Resultados de búsqueda - "field experiment"

Gender bias in bargaining: Lessons from haggling over the price of seed in rural Uganda por Van Campenhout, Bjorn, Nabwire, Leocardia

“…Employing a lab-in-the-field experiment, we focused on unraveling the complexities of negotiations between sellers and buyers, and in particular on how the gender of the seller shapes the bargaining process and outcomes—finding that women face a distinct negotiating disadvantage.…”
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Women's empowerment and the intrinsic demand for agency: Experimental evidence from Nigeria por Bakhtiar, M. Mehrab, Fafchamps, Marcel, Goldstein, Markus, Leonard, Kenneth L., Papineni, Sreelakshmi

“…We conduct an original lab-in-the-field experiment on the decision-making process of married couples over the allocation of rival and non-rival household goods. …”
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Marketing fortified rice: Effects of aspirational messaging and association with free distribution por Chowdhury, Reajul, Crost, Benjamin, Hoffmann, Vivian

“…We test the individual and joint impacts of an aspirational marketing message and information about the public distribution of fortified rice through a framed field experiment eliciting willingness to pay for rice fortified with six micronutrients in Chandpur District, Bangladesh. …”
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Improving food safety on the farm: Experimental evidence from Kenya on incentives and subsidies for technology adoption por Hoffmann, Vivian, Jones, Kelly M.

“…Using a randomized field experiment, we test the impacts of subsidies and a price premium for safer produce on farmer adoption of technologies that improve food safety. …”
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Empowering women with digital extension in Uganda: Effects of information and role models por Lecoutere, Els, Spielman, David J., Van Campenhout, Bjorn

“…In many developing countries, agricultural extension services are generally biased towards men, with information targeted mainly to male members of a farming household and in formats that are rarely tailored to women. We conduct a field experiment among maize-farming households in eastern Uganda to test whether video-enabled extension messaging affects outcomes directly related to maize management and production. …”
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New fertilizer strategies combining manure and urea for improved rice growth in Mozambique por Ismael, Fátima, Ndayiragije, Alexis, Fangueiro, David

“…The present study aimed to assess the impact of combined fertilization strategies using urea and animal manure (beef cattle manure and poultry litter manure) on rice yield and nutrient uptake. For this, a field experiment was carried out on a loam sandy soil in the Chókwè Irrigation Scheme. …”
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Quantitative descriptions of rice plant architecture and their application por Li, Xumeng, Wang, Xiaohui, Peng, Yulin, Wei, Hailin, Zhu, Xinguang, Chang, Shuoqi, Li, Ming, Li, Tao, Huang, Huang

“…The influences of varieties and crop management on these indices and the influences of these indices on biomass accumulation were analyzed using field experiment data at two crop growth stages: early and late panicle initiation. …”
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Agronomic and economic evaluation of permanent raised beds, no tillage and straw mulching for an irrigated maize-wheat system in Northwest India por Ram, Hari, Singh, Yadvinder, Saini, K.S., Kler, D.S., Timsina, J., Humphreys, E.J.

Materias: “…field experimentation…”
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Is the reproductive potential of wild house mice regulated by extrinsic or intrinsic factors? por Jacob, J., Hinds, L.A., Singleton, G.R., Sutherland, D.R., Ylönen, H.

“…In a large‐scale, replicated field experiment we monitored the seasonal fluctuation in food availability and tested the effects of food addition on the reproductive performance of wild house mice (Mus domesticus) in south‐eastern Australia. …”
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Simulation of the Effect of Chilling Injury and Nitrogen Supply on Floret Fertility and Yield in Rice por Godwin, DC, Meyer, WS, Singh, U.

“…Inclusion of the chilling injury effect greatly improved the accuracy of estimated yields from treatments in an extensive field experiment. However, additional testing with a wider range of data sets is needed to confirm the international applicability of the modifications.…”
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Gas-Exchange Traits And Their Relationship To Water-Use Efficiency Of Grain-Sorghum por Peng, Shaobing, Krieg, Daniel R.

