Notifications
Clear all
Biology
1
Posts
2
Users
0
Likes
422
Views
0
22/08/2021 7:30 pm
Topic starter
Which one of the following statements is correct?
(1) At present it is not possible to grow maize without chemical fertilizers
(2) Both Azotobacter and Rhizobium fix atmospheric nitrogen in root nodules of plants.
(3) Extensive use of chemical fertilizers may lead to eutrophication of nearby water bodies.
(4) Cyanobacteria such as Anabaena and Nostoc are important mobilizers of phosphates and for plant nutrition in soil
1 Answer
0
22/08/2021 7:30 pm
(3) Extensive use of chemical fertilizers may lead to eutrophication of nearby water bodies.