@article{DiehlMayerMayeretal.2015,
  author    = {Diehl, Katharina and Mayer, Manfred and Mayer, Frank and G{\"o}rig, Tatiana and Bock, Christina and Herr, Raphael M. and Schneider, Sven},
  title     = {Physical Activity Counseling by Primary Care Physicians: Attitudes, Knowledge, Implementation, and Perceived Success},
  series = {Journal of physical activity and health},
  volume    = {12},
  journal   = {Journal of physical activity and health},
  number    = {2},
  publisher = {Human Kinetics Publ.},
  address   = {Champaign},
  issn      = {1543-3080},
  doi       = {10.1123/jpah.2013-0273},
  pages     = {216 -- 223},
  year      = {2015},
  abstract  = {Background: In physical activity (PA) counseling, primary care physicians (PCPs) play a key role because they are in regular contact with large sections of the population and are important contact people in all health-related issues. However, little is known about their attitudes, knowledge, and perceived success, as well as about factors associated with the implementation of PA counseling. Methods: We collected data from 4074 PCPs including information on physician and practice characteristics, attitudes toward cardiovascular disease (CVD) prevention, and measures used during routine practice to prevent CVD. Here, we followed widely the established 5 A's strategy (Assess, Advise, Agree, Assist, Arrange). Results: The majority (87.2\%) of PCPs rated their own level of competence in PA counseling as 'high,' while 52.3\% rated their own capability to motivate patients to increase PA as 'not good.' Nine of ten PCPs routinely provided at least 1 measure of the modified 5 A's strategy, while 9.5\% routinely used all 5 intervention strategies. Conclusions: The positive attitude toward PA counseling among PCPs should be supported by other stakeholders in the field of prevention and health promotion. An example would be the reimbursement of health counseling services by compulsory health insurance, which would enable PCPs to invest more time in individualized health promotion.},
  language  = {en}
}
@article{NdahSchulerDiehletal.2018,
  author    = {Ndah, Hycenth Tim and Schuler, Johannes and Diehl, Katharina and Bateki, Christian and Sieber, Stefan and Knierim, Andrea},
  title     = {From dogmatic views on conservation agriculture adoption in Zambia towards adapting to context},
  series = {International Journal of Agricultural Sustainability},
  volume    = {16},
  journal   = {International Journal of Agricultural Sustainability},
  number    = {2},
  publisher = {Routledge, Taylor \& Francis Group},
  address   = {Abingdon},
  issn      = {1473-5903},
  doi       = {10.1080/14735903.2018.1447227},
  pages     = {228 -- 242},
  year      = {2018},
  abstract  = {Conservation Agriculture (CA) has been widely promoted in sub-Saharan Africa (SSA) as a sustainable agricultural practice, yet with debatable success. Most authors assume successful adoption, only if all three principles of CA are implemented: (1) minimum or zero tillage, (2) maintenance of a permanent soil cover, and (3) integration of crop rotations. Based on this strict definition, adoption has declined or remained stagnant. Presently, not much attention has been given to context-suited adaptation possibilities, and partial adoption has not been recognized as an entry point to full adoption. Furthermore, isolated success cases have not been analysed sufficiently. By applying the QAToCA approach based on focus group discussions complemented by semi-structured qualitative expert and farmer interviews, we assessed the reasons behind positive CA adaptation and adoption trends in Zambia. Main reasons behind Zambia's emerging success are (1) a positive institutional influence, (2) a systematic approach towards CA promotion - encouraging a stepwise adaptation and adoption, and (3) mobilization of strong marketing dynamics around CA. These findings could help to eventually adjust or redesign CA promotion activities. We argue for a careful shift from the 'dogmatic view' on adoption of CA as a packaged technology, towards adapting its principles to the small-scale farming context of SSA.},
  language  = {en}
}
@article{ZollDiehlSiebert2019,
  author    = {Zoll, Felix and Diehl, Katharina and Siebert, Rosemarie},
  title     = {Integrating sustainability goals in innovation processes},
  series = {Sustainability},
  volume    = {11},
  journal   = {Sustainability},
  number    = {14},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2071-1050},
  doi       = {10.3390/su11143761},
  pages     = {15},
  year      = {2019},
  abstract  = {The innovative dual-purpose chicken approach aims at contributing to the transition towards sustainable poultry production by avoiding the culling of male chickens. To successfully integrate sustainability aspects into innovation, goal congruency among actors and clearly communicating the added value within the actor network and to consumers is needed. The challenge of identifying common sustainability goals calls for decision support tools. The objectives of our research were to investigate whether the tool could assist in improving communication and marketing with respect to sustainability and optimizing the value chain organization. Three actor groups participated in the tool application, in which quantitative and qualitative data were collected. The results showed that there were manifold sustainability goals within the innovation network, but only some goals overlapped, and the perception of their implementation also diverged. While easily marketable goals such as 'animal welfare' were perceived as being largely implemented, economic goals were prioritized less often, and the implementation was perceived as being rather low. By visualizing congruencies and differences in the goals, the tool helped identify fields of action, such as improved information flows and prompted thinking processes. We conclude that the tool is useful for managing complex decision processes with several actors involved.},
