1. Introduction
The foundations of biodynamic agriculture can be attributed to Rudolf Steiner (1861–1925), an Austrian philosopher and the father of anthroposophy. In 1924, Steiner delivered a series of eight lectures to a group of farmers, aimed at addressing the challenges of yield loss, crop diseases, and other issues that had emerged in inter-war agriculture, which was increasingly influenced by the use of chemical fertilisers and synthetic pesticides [
1]. Although agriculture comprised only a minor part of Steiner’s work, these lectures were pivotal in fostering a new perspective on farming. Steiner introduced a vision in which the health of soil, plants, and animals is intertwined with the cosmic forces that impart rhythm and structure to their existence. He compared the farm to a living organism, where all components must interact and be set in motion by an impetus, the conscious will of the farmer. He emphasised the significance of practical field trials. Steiner’s lectures had a considerable impact on the emergence of organic farming, and its vision aligned with the principles of agroecology.
Following Steiner’s lectures, farmers and practitioners gathered to exchange their experiences and promote the methods they had learned. They established common standards and practices, fostering a community dedicated to biodynamic agriculture. Consequently, a cooperative named Demeter was established in Germany to process and market products from biodynamic farms. It was not until 1932 that the Demeter Association (Demeter Wirtschaftsverband) was formed to certify biodynamic products. Although the Demeter Association was dissolved during the Second World War but was revived in 1946 by the Anthroposophical Farmers’ Research Circle [
2], which subsequently created a brand that was trademarked in Europe, securing its intellectual property rights in 1954. In 1997, Demeter International was established and merged with the International Biodynamic Association in 2020 to create the Biodynamic Federation Demeter International (FBDI). This federation defines the international standards for the Demeter label, a certification mark for products that are produced according to biodynamic farming principles [
3].
In France, the Demeter label was recognised by the Ministry of Agriculture in 1982, preceding the Organic Farming label, which was introduced in 1981 and officially recognised in 1991. Originally created for food products, cosmetics, and textiles, the Demeter label quickly expanded to include regulations for viticulture and oenology [
2]. In 1995, a separate label specifically for viticultural and oenological practices was established by a group of winegrowers practising biodynamic methods, known as the Biodyvin label [
4].
Regarding viticulture, both labels require organic practices in the vineyard (prohibiting synthetic pesticides and fertilisers); however, the Demeter label is stricter than the Biodyvin label concerning the permissible amount of copper used in the vineyard to protect crops, with limits set at 3 kg/ha/year for Demeter and 4 kg/ha/year for Biodyvin. Both labels require the use of biodynamic preparations 500 and 501, and compost preparations derived from seven plants (nettles, horsetail, dandelion, chamomile, valerian, yarrow, and oak bark), either in compost form, as Maria Thun compost, or 500P [
5]. Concerning wine production, both labels stipulate that alcoholic fermentation must occur using the yeasts naturally present on the grapes and in the cellar. The total sulphur content in the finished wine is also regulated: for a dry red wine aged for over nine months, Demeter permits a maximum of 70 mg/L of total SO
2, while Biodyvin allows 110 mg/L [
6,
7]. The requirements of both labels may seem restrictive in relation to Steiner’s original vision. They can be challenging to adhere to under conditions of significant mildew pressure in vineyards or in estates producing barrel-aged wines.
Rudolf Steiner intended for the method he described to be widely adopted, “for everybody, for all farmers” [
1]. For nearly a century, Steiner’s philosophy has been largely overlooked. It was only in the early 2000s that a handful of farmers “rediscovered” biodynamics. According to Paull and Hennig, biodynamic practices were present in only 55 of the 183 countries practising organic farming in 2020, representing approximately 30% of these nations [
8]. In 2020, Europe remained the continent with the highest prevalence of biodynamic farming, with a significant presence in Germany (34% of global biodynamic practices) and France (6%). Australia ranked second, accounting for 20% of the total biodynamic surface area. These figures only represent certified biodynamic practices, but many farmers employ biodynamic methods without seeking official recognition [
8].
In terms of scientific research, there are currently few scientific, peer-reviewed articles focusing on biodynamic practices. Taking biodynamic viticulture as an example, approximately fifty articles investigated biodynamics and its effects on soil, plants, and wine quality. A dozen of these articles were published in the 1990s, with the majority emerging during the 2010–2020 decade. Research in this area is gradually expanding.
Some research associations conduct trials and compile results on biodynamic agriculture, but very few implement controls, resulting in their findings being largely disregarded by the scientific community. For instance, the DOK trial, initiated in Switzerland in 1978 by the FIBL (research institute of organic Agriculture), compared biodynamic, organo-biological, and integrated farming systems by reproducing these methods in a microplot setup [
9]. In France, notable research associations include Biodynamie Recherche [
10] and Soin de la Terre [
11], among others.
