@article{fdi:010078975,
  title = {{I}norganic fertilizer use efficiency of millet crop increased with organic fertilizer application in rainfed agriculture on smallholdings in central {S}enegal},
  author = {{T}ounkara, {A}. and {C}lermont {D}auphin, {C}athy and {A}ffholder, {F}. and {N}diaye, {S}. and {M}asse, {D}ominique and {C}ournac, {L}aurent},
  editor = {},
  language = {{ENG}},
  abstract = {{M}uch effort has been spent on formulating guidelines for inorganic fertilizer use in millet crops in {S}ub-sahelian farms. {H}owever, these guidelines do not take into account the diversity of manuring practices. {I}n this study we analyzed over two years (2016-2017) the use efficiency of an inorganic {NPK} fertilizer as affected by the two most contrasted categories of organic manure strategies ({OMS}) found in millet fields of central {S}enegal. 19 farmers' fields were selected in a village typical of that region, 11 and 8 of which respectively corresponding to categories {OMS}1 and {OMS}2 as follows: {OMS}1, locally referred to as {H}omefields, were fields continuously cropped with millet over the last 15 years, having received organic manure regularly in the past, and manured again at the onset of the 2016 rainy season. {OMS}2 fields locally referred to as {O}utfields, were not manured in 2016 and were rarely manured in the past. {F}our of them were continuously cropped with millet and the others had followed a triennial millet-peanut-fallow rotation. {I}n 2017, no manure was applied in any of the {OMS}1 or {OMS}2 fields. {A} pairwise treatments with and without the same inorganic fertilizer dose was applied in each field in both 2016 and 2017 cropping seasons. {I}n 2016, the higher the manure application, the higher the use efficiency of the inorganic fertilizer applied. {T}he use efficiency of the inorganic {N} was most closely related to soil bulk density and {P} availability. {I}n 2017, with no new manure amendment, millet yield in {OMS}1 was about three times higher than in 2016. {I}t was close to the water-limited yield, suggesting that the residual effect of the manure applied in 2016 was high. {T}he use efficiency of the inorganic {N} was generally low under these conditions. {I}n {OMS}2, millet yield and use efficiency of inorganic fertilizer remained low in both years. {T}he crop rotation with peanuts did not enrich the soil compared to the millet returning every year, but it reduced {S}triga hermontica infestation and increased the millet 1000-grain weight. {T}he methodological approach developed here may help in formulating guidelines to deal with the diversity of farming practices in {S}ub-sahelian villages.},
  keywords = {{O}rganic manure strategies ({OMS}) ; {C}rop rotation ; {I}norganic fertilizer ; {A}gronomic use efficiency ; {R}ainfall distribution ; {SENEGAL} ; {FATICK} ; {ZONE} {SEMIARIDE} ; {ZONE} {SOUDANOSAHELIENNE}},
  booktitle = {},
  journal = {{A}griculture {E}cosystems and {E}nvironment},
  volume = {294},
  numero = {},
  pages = {art. 106878 [11 p.]},
  ISSN = {0167-8809},
  year = {2020},
  DOI = {10.1016/j.agee.2020.106878},
  URL = {https://www.documentation.ird.fr/hor/fdi:010078975},
}