Achieving Global Food Security through Sustainable Development of Agriculture and Food Systems with Regard to Nutrients, Soil, Land, and Waste Management

Díaz‐Ambrona, Carlos Gregorio Hernández; Maletta, E.

doi:10.1007/s40518-014-0009-2

Cited by 16 publications

(11 citation statements)

References 40 publications

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“…However, space for agricultural use of soils is limited, as other human needs and natural resources compete for this space [ 5 , 6 ]. Given this limitation for space, intensive agricultural management systems, including continuously growing the same crop, have been developed to help to meet the increasing food demands of a growing human population [ 7 – 9 ]. However, such continuous cropping systems commonly suffer from a buildup of soil-borne plant pathogens [ 10 ], an imbalance in nutrient availability [ 8 ], and a reduction of soil fertility [ 11 – 13 ], which together can negatively affect yield [ 14 – 16 ].…”

Section: Introductionmentioning

confidence: 99%

Protists as main indicators and determinants of plant performance

Guo

Xiong

Hang³

et al. 2021

Microbiome

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Background Microbiomes play vital roles in plant health and performance, and the development of plant beneficial microbiomes can be steered by organic fertilizer inputs. Especially well-studied are fertilizer-induced changes on bacteria and fungi and how changes in these groups alter plant performance. However, impacts on protist communities, including their trophic interactions within the microbiome and consequences on plant performance remain largely unknown. Here, we tracked the entire microbiome, including bacteria, fungi, and protists, over six growing seasons of cucumber under different fertilization regimes (conventional, organic, and Trichoderma bio-organic fertilization) and linked microbial data to plant yield to identify plant growth-promoting microbes. Results Yields were higher in the (bio-)organic fertilization treatments. Soil abiotic conditions were altered by the fertilization regime, with the prominent effects coming from the (bio-)organic fertilization treatments. Those treatments also led to the pronounced shifts in protistan communities, especially microbivorous cercozoan protists. We found positive correlations of these protists with plant yield and the density of potentially plant-beneficial microorganisms. We further explored the mechanistic ramifications of these relationships via greenhouse experiments, showing that cercozoan protists can positively impact plant growth, potentially via interactions with plant-beneficial microorganisms including Trichoderma, the biological agent delivered by the bio-fertilizer. Conclusions We show that protists may play central roles in stimulating plant performance through microbiome interactions. Future agricultural practices might aim to specifically enhance plant beneficial protists or apply those protists as novel, sustainable biofertilizers.

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Section: Introductionmentioning

confidence: 99%

Protists as main indicators and determinants of plant performance

Guo

Xiong

Hang³

et al. 2021

Microbiome

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“…Following the debate of food security, literature has pointed out three dimensions of the food production that need to be taken into account: the food quantity (Timmons et al 2008;Morrison et al 2011;Filippini et al 2014;Sonnino 2014;Opitz et al 2015) and the food quality (Morrison et al 2011;Sonnino 2014;Opitz et al 2015) along with the ecosystem services provided by the intensity of food production (FAO 2010;Schneider et al 2011;Fish et al 2012;Wortman and Lovell 2013;Diaz-Ambrona and Maletta 2014).…”

Section: Food Quality Quantity and Crop Production Intensity As The mentioning

confidence: 99%

Unraveling the contribution of periurban farming systems to urban food security in developed countries

Filippini

Lardon

Bonari

et al. 2018

Agron. Sustain. Dev.

