Seed treatment in pulse crops to fix nitrogen is done by using:

Which one of the following is not correctly matched? (Nitrogen fixing agent - Crop)

Which of the following is not a nitrogen-fixing organism?

Blue-green algae are chiefly used as biofertilizer in the crop of -

The biofertilizer used as a supplementary food for the cattle, especially for milking bovines is :

Which of the following is used as Biofertilizer?