@article{fdi:010086655,
  title = {{C}rop productivity, resource allocation and nitrogen concentration as affected by soil decomposers, mixed cropping and crop genotype},
  author = {{W}ang, {Z}. {Y}. and {L}u, {J}. {Z}. and {E}rktan, {A}mandine and {F}u, {L}. {B}. and {C}hen, {H}. and {Y}in, {M}. and {C}ao, {W}. {D}. and {S}cheu, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{M}ixed cropping, crop breeding and soil biodiversity all serve as promising strategies for the management of agroecosystems, but empirical evidence for their synergies and trade-offs remains little explored. {H}ere, we studied the effects of two main soil decomposers, collembolans and earthworms, on 15{N} uptake from organic residues, crop production, resource allocation and shoot-root {C}/{N} ratio of two bean genotypes ({S}-62 and {S}-69) in monoculture and mixture with wheat in a microcosm experiment. {S}oil decomposers mainly increased the pro-ductivity of wheat and little that of beans, but their effects on wheat varied with bean genotype. {E}arthworms increased the biomass of reproductive (+231%) and vegetative (+36%) organs as well as that of roots (+56%) of wheat in mixtures with {S}-62. {C}onversely, neither collembolans nor earthworms significantly affected wheat biomass when cultivated with {S}-69. {E}ffects of decomposers on crop {C}/{N} ratio were pronounced in beans, but varied between cropping systems as well as between genotypes. {I}n monoculture, collembolans decreased shoot {C}/{N} ratio of {S}-69 by 10%, whereas in mixture they increased it by 11% in {S}-62 irrespective of the presence of earthworms. 15{N} uptake by crop species was mainly affected by mixed cropping and earthworms; mixed cropping generally reduced the uptake of litter 15{N} by both crops, whereas earthworms generally increased it. {T}he results document that soil decomposers differentially affect different genotypes of crops in particular in mixture and indicate that wheat benefits more from decomposers than beans. {B}oth the non-uniform and complementary effects of soil decomposers on crop performance suggest that maintaining soil biodiversity may help in estab-lishing sustainable cropping systems and this may be particularly important in mixture. {T}he differential response of different genotypes to soil decomposers suggests that breeding programs targeting at establishing plant ge-notypes responsive to decomposer-mediated changes in plant performance may help in the establishment of sustainable monoculture but particularly mixed cropping systems in future.},
  keywords = {{M}ixed cropping ; {E}arthworms ; {C}ollembola ; {G}enotype ; {C}rop growth ; 15{N} labelling},
  booktitle = {},
  journal = {{S}oil {B}iology and {B}iochemistry},
  volume = {175},
  numero = {},
  pages = {108855 [12 ]},
  ISSN = {0038-0717},
  year = {2022},
  DOI = {10.1016/j.soilbio.2022.108855},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086655},
}