Question

Nitrogen fixation is worst affected if the soil is.. (a) Having low pH

(b) Having high pH

(c) Having zero pH

(d) Having pH equal to 7​

Answer 1

Answer:

Having high pH

Explanation:

is the answer

Answer 2

Answer:

Nitrogen fixation is worst affected if the soil is having low pH. Option (a) is correct.

Explanation:

• In nitrogen fixation, the molecular nitrogen present in the air is converted into the nitrogenous compounds in the soil by various biochemical processes.
• Various processes like biological processes, industrial processes, and lightning cause nitrogen fixation.

At a low pH level, the nitrogenous activity development is delayed. The seed yield and the production of the dry matter also get reduced at the low pH level. So, the nitrogen fixation gets reduced at the low pH level.

Hence, nitrogen fixation is worst affected if the soil is having low pH.

Option (a) is correct.