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@ARTICLE{Asaye:908875,
      author       = {Asaye, Zeleke and Kim, Dong-Gill and Yimer, Fantaw and
                      Prost, Katharina and Obsa, Oukula and Tadesse, Menfese and
                      Gebrehiwot, Mersha and Brüggemann, Nicolas},
      title        = {{E}ffects of {C}ombined {A}pplication of {C}ompost and
                      {M}ineral {F}ertilizer on {S}oil {C}arbon and {N}utrient
                      {C}ontent, {Y}ield, and {A}gronomic {N}itrogen {U}se
                      {E}fficiency in {M}aize-{P}otato {C}ropping {S}ystems in
                      {S}outhern {E}thiopia},
      journal      = {Land},
      volume       = {11},
      number       = {6},
      issn         = {2073-445X},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2022-02889},
      pages        = {784 -},
      year         = {2022},
      abstract     = {Low nutrient input and low soil fertility are limiting
                      agricultural productivity in Ethiopia. The main objectives
                      were therefore to evaluate the effects of combined compost
                      and mineral fertilizer (MF) application on soil properties,
                      yield, agronomic nitrogen use efficiency, and adoption of
                      compost application in maize (Zey mays L.)—potato (Solanum
                      tuberosum L.) cropping systems. Yield data were collected
                      from 20 smallholders applying (i) compost and MF at a total
                      rate of 110 kg N ha−1, with 6 Mg compost ha−1 + MF
                      (6CF), 12 Mg compost ha−1 + MF (12CF), and 16 Mg compost
                      ha−1 + MF (16CF; compost on a fresh weight basis), (ii) MF
                      application of 108 kg N ha−1 (F), and (iii) zero
                      fertilization. Soil from 0–20 and 20–40 cm depths was
                      collected from 16 farms using compost and MF. Compost + MF
                      treatments showed significantly lower soil bulk density and
                      iron contents, while pH, electrical conductivity, and cation
                      exchange capacity were higher compared to F treatments. The
                      6CF, 12CF, and 16CF showed 22, 43, and $54\%$ higher maize
                      grain yield and 8, 16, and $18\%$ higher potato tuber yield
                      compared to F, respectively. The scarcity of organic
                      material was a major socioeconomic constraint for
                      smallholders for producing and applying compost},
      cin          = {IBG-3},
      ddc          = {630},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {2173 - Agro-biogeosystems: controls, feedbacks and impact
                      (POF4-217)},
      pid          = {G:(DE-HGF)POF4-2173},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000816555200001},
      doi          = {10.3390/land11060784},
      url          = {https://juser.fz-juelich.de/record/908875},
}