Resultados de búsqueda - "marginalism"

Responding to land degradation in the highlands of Tigray, Northern Ethiopia por Kumasi, Tyhra Carolyn, Asenso-Okyere, Kwadwo

“…If unattended to, land degradation would reduce agricultural productivity and increase pressure on marginal environments in the Tigray highlands of Ethiopia, adversely affecting food security and livelihoods of smallholder farmers. …”
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Inductores de resistencia para el manejo integrado de Phytophthora infestans (Mont.) De Bary en el cultivo de papa (Solanum tuberosum L.) por Sanabria, K.M.A.

“…Biolet y fungicida sistémico/contacto, donde se concluyó que los tratamientos que resultaron efectivos para el control de rancha considerando un bajo impacto ambiental y una tasa de retorno marginal superior al 50% para variedades susceptibles fueron aplicaciones solo de PKplus o PKplus alternado con fungicida de contacto, para variedades moderadamente resistentes y resistentes fueron aplicaciones de PKplus alternado con un fungicida de contacto y solo de fungicida de contacto respectivamente. …”
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Producer Support Estimates (PSEs) for agriculture in developing countries: measurement issues and illustrations from India and China por Mullen, Kathleen, Sun, Dongsheng, Orden, David, Gulati, Ashok

“…The results for India suggest that ignoring factors such as internal transport costs, marketing margins and quality differences can result in inaccurate price support estimates and PSEs that may be of the wrong sign. …”
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Impacts of inventory credit, input supply shops, and fertilizer microdosing in the drylands of Niger por Pender, John L., Abdoulaye, Tahirou, Ndjeunga, Jupiter, Gerard, Bruno, Kato, Edward

“…Inorganic fertilizer has a positive impact on millet and millet–cowpea yields when applied using microdosing, with an estimated marginal value-cost ratio greater than 3 for those crops indicating significant profitability. …”
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How can African agriculture adapt to climate change: Global carbon markets: Are there opportunities for Sub-Saharan Africa? por Bryan, Elizabeth, Akpalu, Wisdom, Ringler, Claudia, Yesuf, Mahmud

“…However, countries in Sub-Saharan Africa are marginalized in global carbon markets. Sub-Saharan Africa’s share of the CDM market is nine times smaller than its global share of GHG emissions, including emissions from land use and land-use change. …”
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Market Access Maps Database (MAcMap-HS6) por International Trade Center, United Nations Conference on Trade and Development, World Trade Organization, Centre d'Etudes Prospectives et d'Informations Internationales, International Food Policy Research Institute

“…Its main contributions are: (i) an exhaustive coverage of preferential trade arrangements across the world; (ii) the calculation of the ad valorem equivalent (AVE) for specific duties, acknowledging the differentiated impact of such duties across exporters, depending on their export unit values; (iii) the incorporation of tariff-rate quotas both through the AVE of the resulting protection at the margin, and through the calculation of involved rents; (iv) an original aggregation methodology, using a weighting scheme based on reference groups of countries, and limiting the extent of the endogeneity bias inherent to the standard, import-weighted average protection.…”
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The Role of Biodiversity in the Dynamics and Management of Insect Pests of Tropical Irrigated Rice--A Review por Way, M.J., Heong, K.L.

“…The success of this approach depends in particular on further research on dynamics of natural enemy and pest communities in rice ecosystems, especially where climatic conditions and water supply are marginally stable. Much more needs to be known about the nature and utilization of rice plant compensation for damage, particularly by defoliators and stem borers. …”
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The impact of training intervention on levels of indicator bacteria and prevalence of selected pathogens in raw milk from smallholder women dairy farmers in Central Ethiopia por Beyene, A.M., Nigatu, S., Archila-Godinez, J.C., Amenu, Kebede, Kowalcyk, B., Degefaw, D., Mogess, B., Gelaw, B., Gizachew, M., Mengistu, A., Abdelhamid, A.G., Barkley, J., Yousef, A.

“…The estimated cumulative probability of being in the high category was marginally significantly higher (p = 0.0581) pre-training (76%) compared to post-training (64%). …”
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High-Density Lipoprotein Cholesterol Concentrations and Particle Size Are Modified by Dietary Zinc in Men por Shenvi, Swapna, Chen, Kevin, Kim, Elijah, Zyba, Sarah, King, Sarah, Shigenaga, Mark, Killilea, David, Holland, Tai, Sutherland, Barbara, Krauss, Ronald, King, Janet C.

“…Objective To measure biomarkers of lipid metabolism in response to a marginal zinc depletion, repletion, and supplementation in healthy male subjects. …”
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Quantifying opportunities for greenhouse gas emissions mitigation using big data from smallholder crop and livestock farmers across Bangladesh por Sapkota, Tek B., Khanam, Fahmida, Mathivanan, Gokul Prasad, Vetter, Sylvia, Hussain, Sk. Ghulam

“…Here, we present identified mitigation options, their mitigation potentials and cost or benefit of adoption in the form of Marginal Abatement Cost Curves (MACC). Based on our analysis, total GHG emissions from agricultural sector in Bangladesh for the year 2014–15 is 76.79 million tonne (Mt) carbon-dioxide equivalent (CO2e). …”
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The heterogeneous association between education and the adoption of safe food handling practices in Ethiopia por Su, K., Kowalcyk, B., LaPolt, D., Gazu, Lina, Alonso, Silvia, Azmeraye, B.M., Degefaw, D., Mamo, G., Angaw, D.A., Teshale, A.M., Scharff, R.

