Oxisols have a ________ cation-exchange and, therefore, ________ fertility.
A) high; high
B) low; high
C) low; low
D) high; low

Question

Quizplus · Accepted Answer

Oxisols are highly weathered soils typically found in tropical regions. With extensive weathering, the layers of the soil, especially the topsoil, have low or negligible amounts of nutrients like nitrogen and phosphorus. Also, the high temperatures and heavy rainfall prevalent in tropical regions increase the leaching of nutrients from the soil. Consequently, oxisols have a low cation-exchange capacity (CEC). Therefore, they are less fertile compared to soils with a high CEC such as Mollisols or Alfisols.

Oxisols Have a ________ Cation-Exchange And, Therefore, ________ Fertility

Oxisols Have a Cation-Exchange And, Therefore, Fertility