Farmers’ preferences for fertilizers derived from domestic sewage and kitchen waste – A discrete choice experiment in Germany

In view of increasing energy and resource scarcities, nutrient recycling from domestic wastewater is a promising way to obtain mineral fertilizers. Given the lacking evidence about the acceptance of recycling fertilizers by the farming sector, we elicited farmer preferences and willingness to pay (W...

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Autores principales: Utai, Katrin, Narjes, Manuel, Krimly, Tatjana, Lippert, Christian
Formato: Journal Article
Lenguaje:Inglés
Publicado: Deutscher Fachverlag 2022
Materias:
Acceso en línea:https://hdl.handle.net/10568/130661
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author Utai, Katrin
Narjes, Manuel
Krimly, Tatjana
Lippert, Christian
author_browse Krimly, Tatjana
Lippert, Christian
Narjes, Manuel
Utai, Katrin
author_facet Utai, Katrin
Narjes, Manuel
Krimly, Tatjana
Lippert, Christian
author_sort Utai, Katrin
collection Repository of Agricultural Research Outputs (CGSpace)
description In view of increasing energy and resource scarcities, nutrient recycling from domestic wastewater is a promising way to obtain mineral fertilizers. Given the lacking evidence about the acceptance of recycling fertilizers by the farming sector, we elicited farmer preferences and willingness to pay (WTP) for selected attributes of mineral fertilizers made from domestic sewage and kitchen waste. We conducted a Discrete Choice Experiment with 206 German farmers and fitted a Random Parameter Logit (RPL) model. As-suming an average market price level of around 300 euros per tonne of N-P-K fertilizer, the choice exper-iment revealed that farmers not engaged in non-food production such as forage cultivation or renewable energies activities and without farmer-to-consumer direct marketing would accept a recycling fertilizer only together with a financial compensation via price discount of approximately 10%. The average WTP drops considerably if a fertilizer’s heavy metal contents are relatively high and if the absence of drug residues cannot be guaranteed, whereas a customizable nutrient composition and a constant supply availability would have a sales promoting effect. Farmers’ characteristics can only partly explain the notable heterogeneity of the WTP for the considered fertilizer attributes. Even though the WTP for a recycling fertilizer is on average less than that for a conventional mineral fertilizer, the estimated WTP standard deviations suggest that not all farmers expect a financial compensation via price discount when purchasing recycling fertilizers.
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spelling CGSpace1306612023-12-01T07:38:59Z Farmers’ preferences for fertilizers derived from domestic sewage and kitchen waste – A discrete choice experiment in Germany Utai, Katrin Narjes, Manuel Krimly, Tatjana Lippert, Christian sewage fertilizers food wastes farmers' attitudes In view of increasing energy and resource scarcities, nutrient recycling from domestic wastewater is a promising way to obtain mineral fertilizers. Given the lacking evidence about the acceptance of recycling fertilizers by the farming sector, we elicited farmer preferences and willingness to pay (WTP) for selected attributes of mineral fertilizers made from domestic sewage and kitchen waste. We conducted a Discrete Choice Experiment with 206 German farmers and fitted a Random Parameter Logit (RPL) model. As-suming an average market price level of around 300 euros per tonne of N-P-K fertilizer, the choice exper-iment revealed that farmers not engaged in non-food production such as forage cultivation or renewable energies activities and without farmer-to-consumer direct marketing would accept a recycling fertilizer only together with a financial compensation via price discount of approximately 10%. The average WTP drops considerably if a fertilizer’s heavy metal contents are relatively high and if the absence of drug residues cannot be guaranteed, whereas a customizable nutrient composition and a constant supply availability would have a sales promoting effect. Farmers’ characteristics can only partly explain the notable heterogeneity of the WTP for the considered fertilizer attributes. Even though the WTP for a recycling fertilizer is on average less than that for a conventional mineral fertilizer, the estimated WTP standard deviations suggest that not all farmers expect a financial compensation via price discount when purchasing recycling fertilizers. 2022-08-06 2023-06-06T14:08:06Z 2023-06-06T14:08:06Z Journal Article https://hdl.handle.net/10568/130661 en Limited Access Deutscher Fachverlag Utai, K.; Narjes, M.; Krimly, T.; Lippert, C. (2022) Farmers’ preferences for fertilizers derived from domestic sewage and kitchen waste – A discrete choice experiment in Germany. German Journal of Agricultural Economics 71(4) p. 169-183. ISSN: 0002-1121
spellingShingle sewage
fertilizers
food wastes
farmers' attitudes
Utai, Katrin
Narjes, Manuel
Krimly, Tatjana
Lippert, Christian
Farmers’ preferences for fertilizers derived from domestic sewage and kitchen waste – A discrete choice experiment in Germany
title Farmers’ preferences for fertilizers derived from domestic sewage and kitchen waste – A discrete choice experiment in Germany
title_full Farmers’ preferences for fertilizers derived from domestic sewage and kitchen waste – A discrete choice experiment in Germany
title_fullStr Farmers’ preferences for fertilizers derived from domestic sewage and kitchen waste – A discrete choice experiment in Germany
title_full_unstemmed Farmers’ preferences for fertilizers derived from domestic sewage and kitchen waste – A discrete choice experiment in Germany
title_short Farmers’ preferences for fertilizers derived from domestic sewage and kitchen waste – A discrete choice experiment in Germany
title_sort farmers preferences for fertilizers derived from domestic sewage and kitchen waste a discrete choice experiment in germany
topic sewage
fertilizers
food wastes
farmers' attitudes
url https://hdl.handle.net/10568/130661
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