Wine quality under integrated, organic and biodynamic management using image-forming methods and sensory analysis

Background and aims The image-forming methods copper chloride crystallization, capillary dynamolysis and circular chromatography are presented as an instrument for assessing wine quality. Wine quality of samples from a long-term field trial comparing integrated, organic and biodynamic management were investigated by using image-forming methods and sensory analysis. Methods and results Concerning the image-forming methods copper chloride crystallization, capillary dynamolysis and circular chromatography, the images of encoded samples were (i) grouped into pairs with similar image features; (ii) characterized based on reference images (e. g. high–low resistance to degradation); (iii) ranked (according to the characterization), and (iv) assigned to the different production methods (classified). Wine samples from organic and biodynamic management needed less wine per sample for a similar expression of structural characteristics than wine samples from integrated cultivation. Organic and biodynamic samples also show structures that indicate less degeneration than integrated samples. Due to these properties, nine coded wine samples from 2010 could be (i) grouped, (ii) characterized, (iii) ranked and (iv) classified without errors, i.e., assigned to the cultivation methods of integrated, organic and biodynamic agriculture. In sensory analysis, the wine derived from biodynamic management had the highest aroma intensity. In the other parameters the differences were not significant. Conclusion Analysis with the image-forming methods copper chloride crystallization, capillary dynamolysis and circular chromatography complements sensory analysis for a more complete description of the characteristic properties of wines originating from different management systems. Significance of the study If further studies confirm these results, the image-forming methods copper chloride crystallization, capillary dynamolysis and circular chromatography may be developed as a complementary tool to sensory and chemical analysis in assessing wine quality. Graphic abstract

PRODUCTION AND DESIGN SYSTEM IN THE TERRITORY OF VITICULTURE

The cultivation of vineyards is connected with the history of humanity and with the transformations of spaces and places that in a dynamic and harmonious way provide enchantment and the production of a secular product. With the evolution of the market and changes in natural resources, a holistic and multidisciplinary approach to the cultivation of vineyards became necessary, be it in the revision, management systems and also, particularities of each soil, relief, climate, landscape to design a system for growing vines. The aim of the study: to characterize the design of the biodynamic vineyard. To this end, a descriptive case study with qualitative analysis was carried out, interviews were conducted with two owners who use the cultivation system, biodynamic agriculture. It is concluded that the need to plan the vineyard requires holistic knowledge of the entire wine production system

Hocus pocus? Spirituality and soil care in biodynamic agriculture

In this article, I participate in efforts to re-imagine soils as lively, complex, more-than-human ecologies, by turning to the largely sidestepped subject of spirituality in agriculture. Spiritual knowledge practices rarely sit comfortably alongside technoscientific, productivist accounts of soil health, and yet they can re-configure how soils are conceptualised and managed, with implications for relationships of care. Drawing on an extended period of learning with a Community Supported Agriculture project in south Wales, the article explores how care is cultivated through a non-conventional method of farming known as biodynamics, which incorporates astrological and spiritual principles. I suggest that biodynamic narratives and rituals encourage attentiveness to more-than-human agency and energy, to depth (not only underground but also above-ground influences of the air and celestial bodies), and to reciprocity between soil biota and humans. Biodynamic practices also make space for mystery, thereby resisting drives to measure and map, and offering possibilities for disrupting anthropocentric approaches to soil care. However, the example presented here also highlights how, despite biodynamic’s growing popularity, its spiritual elements have a tendency to be kept quiet, their presence sidelined by more familiar, secular, narratives. Nonetheless, I contend that if effective soil care demands more diverse knowledge practices than those that are currently obliterating critical soil communities at an alarming rate, then there can be much to learn from a touch of magic.

Metabarcoding Analysis of the Bacterial and Fungal Communities during the Maturation of Preparation 500, Used in Biodynamic Agriculture, Suggests a Rational Link between Horn and Manure

Horn manure (Preparation 500) is a product used in the practice of biodynamic agriculture. It is obtained by an underground fermentation of cow faecal material incubated in cow horns for several months. The product is used as spray treatment meant to increase soil fertility. In the present report we analyzed the successional changes in bacterial and fungal communities throughout the process of horn manure maturation by high throughput sequencing of ribosomal 16S (bacterial) and ITS (fungal) gene markers. Marked shifts in the microbial community were seen involving a general decrease from a Firmicutes-dominated material to a product transiently enriched in Proteobacteria and later in Actinobacteria, mostly within the Nocardioidaceae family. In the fungal community evolution, the most abundant taxon in the starting faecal material resulted a member of the Onygenales order, known to specifically degrade keratin. Its abundance in the intestine is explained by the fact that keratin, which is also the structural component of hairs and horns, is found in all epithelial layers, including gut mucosae. This occurrence suggests a link of enzymatic/catabolic nature between manure and horn.

TRADEOFF IN THE MANAGEMENT OF THE CULTIVATION SYSTEM IN THE AGRICULTURAL PRODUCTION UNIT OF CHARDONNAY VINIFERA.

The study analyzed the variables that interfere in the choice of the soil cultivation system, using conventional and/or biodynamic agricultural practices for the production of Vitis vinifera grapes. The method was an exploratory and descriptive quali-quanti analysis study. The intentional sample, for convenience and non-probability, included 26 vineyards of Vitis vinifera Chardonnay, 19 of which were conventional vineyards and seven in transition to the cultivation system using biodynamic farming practices. It was concluded that economic variables are the driving force in decision making, rather than environmental or social issues in the management of the cultivation system, as well it has also been noticed that some properties are seeking new cultivation practices. In the case of biodynamic agriculture, however, there is a faint signal that environmental issues may gain greater value in equalizing alternatives for decision-making in vineyard management and especially in soil care.

Could biodynamics help bridge the gap in developing farmer intuition?

Several scientific studies indicate that farmers do not often use formalised decision support tools as expected, and many prefer to rely on their intuition to make practical management decisions. While agricultural science and education acknowledge the different types of knowledge that farmers utilize, intuition continues to receive little attention in agricultural science, indicating a gap in farmer decision-making research.The mechanism driving intuition remains under debate, but is described as a pervasive, involuntary, rapid way of knowing, offering access to tacit (internal, intangible) knowledge that complements analytic processes. Many studies agree that intuition can be trained to increase accuracy and reliability. However, the comprehensive works on intuition by Rudolf Steiner hardly feature in modern science, and yet his writings and biodynamic agriculture approach offer farmers and non-farmers guidelines for systematic development of subtle abilities like intuition.There may be value in collaborative, transdisciplinary exploration between agricultural research and biodynamic theory and practice, for supporting farmers to develop their intuitive knowing. Such an alliance could help increase the awareness and practice of biodynamics, expand the knowledge base and lexicon for the em erging research field of intuitive farming, and help reinvigorate agricultural research toward more efficient, customized and connected farming practices.

Biodynamic preparations on static pile composting from prickly pear cactus and moringa crop wastes

Biodynamic agriculture, which considered biodynamic preparations (BP) and compost as essential to farms sustainability, surged as an alternative almost a century ago. Composting is a way to obtain either biofertilizers or soil amendments, whereas the static piles method reduces energy and cost because no turnings are needed. The present study aims to evaluate the BP effect on physical, chemical and biological properties of static piles compost from prickly pear cactus and moringa crop wastes (regional principal substrates) over 100 days of composting. The experiment was carried out in an organic farm (Nuevo León, Mexico) considering four treatments: T1, Prickly pear cactus+BP; T2, Moringa+BP; T3, Prickly pear cactus and T4, Moringa. Results showed significantly higher bacterial activity (p<0.05) in T1 (until 1.38x1010CFU), therefore it had the highest temperatures and mineralization. Treatments with prickly pear cactus attained the highest temperatures, compared with those with moringa (significantly in 71% of total sampling days, p<0.05). An aerobic environment was maintained by the passive aeration system (holed PVC pipes placed at the bottom layer). The final material was considered to be sanitized, according to Enterobacteriaceae,Escherichia coliandSalmonella/Shigellaanalysis for quality control. Results indicate the BP efficiency on regional substrates decomposition, by using the static piles method.

Soybean crop profitability: biodynamic vs conventional farming in a 7-yr case study in Brazil

Organic/biodynamic agriculture has been reported worldwide as a suitable system to conserve or even regenerate natural resources. Due to the lack of long-term studies regarding the profitability of tropical organic vs conventional farming, the economic performance of biodynamic vs conventional soybean was studied using data from a consecutive 7-yr case study in a farm with 48.4 ha of biodynamic soybeans in Paraná State, Brazil. Analyses of production costs and financial indicators were adjusted at updated values according to inflation in the period. Effective operational costs were 4.4% higher in biodynamic than in conventional farming. The biodynamic yields were lower (3.6%) than those of conventional. Prices were 57% higher in biodynamic than in conventional, making biodynamic farming more profitable than conventional farming, as shown by financial indicators (gross revenue, gross margin, net margin, net income and capital income were 50.7, 99.9, 122.9, 150.4 and 166.9%, respectively, higher in biodynamic than in conventional). The price equilibrium point (PEP) was 3.4% higher for biodynamic farming; the leveling point was 36.9% higher for conventional farming. Manual weeding and plowing increased organic costs. Higher biodynamic trading prices than those of conventional triggered a PEP suitable for covering higher costs and thus boosting profitability. Further investigations and policies are suggested to further improve biodynamic farming efficiency and sustainability.