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1.
Res Synth Methods ; 12(1): 62-73, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32729218

RESUMO

The on-farm research network concept enables a group of farmers to test new agricultural management practices under local conditions with support from local researchers or agronomists. Different on-farm trials based on the same experimental design are conducted over several years and sites to test the effectiveness of different innovative management practices aimed at increasing crop productivity and profitability. As a larger amount of historical trial data are being accumulated, data of all the trials require analyses and summarization. Summaries of on-farm trials are usually presented to farmers as individual field reports, which are not optimal for the dissemination of results and decision making. A more practical communication method is needed to enhance result communication and decision making. R Shiny is a new rapidly developing technology for turning R data analyses into interactive web applications. For the first time for on-farm research networks, we developed and launched an interactive web tool called ISOFAST using R Shiny. ISOFAST simultaneously reports all trial results about the same management practice to simplify interpretation of multi-site and multi-year summaries. We used a random-effects model to synthetize treatment differences at both the individual trial and network levels and generate new knowledge for farmers and agronomists. The friendly interface enables users to explore trial summaries, access model outputs, and perform economic analysis at their fingertips. This paper describes a case-study to illustrate how to use the tool and make agronomic management decisions based on the on-farm trial data. We also provided technical details and guidance for developing a similar interactive visualization tool customized for on-farm research network. ISOFAST is currently available at https://analytics.iasoybeans.com/cool-apps/ISOFAST/.


Assuntos
Agricultura/organização & administração , Visualização de Dados , Fazendas , Software , Agricultura/estatística & dados numéricos , Produção Agrícola/economia , Produção Agrícola/organização & administração , Produção Agrícola/estatística & dados numéricos , Técnicas de Apoio para a Decisão , Fazendeiros , Fazendas/estatística & dados numéricos , Fertilizantes , Humanos , Internet , Modelos Estatísticos , Nitrogênio/administração & dosagem , Glycine max/crescimento & desenvolvimento
2.
PLoS One ; 15(10): e0240140, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33027300

RESUMO

In the context of supply-side structural reform, revealing the characteristics of spatial-temporal dynamics and influencing factors of China's apple production layout is of great significance to ensure apple supply and demand balance and timely adjustment of industrial policies and regional layout strategies. Based on national and provincial apple production data from 1978 to 2016, this study used the apple production concentration index to analyse the evolution characteristics of regional apple production patterns in China. A theoretical analysis framework was established and a spatial econometric model was used to quantitatively explore the influencing factors of China's apple production layout. The results showed that, first, since the reform and opening-up policy, a general trend of fluctuating growth was found for apple production in China. The centre of apple production layout moved in the southwest direction, with the shift from the Bohai Bay region to the Loess Plateau region. Second, apple production had a significant spatial correlation, while the degree of spatial agglomeration gradually decreased. Third, these changes were significantly influenced by apple comparative income, infrastructure, policies, and climatic conditions. Therefore, it is necessary to continue optimizing and adjusting the apple spatial layout to enhance the technological progress and economic effect of the apple industry and to ensure the stability and balance of regional supply and demand.


Assuntos
Produção Agrícola/tendências , Desenvolvimento Econômico/tendências , Malus , Modelos Econométricos , Políticas , China , Produção Agrícola/economia , Produção Agrícola/organização & administração , Produção Agrícola/estatística & dados numéricos , Desenvolvimento Econômico/estatística & dados numéricos , Pesquisa Empírica , Mudança Social , Análise Espaço-Temporal
3.
PLoS One ; 15(3): e0229910, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32163455

RESUMO

Innovations supporting a shift towards more sustainable food systems can be developed within the dominant food system regime or in alternative niches. No study has compared the challenges faced in each context. This paper, based on an analysis of 25 cases of European innovations that support crop diversification, explores the extent to which barriers to crop diversification can be related to the proximity of innovation settings with dominant food systems. Drawing on a qualitative analysis of interviews and participatory brainstorming, we highlight 46 different barriers to crop diversification across the cases, at different levels: production; downstream operations from farm to retailing, marketing and consumers; and contracts and coordination between actors. To characterise the diversity of innovation strategies at food system level, we introduce the concept of "food system innovation settings" combining: (i) the type of innovative practice promoted at farm level; (ii) the type of value chain supporting that innovation; and (iii) the type of agriculture involved (organic or conventional). Through a multiple correspondence analysis, we show different patterns of barriers to crop diversification according to three ideal-types of food system innovation settings: (i) "Changing from within", where longer rotations are fostered on conventional farms involved in commodity supply chains; (ii) "Building outside", where crop diversification integrates intercropping on organic farms involved in local supply chains; and (iii) "Playing horizontal", where actors promote alternative crop diversification strategies-either strictly speaking horizontal at spatial level (e.g. strip cropping) or socially horizontal (arrangement between farmers)-without directly challenging the vertical organisation of dominant value chains. We recommend designing targeted research and policy actions according to the food systems they seek to develop. We then discuss further development of our approach to analyse barriers faced in intermediate and hybrid food system configurations.


