Bioindicator, Oligochaeta, Conservation Agriculture, Soil health
Earthworms, Amazonian Dark Earths, Disturbance, Land-use, DNA Barcoding, Biodiversity
Anthrosols, nutrient stocks, physical properties, trace elements, soil fertility
Soil Invertebrates, Plant-microbe, biochar, Organic Fertilization, Bradyrhizobium, Zea mays