@article{fdi:010049320, title = {{E}arthworm effects on plant growth do not necessarily decrease with soil fertility}, author = {{L}aossi, {K}.{R}. and {G}inot, {A}. and {N}oguera, {D}.{C}. and {B}louin, {M}. and {B}arot, {S}{\'e}bastien}, editor = {}, language = {{ENG}}, abstract = {{E}arthworms are known to generally increase plant growth. {H}owever, because plant-earthworm interactions are potentially mediated by soil characteristics the response of plants to earthworms should depend on the soil type. {I}n a greenhouse microcosm experiment, the responsiveness of plants ({V}eronica persica, {T}rifolium dubium and {P}oa annua) to two earthworm species (in combination or not) belonging to different functional groups ({A}porrectodea. caliginosa an endogeic species, {L}umbricus terrestris an anecic species) was measured in term of biomass accumulation. {T}his responsiveness was compared in two soils (nutrient rich and nutrient poor) and two mineral fertilization treatments (with and without). {T}he main significant effects on plant growth were due to the anecic earthworm species. {L}. terrestris increased the shoot biomass and the total biomass of {T}. dubium only in the rich soil. {I}t increased also the total biomass of {P}. annua without mineral fertilization but had the opposite effect with fertilization. {M}ineral fertilization, in the presence of {L}. terrestris, also reduced the total biomass of {V}. persica. {L}. terrestris did not only affect plant growth. {I}n {P}. annua and {V}. persica {A}. caliginosa and {L}. terrestris also affected the shoot/root ratio and this effect depended on soil type. {F}inally, few significant interactions were found between the anecic and the endogeic earthworms and these interactions did not depend on the soil type. {A} general idea would be that earthworms mostly increase plant growth through the enhancement of mineralization and that earthworm effects should decrease in nutrient-rich soils or with mineral fertilization. {H}owever, our results show that this view does not hold and that other mechanisms are influential.}, keywords = {{E}arthworms ; {L}. terrestris ; {A}. caliginosa ; {P}lant growth ; {S}oil type ; {N}utrient availability ; {S}hoot/root ratio}, booktitle = {}, journal = {{P}lant and {S}oil}, volume = {328}, numero = {1-2}, pages = {109--118}, ISSN = {0032-079{X}}, year = {2010}, DOI = {10.1007/s11104-009-0086-y}, URL = {https://www.documentation.ird.fr/hor/fdi:010049320}, }