  language  = {en}
}
@article{CavaelDiehlLentzsch2020,
  author    = {Cavael, Ulrike and Diehl, Katharina and Lentzsch, Peter},
  title     = {Assessment of growth suppression in apple production with replant soils},
  series = {Ecological indicators : integrating monitoring, assessment and management},
  volume    = {109},
  journal   = {Ecological indicators : integrating monitoring, assessment and management},
  publisher = {Elsevier Science},
  address   = {Amsterdam},
  issn      = {1470-160X},
  doi       = {10.1016/j.ecolind.2019.105846},
  pages     = {9},
  year      = {2020},
  abstract  = {Apple replant disease (ARD) is a specific apple-related form of soil fertility loss due to unidentified causes and is also known as soil fatigue. The effect typically appears in monoculture production sites and leads to production decreases of up to 50\%, even though the cultivation practice remains the same. However, an indication of replant disease is challenged by the lack of specification of the particular microbial group responsible for ARD. The objective of this study was to establish an algorithm for estimating growth suppression in orchards irrespective of the unknowns in the complex causal relationship by assessing plant-soil interaction in the orchard several years after planting. Based on a comparison between no-replant and replant soils, the Alternaria group (Ag) was identified as a soil-fungal population responding to replant with abundance. The trunk cross-sectional area (CSA) was found to be a practical and robust parameter representing below-ground and above-ground tree performance. Suppression of tree vigour was therefore calculated by dividing the two inversely related parameters, Q = ln(Ag)/CSA, as a function of soil-fungal proportions and plant responses at the single-tree level. On this basis, five clusters of tree vigour suppression (Q) were defined: (1) no tree vigour suppression/vital (0\%), (2) escalating (- 38\%), (3) strong (- 53\%), (4) very strong (- 62\%), and (5) critical (- 74\%). By calculating Q at the level of the single tree, trees were clustered according to tree vigour suppression. The weighted frequency of clusters in the field allowed replant impact to be quantified at field level. Applied to a case study on sandy brown, dry diluvial soils in Brandenburg, Germany, the calculated tree vigour suppression was 46\% compared to the potential tree vigour on no-replant soil in the same field. It is highly likely that the calculated growth suppression corresponds to ARD-impact This result is relevant for identifying functional changes in soil and for monitoring the economic effects of soil fatigue in apple orchards, particularly where long-period crop rotation or plot exchange are improbable.},
  language  = {en}
}
@article{CavaelDiehlLentzsch2020,
  author    = {Cavael, Ulrike and Diehl, Katharina and Lentzsch, Peter},
  title     = {Assessment of growth suppression in apple production with replant soils},
  series = {Ecological indicators : integrating monitoring, assessment and management},
  volume    = {109},
  journal   = {Ecological indicators : integrating monitoring, assessment and management},
  publisher = {Elsevier Science},
  address   = {Amsterdam},
  issn      = {1470-160X},
  doi       = {10.1016/j.ecolind.2019.105846},
  pages     = {9},
  year      = {2020},
  abstract  = {Apple replant disease (ARD) is a specific apple-related form of soil fertility loss due to unidentified causes and is also known as soil fatigue. The effect typically appears in monoculture production sites and leads to production decreases of up to 50\%, even though the cultivation practice remains the same. However, an indication of replant disease is challenged by the lack of specification of the particular microbial group responsible for ARD. The objective of this study was to establish an algorithm for estimating growth suppression in orchards irrespective of the unknowns in the complex causal relationship by assessing plant-soil interaction in the orchard several years after planting. Based on a comparison between no-replant and replant soils, the Alternaria group (Ag) was identified as a soil-fungal population responding to replant with abundance. The trunk cross-sectional area (CSA) was found to be a practical and robust parameter representing below-ground and above-ground tree performance. Suppression of tree vigour was therefore calculated by dividing the two inversely related parameters, Q = ln(Ag)/CSA, as a function of soil-fungal proportions and plant responses at the single-tree level. On this basis, five clusters of tree vigour suppression (Q) were defined: (1) no tree vigour suppression/vital (0\%), (2) escalating (- 38\%), (3) strong (- 53\%), (4) very strong (- 62\%), and (5) critical (- 74\%). By calculating Q at the level of the single tree, trees were clustered according to tree vigour suppression. The weighted frequency of clusters in the field allowed replant impact to be quantified at field level. Applied to a case study on sandy brown, dry diluvial soils in Brandenburg, Germany, the calculated tree vigour suppression was 46\% compared to the potential tree vigour on no-replant soil in the same field. It is highly likely that the calculated growth suppression corresponds to ARD-impact This result is relevant for identifying functional changes in soil and for monitoring the economic effects of soil fatigue in apple orchards, particularly where long-period crop rotation or plot exchange are improbable.},
  language  = {en}
}