Biodynamic agriculture suffers from its anthroposophical heritage. According to Alexandre Grandjean, 39 out of 40 Swiss practitioners do not claim to belong to the biodynamic movement, which is often perceived as spiritual or religious. They are familiar with Steiner’s lectures and principles in a fragmented manner, utilising the biodynamic pharmacopoeia primarily as a foundation for holistic farming practices centred on plant and soil health. These practices are believed to yield more natural crops that reflect their terroir [
12].
The French wine industry is currently undergoing a transition marked by significant commitments to environmental sustainability and social acceptance, which involve reducing the use of the most toxic pesticides and replacing them with natural alternatives in the context of high sanitary pressure [
13], enhancing biodiversity in vineyards where monoculture has become prevalent [
14], lowering the carbon footprint by 2050 [
15], and exploring methods for adapting to climate change [
16]. Consequently, winegrowers must identify innovative technical pathways to address these requirements.
In this context, a variety of tools are available to farmers, ranging from precision farming to regenerative agriculture, agroforestry, or permaculture; however, choosing among these options is not easy. These decisions will depend on the farmer’s perspective, culture, and history. Rigolot draws a parallel between the worldviews articulated in the literature and the visions of farmers. He argues that it is crucial to understand one’s own worldview, as well as that of others, in order to integrate diverse perspectives and facilitate a shared transformation [
17].
Initiated by Durkheim, the concept of individual representations has been extensively employed by Foucault to describe the tools through which we “perceive and understand” the world. Shared individual representations give rise to social representations, which form the foundational basis of cultures. Studying these representations aids in understanding human behaviour [
18].
What are the different representations of biodynamics within the wine industry? Are these representations influenced by the wine-growing region or the profiles of the practitioners? How might they affect the industry and the decisions of growers to adopt or reject the biodynamic method? These are the questions addressed in this paper.
2. Materials and Methods
Biodynamics has two distinctive characteristics. Firstly, it is often a broad and empirical practice, making it difficult to establish a specific protocol, identify the effects to observe, and find elements that can be reliably replicated across different contexts. Secondly, it is a topic that provokes considerable discussion and debate within the industry.
We believed that engaging in a dialogue with a panel of viticulturists could provide valuable insights into the biological effects that researchers need to explore. Furthermore, this dialogue would enhance the understanding of the diverse perspectives on the method, fostering more constructive discussions among winegrowers.
2.1. Number of Interviewees
Determining the appropriate number of interviewees for statistical robustness in a qualitative study is challenging. Numerous methods exist for estimating the minimum sample size which depend on the type of study, the nature of the and the dynamics of the anticipated dataset.
For example, scholars such as Janice M. Morse have advocated for selecting a suitable number of participants to reach saturation—the point at which no new information or themes emerge from the data [
19]. According to Morse, this number depends on various factors: the study’s objectives, the nature of the subject, the study design, and the quality of the data collected. If the objectives are narrow, the subject is clear to the interviewees, and the panel is successfully selected to yield quality data, the number of participants can be reduced to between 6 and 10 interviewees. If these conditions are not met, it is advisable to increase the number of participants to between 20 and 30. When the amount of information obtained per participant is minimal, interviewing 30 to 60 participants is preferable [
20]. Other authors, like Greg Guest suggested that in a relatively homogeneous group, important themes and insights can emerge early in the data collection process and 12 interviews can suffice to “understand common perceptions and experiences among a group of relatively homogeneous individuals” [
21].
In our case, we interviewed 30 individuals. Given that our questions are structured, our objectives are clearly defined, and our interviewees possess relevant experience, we consider this number sufficient to provide statistical robustness while remaining manageable for completion within a year.
2.2. Recruitment of Participants and Informed Consent
Participants were recruited through announcements sent via email to professionals across several wine-growing regions. No compensation was provided for their participation. The information collected respects participant privacy; names and surnames were not recorded, and participants were identified by a numerical code ranging from 1 to 30, with no correlation to their identities. Consequently, the texts obtained from the interviews are anonymous and will not be disseminated. Informed consent was obtained from participants to ensure they fully understand the implications of the research.
2.3. Typology of Interviewees
The thirty interviewees are wine professionals working across four different regions of France: Bordeaux (65%), Burgundy (23%), Loire (6%), and Languedoc-Roussillon (6%). They hold various positions within the wine industry, operating as owners (42%), directors (32%), technicians (13%), and advisors (13%). The study panel is predominantly male (83%) and comprises individuals with diverse educational backgrounds, with agronomists (42%) and oenologists (39%) being the largest groups. While 84% of the panel interviewed practise biodynamics, only 22% are certified (
Figure 1).
2.4. Semi-Directive Interviews
During the semi-directive interviews, eleven questions (
Supplementary Material, Figure S1) were asked regarding the participants’ definitions of biodynamic agriculture, their practices, and their understanding of the effects of biodynamic preparations on plants, grapes, and wines. The responses were recorded and transcribed in French.
2.5. Textual Analysis
Textual analysis relies on a statistical examination of the words within a text. The development of this tool has been facilitated by the advent of computers. Michel Benzecri is considered the father of textual analysis in France, having been the first to apply multidimensional statistics to textual data [
22]. One of his students, Max Reinert, developed a dedicated tool for analysing a set of texts based on a chi-squared matrix [
23].
