Plants sensitive to alkali will show poor yield when ESP is

A. < 10

B. > 10

C. > 15

D. < 15

Answer: Option B

Solution(By Examveda Team)

Plants sensitive to alkali will show poor yield when ESP is greater than 10.
ESP is the exchangeable sodium percentage that measures the proportion of cation exchange sites occupied by sodium. Alkali soils are characterized by high sodicity and pH. These soils contain sodium ions as the dominant ions and tend to have low salinity and high pH values.