Which Azolla species is tolerant to high temperature and salinity?
Correct answer – (c)
Azolla microphylla tolerates high temperature and salinity.
It is suitable for tropical rice ecosystems.
It is widely used in India.
Information Booster / Facts
Azolla is used as green manure in rice.
It fixes atmospheric nitrogen.
Why other options are incorrect
(a) Less tolerant to salinity.
(b) Performs better in cooler climates.
(d) Not highly salt tolerant.
English
100 Questions
125 Marks
80 Mins English English25 Questions50 Marks20 Mins English English25 Questions25 Marks20 Mins EnglishSodium Adsorption Ratio (SAR) can be expressed as
Which of the following best represents the pH range of sodic soils?
Which Azolla species is tolerant to high temperature and salinity?
Amendment used to reclaim acid soil is
The effectiveness of Rock phosphate increases in soil
The general characteristics of ammoniacal fertilizers are:
1. Early available to plants as they are readily soluble 2. Leaching losses are less as they are adsorbed on clay complex 3. Increase alkalinity as they are basic in residue 4. Reduce alkalinity as they are acidic in residue
Tea crop grows well under the pH range of:
Acid soils can be reclaimed by application of:
Suggested Test Series
Suggested Test Series
Sodium Adsorption Ratio (SAR) can be expressed as
Which of the following best represents the pH range of sodic soils?
Which Azolla species is tolerant to high temperature and salinity?
Amendment used to reclaim acid soil is
The effectiveness of Rock phosphate increases in soil
The general characteristics of ammoniacal fertilizers are:
1. Early available to plants as they are readily soluble 2. Leaching losses are less as they are adsorbed on clay complex 3. Increase alkalinity as they are basic in residue 4. Reduce alkalinity as they are acidic in residue
Tea crop grows well under the pH range of:
Acid soils can be reclaimed by application of:
