Earthworm effects on N dynamics and soil respiration in microcosms receiving organic and inorganic nutrients

amendement du sol aporrectodea aporrectodea caliginosa azote biological activity in soil biologie du sol bovin cattle crop residues earthworms engrais organique enmiendas del suelo ganado bovino gas exchange intercambio de gases lumbricidae lumbricus terrestris nitrogen oligochaeta organic fertilizers residuos de cosechas respiration soil soil amendments soil biology sol suelo vicia villosa