CEC of humus is
A. 100
B. 150
C. 200
D. 250 - 350
Answer: Option D
Solution(By Examveda Team)
CEC is cation exchange capability and varies according to the type of soil.Humus, the end product of decomposed organic matter, has the highest CEC value because organic matter colloids have large quantities of negative charges.
Humus has a CEC two to five times greater than montmorillonite clay and up to 30 times greater than kaolinite clay, so is very important in improving soil fertility.
CEC of humus is 250 - 350.
Related Questions on Soil Science
Which one is the most important among Amphibloes
A. Hornblend
B. Tremolite
C. Diopsite
D. Actinolite
Sources of negative charges on silicate clays is/are
A. Exposed crystal edges
B. Isomorphus substitution
C. Anion exchange
D. All of these
The most conspicuous chemical change that take place when soil is flooded is reduction of
A. Fe
B. P
C. S
D. None of these
Join The Discussion