SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Ehmke, Mariah D.; Lusk, Jayson L.; Tyner, Wallace E..

Previous work in experimental economics reveals specific differences in economic behavior, especially reciprocity and free-riding behavior, across cultures. We expand the possible pallet of cross-cultural behavioral differences that may exist. We hypothesize that different kinds of strategic interaction and individual decision-making behaviors differ across locations. The variety of experiments we use allow us to report multidimensional rather than just single dimensional differences in behavior across locations. In order to build a broad Homo Economicus we conducted economic experiments in four dissimilar locations: Hangzhou, China; Niamey, Niger; Grenoble, France; Manhattan, Kansas; and West Lafayette, Indiana. Each subject completed an ultimatum...

Alert at Maradi: Preventing Food Crises in West Africa by Using Price Signals

Palavras-chave: Time preference; Risk preference; Voluntary contribution mechanism; Ultimatum bargaining game; Cultural; China; France; Niger; Kansas; Indiana; US; Institutional and Behavioral Economics.

Ano: 2005

URL: http://purl.umn.edu/19225

Araujo, Claudio; Araujo-Bonjean, Catherine; Brunelin, Stephanie.

The aim of this paper is to exploit grain price data to detect the warning signs of looming food crises in Mali, Burkina Faso and Niger. Firstly we identify which markets play a leading role at the national and regional level. The second step consists of identifying crisis periods and characterizing price movements during the period proceeding a crisis. This analysis leads to the identification of early warning indicators whose relevance is tested using panel data qualitative choice models. The results show that monitoring price movements on "leading markets" during crucial periods of the year can help in forecasting future crises.

Climatic variability and cooperation in rangeland management: a case study from Niger

Palavras-chave: Food security; Africa; Niger; Early warning systems; Discrete choice panel model; Food Security and Poverty; Q18; C25; D40; O18.

Ano: 2011

URL: http://purl.umn.edu/114226

McCarthy, Nancy; Vanderlinden, Jean-Paul.

In this paper, we develop an empirical model of an agro-pastoral system subject to high climatic risk to test the impact of rainfall variability on livestock densities, land allocation patterns and herd mobility observed at the community level. Also, because grazing land is a common-pool resource, we determine the impact of cooperation on these decision variables. To capture different abilities of communities to manage these externalities, we construct indices comprised of factors considered to affect the costliness of achieving successful cooperation found in the collective action literature. We then test hypotheses regarding the impact of rainfall variability and cooperation using data collected in a semi-arid region of Niger. Results indicate that...

Culturas de cobertura para a entressafra: importância e recomendações.

Palavras-chave: Rangelands; Environmental risk; Natural resource management; Pastoralism; Collective action; Cooperation; Institutions; Livestock stocking densities; Mobility; Niger; Land Economics/Use; Resource /Energy Economics and Policy.

Ano: 2002

URL: http://purl.umn.edu/50058

Repositório Alice

PEDREIRA, B. C. e; BEHLING NETO, A.; WRUCK, F. J.; OLIVEIRA JUNIOR, O. L. de; DOMICIANO, L. F..

A Região Centro-Oeste possui uma área de 160 milhões de hectares, correspondendo a 18,9% do território brasileiro (IBGE, 2010). No entanto, 119 milhões são estabelecimentos agropecuários em que ~43% são área destinada à preservação da vegetação nativa, segundo a estimativa apresentada pela (Embrapa, 2017) com base nos dados do Cadastro Ambiental Rural. É notório o grande potencial de produção agrícola da região Centro-Oeste, tornando-se o principal polo agropecuário do país. Isto ocorre em função da grande proporção da área encontrada no Bioma Cerrado, caracterizado por relevo suavemente ondulados, solos profundos e bem drenados, favorecendo a agricultura mecanizada (Pedreira et al., 2017). No entanto, estes solos apresentam baixa fertilidade natural e...

Tipo: Artigo de periódico

Palavras-chave: Capim marandu; BRS Piatã; BRS Paiaguás; Sorghum sudanensis; Feijão guandu; BRS Mandarim; Nabo forrageiro; Trigo mourisco; Centro-oeste; Planta de Cobertura; Entressafra; Gramínea; Gramínea Forrageira; Brachiaria Ruziziensis; Brachiaria Brizantha; Sorgo Forrageiro; Milheto; Pennisetum Glaucum; Crotalária; Leguminosa Forrageira; Cajanus Cajan; Raphanus Sativus; Fagopyrum Esculentum; Niger; Guizotia Abyssinica.

Ano: 2020

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129791

Culturas de cobertura para a entressafra: importância e recomendações.

Infoteca-e

PEDREIRA, B. C. e; BEHLING NETO, A.; WRUCK, F. J.; OLIVEIRA JUNIOR, O. L. de; DOMICIANO, L. F..

Tipo: Capítulo em livro técnico (INFOTECA-E)

Ano: 2020

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129791

Germinação, biometria de sementes e morfologia de plântulas de Guizotia abyssinica Cass

Rev. bras. sementes

Gordin,Carla Regina Baptista; Marques,Rodolpho Freire; Masetto,Tathiana Elisa; Scalon,Silvana de Paula Quintão.