“…In the greenhouse study, individual entries were planted in plastic pots. The field experiment was conducted on an Amarillo loamy fine sand (fine‐loamy, mixed, thermic Aridic Paleustalf). …”
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To defer or to differ: Experimental evidence on the role of cash transfers in Nigerian couples’ decision–making por Bakhtiar, M. Mehrab, Fafchamps, Marcel, Goldstein, Markus, Leonard, Kenneth L., Papineni, Sreelakshmi

“…We conduct an original lab-in-the-field experiment on the decision-making process of married couples over the allocation of rival and non-rival household goods. …”
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Buyers' response to third-party quality certification: Theory and evidence from Ethiopian wheat traders por Abate, Gashaw T., Bernard, Tanguy, Bulte, Erwin, Miguel, Jérémy Do Nascimento, Sadoulet, Elisabeth

“…Next, using a novel lab-in-the-field experiment with Ethiopian wheat traders, we examine the model's predictions. …”
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Effects of bed width and planting date on water productivity of wheat grown on vertisols in the Ethiopian highlands por Erkossa, Teklu, Menker, M., Betrie, G.D.

“…A four-year (2000-2003) field experiment was conducted to evaluate three seedbed types, broad bed and furrows (BBF) with early planting, the traditional ridge and furrows (RF) and its modified version (wide ridge and furrows (WRF)), both under early and late planting, in terms of water productivity of wheat. …”
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Seed production of pasture species in a tropical savanna region of Brazil. 2. Grasses por Andrade, Ronaldo P. de, Thomas, D., Ferguson, John E.

“…The seed yields and limitations to seed production for four tropical grass cultivars were defined via a replicated field experiment conducted over three years at the Cerrados Agricultural Research Centre near Brasilia (latitude 15° 36' S; longitude 47° 42' W) in a tropical savanna region. …”
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Agricultural extension messages using video on portable devices increase knowledge about seed selection, storage and handling among smallholder potato farmers in southwestern Ugand... por Van Campenhout, Bjorn, Vandevelde, S., Walukano, W., Asten, Piet J.A. van

“…In this study, simple agricultural extension video messages, delivered through Android tablets, were tested in the field to determine if they increased farmers’ knowledge of recommended practices on (i) potato seed selection and (ii) seed storage and handling among a sample of potato farmers in southwestern Uganda. Using a field experiment with ex ante matching in a factorial design, it was established that showing agricultural extension videos significantly increased farmers’ knowledge. …”
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Efficacy of herbicide formulations for weed control in maize in a humid tropical environment por Fontem Lum, A., Chikoye, David

“…Weeds are a serious constraint to maize production in the tropics. A field experiment was conducted in Cameroon, at the University of Buea Research farm in 2009 and 2010 to evaluate the efficacy of formulations of nicosulfuron (Nicomaïs 40SC), glyphosate (Roundup 360) and paraquat (Gramoxone 200g a.i.…”
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Genetic variation for drought resistance in small red seeded common bean genotypes por Rezene, Y, Gebeyehu, S, Zelleke, H.

“…Common bean (Phaseolus vulgaris L.) productivity is low in major growing regions of Ethiopia mainly due to drought, caused by low and erratic rainfall. A field experiment was carried out at Gofa in Southern Ethiopia, to assess genetic variability for drought resistance in forty-nine small red seeded common bean genotypes of both local and foreign origin. …”
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Host plants and population dynamics of the cob borer Mussidia nigrivenella Ragonot (Lepidoptera: Pyralidae) in Benin por Sétamou, M., Schulthess, F., Poehling, H., Borgemeister, C.

“…This abundance of M. nigrivenella host plants, coupled with their overlapping fruiting periods may be the main reason for the high pest densities on maize, although only one maize crop per year is grown in the Northern Guinea savanna. In a field experiment, the highest infestation levels and densities of M. nigrivenella occurred on Canavalia enseiformis (L.) …”
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Comportamiento de 20 genotipos de frijol (Phaseolus vulgaris L.) a infecciones de la mustia hilachosa en el Estado de Tabasco, Mexico por Rocha Peña, M.A, Chan Sánchez, R.D.

“…A field experiment was carried out to evaluate the effect of the web bligh disease (Thanatephorus cucumeris = Rhizoctonia microesclerotia) on twenty lines of Phaseolus vulgaris in Tabasco, Mexico. …”
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