizospheric soil divided by the number of microbes in soil free of plant roots. R:S ratio is greater for bacteria (20 : 1) and less for fungi and actinomycetes.
This Question Belongs to Agriculture >> Soil Science
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