O niger (Guizotia abyssinica Cass.) é uma herbácea anual com potencial para produção de biodiesel, porém com poucas informações referentes à qualidade de suas sementes. Com isso, objetivou-se determinar as temperaturas e substratos para a germinação e desenvolvimento inicial de plântulas, além de caracterizar morfologicamente as sementes e plântulas. Foram determinados o peso de mil sementes, grau de umidade, massa, comprimento, largura e espessura das sementes. No teste de germinação foram utilizadas quatro temperaturas constantes sob luz branca constante (15 °C, 20 °C, 25 °C e 30 °C) e uma temperatura alternada (20-30 °C) sob regime de 10 horas de escuro e 14 horas de luz branca para a temperatura mais elevada e dois substratos (entre papel e sobre...

Tipo: Info:eu-repo/semantics/article

Palavras-chave: Asteraceae; Embebição de sementes; Niger; Temperaturas.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000400013

Identification des besoins d’information des utilisateurs pour le développement des échanges dans la sous région OA. Rapport du SIMA/Niger

Reports (in French) on Stakeholders' Market Information Needs to Engage in Regional Trade. Niger

Impacts Of Inventory Credit, Input Supply Shops, and Fertilizer Microdosing in the Drylands of Niger

Palavras-chave: Market information; Niger; Agriculture; Food security; Trade; Agricultural and Food Policy; Food Security and Poverty; International Relations/Trade; Marketing; Q17.

Ano: 2008

URL: http://purl.umn.edu/57265

Pender, John L.; Abdoulaye, Tahirou; Ndjeunga, Jupiter; Gerard, Bruno; Kato, Edward.

This study investigated the impacts of access to inventory credit, input supply shops, fertilizer microdosing demonstrations, and other factors on farmers’ use of inorganic fertilizer and other inputs in Niger and on crop yields. We found that access to inventory credit and input supply shops has increased the use of inorganic fertilizer and seeds and that microdosing demonstrations have increased the use of inorganic fertilizer. Ownership of traction animals and access to off-farm employment have also contributed to the use of inorganic fertilizer, while larger farms use less fertilizer and labor per hectare. The impacts of these interventions and technologies depend on the crop mix. Inorganic fertilizer has a positive impact on millet and millet–cowpea...

Information and Firms’ Search Behavior

Palavras-chave: Fertilizer microdosing; Inventory credit; Warrantage (the French term for inventory credit); Input supply shops; Drylands; Niger; Sahel; Agribusiness; Crop Production/Industries.

Ano: 2008

URL: http://purl.umn.edu/42328

Aker, Jenny; Tack, Jesse B..

Information and communications technologies (ICTs) have spread rapidly over the past decade. There has been considerable interest in the effect of such technology on search costs, search behavior and welfare outcomes, particularly in developing countries. This paper investigates the impact of a new search technology, mobile phones, on traders’ search and marketing behavior in Niger. We construct a novel theoretical model of sequential search, in which traders engage in optimal search for the maximum sales price, net transport costs. The model predicts that the introduction of a new search technology, such as mobile telephones, will increase traders’ reservation sales prices and the number of markets over which they search. To test the predictions of the...

Integração lavoura-pecuária: consórcios forrageiros na entressafra.

Palavras-chave: Africa; Information; Information Technology; Search Costs; Niger; Agricultural and Food Policy; Food Security and Poverty; International Development; Marketing; O1; O3; Q13.

Ano: 2011

URL: http://purl.umn.edu/103404

Repositório Alice

WRUCK, F. J.; PEDREIRA, B. C. e; OLIVEIRA JUNIOR, O. L. de; BEHLING NETO, A.; DOMICIANO, L. F..

O sistema de plantio direto sobre a palha é uma tecnologia consolidada e considerada a segunda revolução verde (Pereira, 1997). Atualmente, as pesquisas e validações de campo vem buscando seu aprimoramento em função das condições ambientais e dos fatores de crescimento nas diversas regiões. Neste sentido, o sucesso deste sistema deve-se a palha deixada por culturas de cobertura sobre a superfície do solo, criando um ambiente favorável ao crescimento e desenvolvimento da cultura principal subsequente (Alvarenga et al., 2001). A modernização dos sistemas de produção tem levado a busca por culturas de cobertura que não se restrinja apenas à proteção do solo, mas que apresente outras funcionalidades (Jian et al., 2020). Assim, embora a escolha da planta de...

Tipo: Artigo de periódico

Palavras-chave: Integração lavoura-pecuária; Ilp; Consórcio; Sistema gravatai; Guandu-anão; Feijão caupi; BRS Paiguas; BRS Piatã; BRS Estilosantes Campo Grande; BRS Tamani; BRS Massai; IAPAR 43-Aratã; BRS Gurguéia; BRS Tumucumaque; BRS Mandarim; Nabo forrageiro; Trigo mourisco; Mato Grosso; Sinop-MT; Entressafra; Gramínea Forrageira; Leguminosa Forrageira; Planta de Cobertura; Plantio Direto; Pastagem Consorciada; Milheto; Milho; Girassol; Crotalária Juncea; Crotalária; Brachiaria Ruziziensis; Brachiaria Brizantha; Niger.