“…Agricultural household status and livestock presence were used as proxies to represent varying risk levels. Average marginal effects were estimated to provide a more accessible interpretation of the results. …”
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A framework for handling uncertainty in a large-scale programme estimating the Global Burden of Animal Diseases por Clough, H.E., Chaters, G.L., Havelaar, A.H., McIntyre, K.M., Marsh, T.L., Hughes, E.C., Jemberu, Wudu T., Stacey, D., Afonso, J.S., Gilbert, W., Raymond, K., Rushton, J.

“…Livestock provide nutritional and socio-economic security for marginalized populations in low and middle-income countries. …”
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Overcoming barriers to the adoption of water-saving technologies in Jordan: policy pathways for transforming knowledge, attitudes and practices por Al-Zu’bi, Maha, Amdar, Nafn, Brouziyne, Youssef

“…The sector relies on inefficient irrigation, leading to low water productivity, especially in the highlands, where productivity is only JOD 0.36 per m³, much lower than the potential achievable with Water Saving Technologies (WSTs).Several challenges hinder the adoption of WSTs, including financial constraints, limited extension services, technical gaps, and unequal access, particularly for smallholders and marginalized communities. The lack of pre- and post-installation support from WST suppliers and extension services limits the effectiveness of these technologies. …”
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Marek’s Disease Economic Impact and Trade-off (i-MaDE-IT) decision tool for layer poultry production por Aboah, Joshua, Enahoro, Dolapo K.

“…The management decisions module captures re-vaccination and biosecurity measures (specifically culling) as control measures, as well as the financial decisions that influence the profitability indicators – gross margin and benefit-cost ratio. The financial module consolidates all production costs and revenues from eggs, spent layers and manure. …”
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Policy and regulation in seed sector development for vegetatively propagated crops: Insights from Kenya, Nigeria, and Vietnam por Spielman, David J., Gatto, Marcel, Wossen, Tesfamicheal, McEwan, Margaret, Abdoulaye, Tahirou, Maredia, Mywish K., Hareau, Guy

“…The application (or marginalization) of these strategies is often shaped by fluid coalitions of actors with competing interests and framing narratives, and driven by organizational innovations, technological opportunities, trade relationships, and crises that are crop- and country-specific. …”
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Evaluation of improved cassava genotypes for fresh root yield and yield components in demand creation trial por Onyenali, T.C., Ogwuche, T.O., Onyeka, J., Diebiru-Ojo, E.M., Ikechukwu, I., Abah, S.P., Okwuonu, I.C., Ameh, E.A., Sanni, L., Kulakow, P., Egesi, C.

“…The traits were subjected to a GGE biplot in R software to identify high-yielding and stable genotypes. The estimated marginal means (EMM) for cassava yieldwere compared across different clones, environments, and years, revealing significant differences (p < 0.01). …”
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Evaluation of blast resistance in zinc-biofortified rice por Nunu, A., Mwangi, M., Bonuke, N., Njoroge, W., Thuranira, M., Gichuhi, E., Musila, R., Murori, Rosemary, Mutiga, Samuel K.

“…The Zn in the leaves was negatively correlated with foliar blast severity, and had a marginally positive correlation with panicle blast. …”
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Catalysing the Scale-Up of Integrated Small Ruminant Value Chains in Eastern and Southern Africa por Recha, John W.M., Demissie, Teferi, Haile, Aynalem, Mengistu, Tesfaye G, Makonnen, Brook T., Ambaw, Gebermedihin, Barungi, Julian, Magagula, Futhi, Taapopi, Mirjam, Gitau, Angela, Johnston, Angharad, Varley, Ciara, Mashizha, Tinashe M, Ndlovu, Noel, Murray, Una, McKeown, Peter C, Spillane, Charles, Solomon, Dawit

“…By improving local breeds of small ruminants and enhancing adaptive capacity, CBBPs strengthen climate resilience, bolster productivity, and contribute to marginalized populations' economic and nutritional well-being, particularly in rural areas. …”
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Measuring the impact of COVID-19 on climate smart agriculture strategies of smallholder farmers in coastal Bangladesh por Amjath Babu, Tharayil Shereef, Mamun-ur-Rashid, Sumona Shahrin, Krupnik, Timothy J.

“…The results argue for policies to improve how finance is provided, extension services are delivered, and cellular mobile access is ensured, especially for marginal and women farmers. Difficulties in accessing loans increased migration and larger sized loans pushed farmers to diversification. …”
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Agronomic levers to increase maize and soybean productivity across the Chinyanja Triangle, Southern Africa por Chiduwa, Mazvita, Nyagumbo, Isaiah, Omondi, John Okoth, Mkuhlani, Siyabusa, Masikati, Patricia, Malunga, Innocent, Mwila, Mulundu, Simwaka, Pacsu, Mapaure, Mateus, Banda, Andson, Hougni, Deo-Gratias Judrita Mawugnon, Ndour, Adama, Fantaye, Kindie Tesfaye, Snapp, Sieglinde, Silva, João Vasco

“…Maize cropping systems were similar across districts, whereas an intensification pathway was found for soybean cropping systems in Malawi, an extensification pathway in Zambia and marginal production pathway in Mozambique. Yield constraints for maize included low plant population and fertilizer management and variety type, while soybean yield constraints hinged around soil fertility, sowing date and variety type. …”
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