Assuntos
Criação de Animais Domésticos/organização & administração , Produção Agrícola/organização & administração , Fazendas/organização & administração , Inovação Organizacional , Desenvolvimento Sustentável/tendências , Criação de Animais Domésticos/estatística & dados numéricos , Criação de Animais Domésticos/tendências , Produção Agrícola/métodos , Produção Agrícola/estatística & dados numéricos , Produção Agrícola/tendências , Produtos Agrícolas , Difusão de Inovações , Europa (Continente) , Fazendeiros/estatística & dados numéricos , Fazendas/estatística & dados numéricos , Fazendas/tendências , Humanos , Políticas , Análise Espaço-Temporal , Inquéritos e Questionários/estatística & dados numéricos
4.
PLoS One ; 15(3): e0229774, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32126129

RESUMO

As demands on agriculture increase, food producers will need to employ management strategies that not only increase yields but reduce environmental impacts. Modeling is a powerful tool for informing decision-making about current and future practices. We present a model to evaluate the effects of crop diversification on the robustness of simulated farms under labor shocks. We use an example inspired by the Florida production system of high-value, labor-intensive fruits. We find that crop diversification to high-value crops is a robust strategy when labor shocks are mild, and that crop diversification becomes less valuable as more simulated farms practice it. Based on our results, we suggest that crop diversification is a useful management strategy under specific conditions, but that policies designed to encourage crop diversification must consider broad effects as well as farm-level benefits.


Assuntos
Produção Agrícola/organização & administração , Técnicas de Apoio para a Decisão , Fazendas/organização & administração , Modelos Organizacionais , Conservação dos Recursos Naturais/economia , Conservação dos Recursos Naturais/métodos , Produção Agrícola/economia , Produção Agrícola/estatística & dados numéricos , Produtos Agrícolas/economia , Tomada de Decisões , Emprego/economia , Emprego/estatística & dados numéricos , Fazendas/economia , Fazendas/estatística & dados numéricos , Estudos de Viabilidade , Florida , Recursos Humanos/economia , Recursos Humanos/estatística & dados numéricos
5.
Planta ; 250(3): 989-1003, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31073657

RESUMO

MAIN CONCLUSION: The African Orphan Crops Consortium (AOCC) successfully initiated the ambitious genome sequencing project of 101 African orphan crops/trees with 6 genomes sequenced, 6 near completion, and 20 currently in progress. Addressing stunting, malnutrition, and hidden hunger through nutritious, economic, and resilient agri-food system is one of the major agricultural challenges of this century. As sub-Saharan Africa harbors a large portion of the severely malnourished population, the African Orphan Crops Consortium (AOCC) was established in 2011 with an aim to reduce stunting and malnutrition by providing nutritional security through improving locally adapted nutritious, but neglected, under-researched or orphan African food crops. Foods from these indigenous or naturalized crops and trees are rich in minerals, vitamins, and antioxidant, and are an integral part of the dietary portfolio and cultural, social, and economic milieu of African farmers. Through stakeholder consultations supported by the African Union, 101 African orphan and under-researched crop species were prioritized to mainstream into African agri-food systems. The AOCC, through a network of international-regional-public-private partnerships and collaborations, is generating genomic resources of three types, i.e., reference genome sequence, transcriptome sequence, and re-sequencing 100 accessions/species, using next-generation sequencing (NGS) technology. Furthermore, the University of California Davis African Plant Breeding Academy under the AOCC banner is training 150 lead African scientists to breed high yielding, nutritious, and climate-resilient (biotic and abiotic stress tolerant) crop varieties that meet African farmer and consumer needs. To date, one or more forms of sequence data have been produced for 60 crops. Reference genome sequences for six species have already been published, 6 are almost near completion, and 19 are in progress.


Assuntos
Produção Agrícola , Produtos Agrícolas/genética , Genoma de Planta/genética , África Subsaariana , Produção Agrícola/organização & administração , Produtos Agrícolas/crescimento & desenvolvimento , Agricultura Florestal , Genômica/métodos , Genômica/organização & administração , Sequenciamento de Nucleotídeos em Larga Escala/métodos , Árvores/genética , Árvores/crescimento & desenvolvimento
6.
J Sci Food Agric ; 98(1): 12-17, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28898466

RESUMO

The application of agricultural biotechnology attracts the interest of many stakeholders. Genetically modified (GM) crops, for example, have been rapidly increasing in production for the last 20 years. Despite their known benefits, GM crops also pose many concerns not only to human and animal health but also to the environment. Malaysia, in general, allows the use of GM technology applications but it has to come with precautionary and safety measures consistent with the international obligations and domestic legal frameworks. This paper provides an overview of GM crop technology from international and national context and explores the governance and issues surrounding this technology application in Malaysia. Basically, GM research activities in Malaysia are still at an early stage of research and development and most of the GM crops approved for release are limited for food, feed and processing purposes. Even though Malaysia has not planted any GM crops commercially, actions toward such a direction seem promising. Several issues concerning GM crops as discussed in this paper will become more complex as the number of GM crops and varieties commercialised globally increase and Malaysia starts to plant GM crops. © 2017 Society of Chemical Industry.


Assuntos
Produção Agrícola/legislação & jurisprudência , Produtos Agrícolas/genética , Alimentos Geneticamente Modificados/normas , Plantas Geneticamente Modificadas/genética , Qualidade de Produtos para o Consumidor , Produção Agrícola/organização & administração , Produção Agrícola/normas , Produtos Agrícolas/química , Produtos Agrícolas/metabolismo , Alimentos Geneticamente Modificados/economia , Humanos , Malásia , Plantas Geneticamente Modificadas/química
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