Ano: 2020

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129811

Integração lavoura-pecuária: consórcios forrageiros na entressafra.

Infoteca-e

WRUCK, F. J.; PEDREIRA, B. C. e; OLIVEIRA JUNIOR, O. L. de; BEHLING NETO, A.; DOMICIANO, L. F..

Tipo: Capítulo em livro técnico (INFOTECA-E)

Ano: 2020

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129811

Managing Resources in Erratic Environments: An Analysis of Pastoralist Systems in Ethiopia, Niger, and Burkina Faso

McCarthy, Nancy; Dutilly-Diane, Celine; Drabo, Boureima; Kamara, Abdul B.; Vanderlinden, Jean-Paul.

Although 22 percent of land in sub-Saharan Africa is arid or semiarid rangeland, development policies have long been biased toward crop agriculture. In the wake of the Green Revolution, international and national agricultural research institutions focused on crop systems and plant breeding. As a result, the customary tenure arrangements that enabled pastoralists to move their livestock from one grazing ground to another fell out of favor. As climate-related crises and desertification have spiraled, however, research and policy interest in rangeland management issues have been renewed. As part of its strategy to seek policies for the efficient functioning of global food systems, IFPRI has been in the forefront of this research. In the 1990s, as part of a...

Tipo: Report

Palavras-chave: Range management; Ethiopia; Niger; Burkina Faso; Pastoral systems; Resource /Energy Economics and Policy.

Ano: 2004

URL: http://purl.umn.edu/37895

Rebuilding Resilience in the Sahel: Regreening in the Maradi and Zinder Regions of Niger

Ecology and Society

Sendzimir, Jan; International Institute of Applied Systems Analysis (IIASA); sendzim@iiasa.ac.at; Reij, Chris P; Centre for International Cooperation, Vrij Universitaet; CP.Reij@dienst.vu.nl; Magnuszewski, Piotr; Center for Systems Solutions; piotr.magnuszewski@crs.org.pl.

The societies and ecosystems of the Nigerien Sahel appeared increasingly vulnerable to climatic and economic uncertainty in the late twentieth century. Severe episodes of drought and famine drove massive livestock losses and human migration and mortality. Soil erosion and tree loss reduced a woodland to a scrub steppe and fed a myth of the Sahara desert relentlessly advancing southward. Over the past two decades this myth has been shattered by the dramatic reforestation of more than 5 million hectares in the Maradi and Zinder Regions of Niger. No single actor, policy, or practice appears behind this successful regreening of the Sahel. Multiple actors, institutions and processes operated at different levels, times, and scales to initiate and sustain this...

Tipo: Peer-Reviewed Reports

Palavras-chave: Agro-forestry; Farmer managed natural regeneration; Maradi Region; Niger; Pastoralism; Reforestation; Regreening; Resilience; Vulnerability; West Africa; Zinder Region.

Ano: 2011

The Niger Food Crisis: Causes and Implications for Research and Development from an Integrated Agricultural Economics Perspective

Abele, Steffen; Twine, Edgar.

During the 2004 food crisis in Niger, the weakness of the main production system, millet, to produce enough food to sustain short term crises, has been revealed. Questions arise how the Nigerian smallholder systems can be assisted by research and development policies to intensify production and improve food security. The paper assesses technical options according to their economic sustainability. A sequence of models is applied: On plot level, production functions of inter cropping systems were estimated to determine yields and their variability of the major crops. These data were fed in a nonlinear program to test the inn ovations, first at stable prices, then at declining prices that were obtained from an interregional trade model. The latter was shocked...

The social nature of environmental knowledge among the nomadic Woɗaaɓe of Niger

Palavras-chave: Food security; Niger; Small scale farming; Risk management; Food Security and Poverty; Research and Development/Tech Change/Emerging Technologies; O13; Q01; Q12; Q16.

Ano: 2006

URL: http://purl.umn.edu/25557

Ecology and Society

Pastoral nomads such as West Africa’s Woɗaaɓe are renowned for the impressive environmental knowledge they apply to successfully raise animal herds in arid and variable environments. We looked at such herders’ knowledge not as based on individual learning and expertise but as ultimately social in the sense that it is formed, made available, and linked to pastoral decision making in the public and interactive space of permanent talking, discussing, and negotiating among peers. Drawing on theoretical ideas from science and technology studies, a number of concrete social situations of information management and pastoral decision making were explored in detail to reveal the distinctly social character of...

Tipo: Peer-Reviewed Reports

Palavras-chave: Fulani; Local environmental knowledge; Niger; Pastoral nomads; Science and technology studies; West Africa; Woɗ Aaɓ E.

Ano: 2014

Title Etude sur la transmission des fluctuations et le calcul des prix de parité du riz et du maïs au Niger

Addoh, Sani Laouali; Ousmane, Salifou Sanda.

Calculation of rice and maize parity prices in Niger.