Just Transition for Agriculture? A Critical Step in Tackling Climate Change

Blattner, Charlotte E.

doi:10.5304/jafscd.2020.093.006

Cited by 36 publications

(22 citation statements)

References 7 publications

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“…At the same time, the high impact of agriculture on the environment means that future solutions will need to be more sustainable and eco-friendly (Sarkar et al 2020). Cropping systems will also need to be more resilient to climate change, which will place intense pressure on agriculture in the coming decades (Blattner 2020).…”

Section: Introductionmentioning

confidence: 99%

Physiological and Biochemical Effects of an Aqueous Extract of Lemna minor L. as a Potential Biostimulant for Maize

Buono

Bartucca

Ballerini

et al. 2021

J Plant Growth Regul

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Biostimulants are receiving increasing attention for their beneficial effects on crops, driving interest in identifying new plant extracts that could exert such stimulatory effects. This work aimed to evaluate the potential of an aqueous extract obtained from duckweed (Lemna minor L.), a freshwater species, to act as a biostimulant in maize. For this purpose, duckweed plants were collected from a natural basin and then transferred, stabilized, and grown under controlled conditions. The duckweed extract was first characterized through untargeted profiling, which revealed an abundance of bioactive phytochemicals. A relatively high amount of low-molecular-weight secondary metabolites such as phenolics (6714.99 mg kg−1) and glucosinolates (4563.74 mg kg−1) were present in the plant extract. Maize seeds were primed with different concentrations of this extract (0.01%, 0.05%, 0.50%, and 1.00%, dry weight/water volume), and some physiological and biochemical traits of the crop were recorded. The duckweed extract improved maize germination, biomass, leaf area, pigment content, and vigor index. The most effective treatment was the 0.50% concentration, which improved the majority of the measured growth traits. The extract at concentrations of 0.05%, 0.50%, and 1.00% stimulated the assimilation of nitrogen (N), phosphorous (P), potassium (K), calcium (Ca), magnesium (Mg), sodium (Na), iron (Fe), and copper (Cu). In summary, this study revealed that duckweed is a promising species that can be cultured and grown under controlled conditions for obtaining extracts with biostimulant properties.

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Section: Introductionmentioning

confidence: 99%

Physiological and Biochemical Effects of an Aqueous Extract of Lemna minor L. as a Potential Biostimulant for Maize

Buono

Bartucca

Ballerini

et al. 2021

J Plant Growth Regul

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“…The Food and Agriculture Organization (FAO) of the United Nations (UN) predicts a 34% increase in the human population by 2050, concentrated mainly in urban areas, which will restrict the production and distribution of food and result in hunger and malnutrition, especially among low-income groups (Philippidis et al, 2021). In this context, the combined effect of population growth and climate change will have a major impact on agricultural production, driven by increased demand for food production (Blattner, 2020).…”

Section: Climate Change and Cowpea Cultivation In Semi-arid Environmentsmentioning

confidence: 99%

Water restriction in cowpea plants [Vigna unguiculata (L.) Walp.]: Metabolic changes and tolerance induction

Melo

Lacerda

et al. 2022

Rev. bras. eng. agríc. ambient.

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Global climate change tends to intensify water unavailability, especially in semi-arid regions, directly impacting agricultural production. Cowpea is one of the crops with great socio-economic importance in the Brazilian semi-arid region, cultivated mainly under rainfed farming and considered moderately tolerant to water restriction. This species has physiological and biochemical mechanisms of adaptation to these stress factors, but there is still no clear vision of how these responses can not only allow survival, but also ensure yield advances in the field. Besides acclimation mechanisms, the exogenous application of abiotic (salicylic acid, silicon, proline, methionine, and potassium nitrate) and biotic (rhizobacteria) elicitors is promising in mitigating the effects of water restriction. The present literature review discusses the acclimation mechanisms of cowpea and some cultivation techniques, especially the application of elicitors, which can contribute to maintaining crop yield under different water scenarios. The application of elicitors is an alternative way to increase the sustainability of production in rainfed farming in semi-arid regions. However, the use of eliciting substances in cowpea still needs to be carefully explored, given the difficulties caused by genotypic and edaphoclimatic variability under field conditions.

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“…By contrast, a sole focus on maximizing the efficiency of land resources for nutrition and carbon sequestration risks overlooking the diverse social and cultural roles of livestock systems. The need to provide for a 'just transition' for livestock farmers under ambitious climate policies remains underexplored in academic literature and policy [131][132][133][134].…”

Section: Integrating Methane Mitigation Into a Broader Contextmentioning

confidence: 99%

How necessary and feasible are reductions of methane emissions from livestock to support stringent temperature goals?

Reisinger

Clark²,

Cowie

et al. 2021

Phil. Trans. R. Soc. A.

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Agriculture is the largest single source of global anthropogenic methane (CH 4 ) emissions, with ruminants the dominant contributor. Livestock CH 4 emissions are projected to grow another 30% by 2050 under current policies, yet few countries have set targets or are implementing policies to reduce emissions in absolute terms. The reason for this limited ambition may be linked not only to the underpinning role of livestock for nutrition and livelihoods in many countries but also diverging perspectives on the importance of mitigating these emissions, given the short atmospheric lifetime of CH 4 . Here, we show that in mitigation pathways that limit warming to 1.5°C, which include cost-effective reductions from all emission sources, the contribution of future livestock CH 4 emissions to global warming in 2050 is about one-third of that from future net carbon dioxide emissions. Future livestock CH 4 emissions, therefore, significantly constrain the remaining carbon budget and the ability to meet stringent temperature limits. We review options to address livestock CH 4 emissions through more efficient production, technological advances and demand-side changes, and their interactions with land-based carbon sequestration. We conclude that bringing livestock into mainstream mitigation policies, while recognizing their unique social, cultural and economic roles, would make an important contribution towards reaching the temperature goal of the Paris Agreement and is vital for a limit of 1.5°C. This article is part of a discussion meeting issue 'Rising methane: is warming feeding warming? (part 1)'.

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Just Transition for Agriculture? A Critical Step in Tackling Climate Change

Cited by 36 publications

References 7 publications

Physiological and Biochemical Effects of an Aqueous Extract of Lemna minor L. as a Potential Biostimulant for Maize

Physiological and Biochemical Effects of an Aqueous Extract of Lemna minor L. as a Potential Biostimulant for Maize

Water restriction in cowpea plants [Vigna unguiculata (L.) Walp.]: Metabolic changes and tolerance induction

How necessary and feasible are reductions of methane emissions from livestock to support stringent temperature goals?

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