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

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Title Farmers’ preferences for fertilizers derived from domestic sewage and kitchen waste – A discrete choice experiment in Germany
 
Creator Utai, Katrin
Narjes, Manuel
Krimly, Tatjana
Lippert, Christian
 
Subject sewage
fertilizers
food wastes
farmers' attitudes
 
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.
 
Date 2022-08-06
2023-06-06T14:08:06Z
2023-06-06T14:08:06Z
 
Type Journal Article
 
Identifier 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
0002-1121
https://hdl.handle.net/10568/130661
https://doi.org/10.30430/gjae.2022.0235
 
Language en
 
Rights Copyrighted; all rights reserved
Limited Access
 
Format 169-183
 
Publisher Deutscher Fachverlag
 
Source German Journal of Agricultural Economics