The secondary clay mineral colloid has the strongest acid-base buffer capacity while the humic colloid has the lowest acid-base buffer capacity in soil colloids.
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Which of the following are the sources of soil acids?
Activation of aluminum in soil
B. Dissociation of carbonic acid
C. Dissociation of organic acids
Dissociation of water
The soil solution is a form conversion agent for nutrient elements.
Which of the following cation can replace the silicon ion in the silicon-oxygen tetrahedron?
Al3+
B. O2-
C. H+
D. Ca2+
The electric double layer of soil colloid includes potential-determining ion layer and ______ .