Question

Which of the following can be used as biofertilizer in cotton field? (a) Azolla - Anabaena

Answer 1

As options are not provided so, i'm giving a general answer.

Bacillus subtilis is a biofertilizer used for the cotton plants.

These biofertilizers makes it easy for the plants to take up nutrients from the soil. The Biofertilzers helps in converting complex organic compounds into simpler forms which can be then easily absorbed by the plants throught their roots from the soil.

They help in promoting plant growth and in restoring the nutrient value if the soil.

Answer 2

Azotobacter chroococcum

Explanation:

• The cotton is a dicotyledonous crop. The best biofertilizer for cotton is Azotobacter chroococcum.
• This is a Azotobacter is a bacterial species. It is a nitrogen fixing bacteria. This fixes the atmospheric nitrogen by symbiotic relationship with the plant roots. This bacteria produces many enzymes for the purpose of nitrogen fixation involving ferrodoxin, nitrogenase and hydrogenase required for the purpose of nitrogen fixation and metabolism of nitrogen in the soil.

Learn more about Azotobacter:

Azobacter and Beijerinciaare the examles of...??symbiotic nitogen fixing bacteria.or Asymbiotic nitogen fixing bacteria..??: https://brainly.in/question/9266996

A farmer adds a azobacter culture to the soil before sowing maize. How does it increaes yeild of maize: https://brainly.in/question/8447436