Page 46 - Agronomy-Soil.Sci-Horticulture objective AFO

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Q. Microbial conversion of nitrate into chemical nitrogen is called
as (IBPS AFO Mains AFO 2015)

1. Nitrogen fixation

2. Nitrate reduction

3. Denitrification

4. Both A & B

5. None of these

ANS:- Denitrification

Q. Drought resistance in plant is related to: (IBPS AFO Mains
AFO 2015)

1. Surplus water

2. Negative water potential

3. Positive water potential

4. Both B & C

5. None of these

ANS:- Positive water potential

Q. The manure also considered as biofertilizer is: (IBPS AFO
Mains AFO 2015)

1. BGA

2. FYM

3. Compost

4. Green manure

5. None of these

ANS:- BGA

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