A biofertilizer helps in increasing the supply of primary nutrients to plants Which of the following...........

Science Affairs Botany

A biofertilizer helps in increasing the supply of primary nutrients to plants. Which of the following is/are examples of biofertilizers?

1. Azotobacter 2. Rhizobium

3. Mycorrhizae 4 Organic Fertilizer

Select the correct answer using the codes given below.

1 and 2

1 and 3 only

2 and 3

All of above

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Explanation:

All of the above are correct.

A Bio fertilizer (also bio-fertilizer) is a substance which contains living microorganisms which, when applied to seeds, plant surfaces, or soil, colonize the rhizosphere or the interior of the plant and promotes growth by increasing the supply or availability of primary nutrients to the host plant.