The corpus obtained from the interviews was analysed using Alceste software (Analyse de Lexèmes Co-occurrents dans un Ensemble de Segments de Textes; Reinert, 1986, Image Ltd., Toulouse, France, version 2018). In textual analysis, the corpus is divided by the author into initial context units (UCIs). When preparing the corpus, UCIs are associated with characteristics such as the job position or the educational background of the interviewees. A selection of these characteristics is attached to the relevant UCI and marked with “stars” in the corpus, hence the term “starred words” [
24].
A bound morpheme corresponds to a group of text units sharing the same root. For instance, the words “levure,” “levuré,” and “levurage” are replaced by the lexeme “levur.” The reduced terms fall into two categories: analysable terms (nouns, verbs, adjectives, and adverbs) and illustrative terms (prepositions, pronouns, conjunctions, auxiliaries, and starred words) [
24].
Next, a hierarchical ascending classification (HAC) is performed using only the analysable terms, dividing the corpus into classes. Alceste employs χ
2 calculations to measure the probability of a lexeme being used in a particular class. The higher the χ
2 value between a lexeme and a class, the stronger the contribution of that term to defining the class. Conversely, a lower χ
2 indicates a weaker association. The terms within each class are presented in descending order of χ
2 [
23,
24].
The software does not provide interpretations of the classes; instead, the researcher interprets the classes based on their contents, including the presence or absence of terms (negative χ
2), while the starred words contribute equally and solely to the interpretation [
24]. A thorough understanding of a class’s content is best achieved by examining the complete lexical field all at once.
The Alceste method is widely used in various contexts; for example, it can be used to analyse collections of scientific reports or evaluations of research topics. Yvette Vaquet and Philippe Jeanne employed Alceste to analyse reports from the International Congress of Arctic Social Sciences (ICASS), assessing continuity and evolution in high-latitude research [
25]. Frédéric Brochet analysed expert tasting notes using Alceste in his studies on wine perception, revealing different strategies in expert discourse [
26]. Alceste can also be used to analyse patient discourse to understand psychological and emotional functioning. For instance, Villatte and de Léonardis studied the discourse of young adolescents with high intellectual potential to assess their perspectives on the question “Who am I?” They found that gender, age, and socio-cultural background are more significant than intellectual ability in shaping categories of existential reflection [
27].
Other studies have analysed patient discourse before and after specific treatments, such as Devienne’s analysis of speech following photo-expression therapy for diabetic patients [
28].
All these authors agree that computer analysis using Alceste reveals representations that would otherwise remain concealed. However, these representations may be reductive, as they take into account only semantics, while discourse encompasses other crucial elements—what Kalampalikis refers to as the pragmatic requirements of language. We must not underestimate the influence of relational modes, social conditions, and expressive possibilities in the formation of representations [
29].
2.6. Corpus
A single corpus comprising 84,408 characters was created by compiling the thirty interviews in text format. Each of the eleven questions posed to the thirty interviewees was tagged with eight attributes or starred words: job position, educational background, age, gender, region of work, size of property (if applicable), biodynamic practices, and potential biodynamic certification.
Figure 2 provides an example of a response from one interviewee: a young female manager in Bordeaux, practising non-certified biodynamics, qualified in business and viticulture. She is responding to the second question regarding the advantages and disadvantages of biodynamical practices.
5. Conclusions
This study has provided an overview of the various representations of biodynamics within the French wine industry. Four perspectives have been described in this analysis, yet many other viewpoints exist within the sector. These diverse perspectives represent a rich resource that can be leveraged and confronted to help agricultural systems evolve.
Steiner’s fundamentals can pose obstacles to the practical application of biodynamics in viticulture. It is crucial to move beyond these foundational principles and develop one’s own reasoning in order to embrace and reinvent these practices. Biodynamics fosters a relationship between the plant, the environment, and the farmer through a transdisciplinary and holistic approach. An increasing number of experimental studies demonstrate the effects of biodynamic preparations on soil microorganisms and plant resilience. To translate these findings into biodynamic practices, collaboration between scientists and practitioners is essential, taking into account the holistic vision of practitioners while defining effective and reproducible methods in the field.
To assist winemakers in developing their own methods based on solid evidence, it is necessary to define clear hypotheses regarding the effects of biodynamic practices by formulating specific, field-testable scenarios and standardising traits and measurement methods to allow for the comparison of datasets over time and across different terroirs. This involves designing controlled experiments; establishing protocols that include both control and biodynamically treated modalities for comparison; collecting quantitative and qualitative data; including biological measurements and practitioner observations; analysing the collected data using appropriate statistical techniques to determine the significance of the results; and publishing and sharing findings for validation and practical application.
A transdisciplinary approach that encompasses all existing representations within the wine industry—such as field experiments, fundamental biological research, participatory studies, and social and anthropological investigations—is essential for the understanding, acceptance, and evolution of biodynamics in viticulture.