Sodic soils have excess sodium ions that hinder plant growth. Gypsum (CaSO₄·2H₂O) supplies calcium, which replaces sodium on the soil exchange complex. Leaching then removes displaced sodium ions from the root zone. Hence,
gypsum followed by leaching is the correct method.
English
100 Questions
125 Marks
80 Mins English English20 Questions10 Marks15 Mins English English50 Questions50 Marks40 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:
