Regenerative agriculture as a biomimetic technology

As populations increase and economic affluence expand, conventional farmers will be unable to meet the demand for food. Two main scenarios offer different solutions. The first scenario aims to further intensify scientific- and technology-driven agriculture research. The second scenario aims to radically switch to nature-based solutions in agricultural systems. There seem to be two interpretations of the nature-based solutions scenario: on the one hand, the interpretation of the IUCN regards nature-based solutions, such as regenerative agriculture, as using nature and denies a link with biomimicry; and on the other hand, the interpretation of the EU regards regenerative agriculture as an example of biomimicry. This raises the question: is regenerative agriculture a prime example of biomimicry or is it only a very important way to use nature in agriculture? To answer this question, we take a step back and philosophically reflect on biomimicry. Based on two definitions of mimesis, we distinguish between two concepts of biomimicry, a ‘strong’ concept which emphasizes natural principles and copying natural models, and a ‘weak’ concept, which emphasizes inspiration by nature and creative invention. Secondly, we describe and analyze regenerative agriculture as part of the nature-based solutions scenario and interpret regenerative agriculture first as ‘weak’ and then as ‘strong’ biomimicry. Both interpretations have their problems. To address these, we propose a new concept of biomimicry based on a new definition of mimesis. This enable us to differentiate between biomimicry, strict imitation of nature, and nature-inspired invention. We argue that our conceptualization of biomimicry helps to operationalize regenerative agriculture as a biomimetic technology.

Next Steps for Conservation Agriculture

The origins, history, and recent advances in Conservation Agriculture (CA) are reported. CA is now practiced worldwide on some 200 million hectares, important for mitigating climate change and ensuring food security. Its bedrock is Zero Tillage (ZT) with crop rotation and retention of crop residues. CA approaches Or-19 ganic Agriculture (OA) when coupled to biological control providing opportunity for OA to become truly sustainable. Ley Farming (LF) and agroforestry with ZT are important for carbon sequestration and land use intensification. Hidden cost: each ton of carbon immobilizes 83 kg of N, 29 kg of P, and 14 kg of S. Industry-backed Regenerative Agriculture (RA) variants have no scientific definition, but generally adopt CA. Sustainable, profitable, and compatible new technologies are emerging and CA needs to embrace them to present a holistic, sustainable package to the farmer. How? A single definition for agricultural sustainability via a multi-stakeholder world congress would standardize certification and de-confuse the market. RA describes exactly what CA does for soil health and all farmers need to unite around a new “Combined Regenerative Agriculture” (CRA) to lobby for adequate payments for environmental services. Expansion of CA is critical for world sustainability. Many gaps and constraints exist, especially for smallholders.

Temperate Regenerative Agriculture; a win-win for soil carbon and crop yield?

Regenerative Agriculture proposes to contribute to climate change mitigation and increased food production through improved yields by building soil organic carbon (SOC). We examine three Regenerative practices: reducing tillage intensity, cover cropping and including a grass-based phase in arable rotations (ley-arable systems). Our Bayesian meta-analysis of 195 paired SOC and crop yield observations from published studies finds statistically significant increases in SOC concentration for reduced tillage intensity (0.06 g C.100g-1) and ley-arable systems (0.05 g C.100-1g per year of ley) compared to conventional practice over an average study duration of 15 years, but no effect of cover crops. None of these practices come at a cost to yield during cropping years. However, we find no evidence of a win-win between soil carbon sequestration and enhanced agricultural productivity. Further, the small magnitude of SOC increases suggests a limited role for these Regenerative practices in climate change mitigation strategies in temperate regions.

Restoration Through Regeneration: a Scientific and Political Lens into Regenerative Agriculture in the United States

The current agricultural system in the U.S., commonly referred to as industrial agriculture, is a system where the main goal is to produce the highest possible yield of crops at the lowest cost, for both human and livestock consumption, and relies heavily on manipulation of the land with monocropping, tillage, synthetic pesticides, and fertilizers. These practices compromise biodiversity, soil health, ecosystem health, and ultimately human health. It is becoming increasingly clear that we cannot sustain conventional practices if we wish to provide a healthy food system to future generations. An alternative, known as regenerative agriculture, produces high yields while also building soil health, increasing biodiversity, improving water cycles, and sequestering carbon. To achieve these goals regenerative agriculture utilizes a core set of techniques which include no-till farming, cover cropping, increased crop diversity, integration of livestock, and the reduction or elimination of synthetic pesticides and fertilizers. Such practices have been shown to be more productive in the long term and more resilient when faced with severe weather events. Currently, there is a need for policies to help farmers implement regenerative agriculture principles, but conventional agriculture has become both politically and economically embedded in the U.S. food system. Not only do our current policies fail to adequately assist regenerative agriculture systems, they also actively support conventional agriculture through, for example, subsidy programs. This document serves as a comprehensive overview of the scientific understanding of agriculture, history of U.S. agricultural policy, key stakeholders in the field, and policy recommendations to expand regenerative agriculture.

