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Biological Systems in Biofertilizer Production

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Biological Systems in Biofertilizer Production

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Questions and Answers

Which of the following is NOT one of the biological systems used in the production of biofertilizers?

Solvent for mineral phosphates

Oxidizer for organic matter (correct)

Silicate analyzer and liberator for potassium and silicon

Stabilizer for atmospheric nitrogen

Which biological system is responsible for mineralizing mineral phosphates and organophosphates?

Silicate analyzer and liberator for potassium and silicon

Stabilizer for atmospheric nitrogen

Oxidizer for organic matter

Solvent for mineral phosphates (correct)

What is the role of the system that acts as a silicate analyzer and liberator for potassium and silicon?

To stabilize atmospheric nitrogen

To liberate potassium and silicon (correct)

To oxidize organic matter

To mineralize mineral phosphates

Which of the following is a function of the biological system that stabilizes atmospheric nitrogen?

Stabilization of atmospheric nitrogen Signup and view all the answers

What is the main function of the biological system acting as a solvent for mineral phosphates and organophosphates?

Mineralization of mineral phosphates and organophosphates Signup and view all the answers

Which type of organisms are capable of stabilizing atmospheric nitrogen?

Prokaryotes such as bacteria, actinomycetes, and blue-green bacteria Signup and view all the answers

What is the most common type of Azotobacter?

Az. Chrococcum Signup and view all the answers

What is the optimum temperature for Azotobacter?

30-35°C Signup and view all the answers

Which of the following organisms secrete nitrogenous substances that help plants grow and fix the equivalent of 20-40 kg/ha annually?

Azotobacter Signup and view all the answers

What does Azotobacter not have the ability to do?

Decompose difficult organic substances Signup and view all the answers