If the harmful salt present in the soil is Sodium carbonate, it can be neutralized by the addition of
Calcium sulphate
Calcium sulphate, particularly in its hydrated form known as gypsum (CaSO_4 \cdot 2H_2O), is a widely used amendment for reclaiming sodic soils containing Sodium carbonate . Based on the reactions and the effectiveness in treating sodic soils high in Sodium carbonate , Calcium sulphate is the most appropriate additive for neutralization and remediation.
Important Questions from Water Requirement of Crops
- A tubewell operating $10\text{ hours}$ per day discharges water at a rate of $25\text{ m}^3\text{.h}^{-1}$. The average irrigation depth is $80\text{ mm}$, and irrigation interval is $20\text{ days}$. If intensity of irrigation is $80\%$, the culturable command area (in hectares) is ________. (Rounded off to two decimal places)
Irrigation water having SAR value of 20, is called
The ratio between the areas of a crop irrigated and the quantity of water required during its entire period of growth is known as
Alkaline soils are reclaimed by
For crops like potato and sugar-beets, the commonly adopted method of surface irrigation is
