@article{fdi:010069940, title = {{I}mpact of simulated drought stress on soil microbiology, and nematofauna in a native shrub + millet intercropping system in {S}enegal}, author = {{D}iakhat{\'e}, {S}. and {B}adiane, {N}dour, {N}.{Y}. and {F}ounoune {M}boup, {H}. and {D}iatta, {S}. and {F}ofana {F}all, {A}. and {H}ernandez, {R}.{R}. and {C}ournac, {L}aurent and {D}ick, {R}. and {C}hapuis {L}ardy, {L}ydie}, editor = {}, language = {{ENG}}, abstract = {{D}rought stress strongly affects soil biota and impairs crop production, which under climate change will be exacerbated in semi-arid cropping regions such as the {S}ahel. {H}ence soil management systems are needed that can buffer against drought. {I}n {W}est {A}frica, field studies have found intercropping of millet with the native shrub {P}iliostigma reticulatum improves soil-plant-water relations, microbial activity and diversity, and suppress parasitic nematodes, which can significantly increase crop yield. {H}owever, little information is available on its beneficial or negative effects on soils or crops during water stress. {T}herefore, the objective was to investigate the impact of {P}. reticulatum in moderating water stress effects on soil properties and pearl millet ({P}ennisetum glaucum [{L}.] {R}. {B}r.) productivity. {I}n the greenhouse, soil chemical and microbial properties and millet growth were investigated with a factorial experiment of varying levels of soil moisture (favorable, moderately stressed, or severely stressed water conditions) that was imposed for 55 days on soils containing sole {P}. reticulatum or millet, or millet + {P}. reticulatum. {T}he results showed that the presence of {P}. reticulatum did not buffer soils against water stress in relation to soil chemical and microbial properties measured at the end of the experiment. {S}evere water stress did significantly decrease the height, number of leaves, and aboveground biomass of millet plants. {A}dditionally, respiration, nematofauna trophic structure and abundance decreased as water stress increased. {L}astly, bacterial feeders and plant parasitic nematodes were the most sensitive to severe water stress while fungal feeding nematodes remained unaffected. {T}he results suggested that the intensity of water stress had more negative effects on soil basal respiration rather than soil microbial biomass.}, keywords = {{SENEGAL}}, booktitle = {}, journal = {{O}pen {J}ournal of {S}oil {S}cience}, volume = {6}, numero = {12}, pages = {189--203}, ISSN = {2162-5360}, year = {2016}, DOI = {10.4236/ojss.2016.612018}, URL = {https://www.documentation.ird.fr/hor/fdi:010069940}, }