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The debates on food security in developed countries have raised questions regarding the capacity of periurban farming systems to provide food for urban dwellers. Attention thus needs to be paid to what kind of food production is performed nearby cities. This study aims at developing a methodology to characterize the food production provided by periurban farming systems in terms of quality, quantity and crop production intensity. The case study is the Pisa's urban area (Tuscany, Italy), which is illustrative of coastal Northern Mediterranean farming systems. The methodology was based on the construction of farm typologies considering 51 on-farm surveys using multivariate statistics (principal component analysis and cluster analysis). Farms were classified into six types, considering seven on-farm indicators. Results showed that the amount of production sold in the local food system is negatively correlated to the farm's size and the amount of on-farm food production, thus indicating for local food policies the need to support the food allocation in local markets through specific agri-urban projects. In terms of food quality, we have shown for the first time that local food labels seem to positively impact urban markets rather than organic labels. Crop production intensity indicators have heterogeneous dynamics, which do not seem to depend on the farming system, nor on the farm's involvement in local food systems. This could be an effect of the proximity to urban areas, a specific character of periurban farming systems, that should be carefully investigated in future research. This is the first time that territorial food production is analyzed combining indicators on food quantity, quality and crop production intensity at the farm level. Our results demonstrate that the highly heterogeneous dynamics of periurban farming systems in developed countries need to be accurately analyzed to develop more efficient food policies with benefits for the urban food security.

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“…At the same time, there is an abundance of phosphorus-rich organic waste being produced municipally, agriculturally, and industrially (Karunanithi et al, 2015). The development of technologies for nutrient-recovery from such waste streams presents an opportunity to develop a circular nutrient economy, sustainable agricultural practices and maintain global food security (Diaz-Ambrona and Maletta, 2014;Harder et al, 2021). However, not all phosphate fertilizers are made equal, particularly those recovered from organic waste, which can contain components such as antibiotic residues and heavy metals that may affect soil ecosystems (Vollú et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

The Impact of Bio-Based Fertilizer Integration Into Conventional Grassland Fertilization Programmes on Soil Bacterial, Fungal, and Nematode Communities

Ryan

Karpinska

Forrestal

et al. 2022

Front. Sustain. Food Syst.

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Phosphorus (P) is an essential plant macro-nutrient applied to soil in agriculture, mainly sourced from non-renewable mined phosphate-rock, of which readily accessible reserves are currently under pressure, while global food demand continues to grow. Meanwhile, an abundance of P is lost in waste-streams. Hence, bio-based fertilizers are increasingly produced using nutrient-recovery technologies and evaluated as a sustainable fertilizer alternative. However, there is little knowledge of how these products affect soil microorganisms. In this study, four new phosphate bio-based fertilizers (two struvite and two incinerator ashes) were assessed in permanent grassland-plots to understand their impact on soil bacterial, fungal, and nematode community responses. The experiment consisted of 40 plots (each 6 × 2 m2) of 8 treatments (2 struvite, 2 ash, cattle slurry, 100% mineral fertilizer, zero P fertilizer, and a control without fertilization) with 5 replications arranged in a randomized complete block design. Community data were obtained by amplicon sequencing of DNA extracted from soil samples and subsequent analysis of community composition, diversity, structure and influencing environmental variables. Diversity of the soil microorganisms was maintained by all bio-based fertilizer treatments. Results showed that soil bacterial, fungal, and nematode communities of the struvite-treatments were similar to those in 100% mineral treatment. Communities in ash-treatments were more disturbed in their compositions, abundances and structures, possibly due to their high pH and heavy metal content. From canonical correspondence analysis, available P, K, and Mg, as well as plant P uptake and biomass yield, were identified as factors significantly influencing bacterial and nematode communities across different treatment groups. In particular, the abundance of environmental disturbance sensitive nematodes (e.g., Dorylaimida) was significantly reduced by one of the ash products. Overall, results indicate that both struvites are benign to soil bacterial, fungal, and nematode communities and can be safely applied as a source of renewable P to meet crop nutrition requirement. The ash products require further investigations before recommending their regular application as fertilizer. As the application of novel bio-based fertilizers will increase in the foreseeable future, the findings of this study would be valuable to feed into developing environmental risk assessment protocols.

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Achieving Global Food Security through Sustainable Development of Agriculture and Food Systems with Regard to Nutrients, Soil, Land, and Waste Management

Cited by 16 publications

References 40 publications

Protists as main indicators and determinants of plant performance

Protists as main indicators and determinants of plant performance

Unraveling the contribution of periurban farming systems to urban food security in developed countries

The Impact of Bio-Based Fertilizer Integration Into Conventional Grassland Fertilization Programmes on Soil Bacterial, Fungal, and Nematode Communities

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