A Study of Regenerative Farming Practices and Sustainable Coffee of Ethnic Minorities Farmers in the Central Highlands of Vietnam

Coffee is highly vulnerable to climate change, thus impacting coffee-dependent livelihoods and economies. As rising temperatures continue to reduce the suitability of many historical coffee-growing regions, some farmers are practicing regenerative, organic coffee farming as a means of climate change mitigation. In the Central Highlands, the primary coffee growing region of Vietnam, conventional sun-grown, monocrop coffee requires intensive inputs, including fertilizers, pesticides and water. However, some farmers are converting their conventional sun farms to organic shade farms utilizing regenerative farming techniques for both environmental and economic reasons. This study examined regenerative farming practices and sustainable coffee in a small ethnic minority village in Lâm Ðồng province. The comparative analysis between soil samples taken from a regenerative shade-grown coffee farm and two conventional sun-grown coffee farms revealed that the soil of the regenerative farm, enriched with organic manure, is comparable to, or healthier than, the soil on the conventional farms enriched with chemical fertilizers. The results indicate that regenerative farming practices promote biodiversity; however, they also maintain microclimates that promote the growth of Roya fungus, which can decrease coffee yields. The economic analysis of farm costs and net returns found that regenerative farming practices decrease external inputs through a system of crop diversification and integrated livestock production that improves productivity and economic performance while preserving the ecological and environmental integrity of the landscape. Regenerative agriculture is an important step toward climate change adaptation and mitigation; however, in order for the farm communities in the Central Highlands to make the transition to regenerative agriculture, the success factors and benefits of this method must be demonstrated to the coffee farmers.

Influence of the Choice of Cultivar and Soil Fertilization on PTE Concentrations in Lactuca sativa L. in the Framework of the Regenerative Agriculture Revolution

Evaluating the relative weight of the choice of cultivar and soil fertilization on potentially toxic elements (PTEs) accumulation is crucial in promoting informed decisions in the framework of regenerative agriculture. To this end, 11 PTEs (Cd, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Zn) were determined in both leaves and roots of six cultivars (Stylist, Xanadu, Aljeva, Bacio, Analena, Vincenzo) of lettuce (Lactuca sativa L.) grown side by side on mineral fertilized or biowaste compost amended soils, under greenhouse conditions. The use of multivariate and linear modelling approaches indicated that the organ and cultivar primarily account for the variability in PTE concentrations. In terms of PTE partitioning between organs, Cd and Mg were preferentially accumulated in leaves, whereas Cu, Pb, K and Zn in roots. As for the cultivar, Xanadu showed the highest concentrations of several PTEs, with Cd reaching concerning levels. Fertilization had a detectable contribution only on Cd accumulation, slightly increased in leaves by compost. Findings highlight the key role of cultivar choice in guaranteeing food safety and grant the possibility to adopt biowaste compost in regenerative agriculture without concerns about PTE accumulation enhancements in lettuce, but demand a cautionary approach in the case of Cd.

Regenerative Agriculture: farmer motivation, environment and climate improvement

Regenerative agriculture has become a social movement in farming. It embraces the environmental basis of farming. Land, water and nutrients are viewed as an ecological whole. This includes bacteria and mycorrhiza as essential to soil health and plant diversity, and mob stocking and no-till farming above ground. Regen ag, as regenerative agriculture is often called, is a paradigm shift for farmers, who are often perceived as resistant. There is a mismatch between academic and policy interest focusing on the scientific need for and value of regenerative agriculture, and the social and human motivating benefits of regenerative agriculture. This crucial willingness, not simply the turn away from denialism, is the signal significance of this new form of farming. In New Zealand and globally, climate change and environmental degradation can be addressed much more quickly, more thoroughly and less contentiously if regenerative agriculture is supported and extended, even as science documentation is achieved over time.