GK
SOIL AND AGRICULTURE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
How does the supply of nitrogen in grains take place?
|
|
From stem
|
|
|
From old leaves
|
|
|
From plant roots
|
|
|
By photosynthesis
|
Explanation:
Detailed explanation-1: -Plants cannot themselves obtain their nitrogen from the air but rely mainly on the supply of combined nitrogen in the form of ammonia, or nitrates, resulting from nitrogen fixation by free-living bacteria in the soil or bacteria living symbiotically in nodules on the roots of legumes.
There is 1 question to complete.