Anion exchange capacity (AEC) refers to the soil’s ability to adsorb negatively charged ions (anions). It is mainly governed by the presence of hydroxyl groups (Al–OH) on clay minerals and protonation of organic matter. Carboxyl and phenolic groups contribute to cation exchange capacity (CEC), not AEC. Hence, (a) is unrelated.
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120 Mins English English100 Questions100 Marks120 Mins English English60 Questions60 Marks45 Mins EnglishThe highest category of soil classification system is
Resource Conservation Technologies include: A) Zero or Minimum Tillage B) Direct Seeding C) Bed planting with residue mulch
The most widely used vegetation index is
For restoration of highly degraded areas, plantation of which is recommended?
The equation to estimate soil loss by wind erosion is , in which K stands for
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