Resultados de búsqueda - "field experiment"

Gender, deliberation, and natural resource governance: Experimental evidence from Malawi por Clayton, Amanda, Dulani, Boniface, Kosec, Katrina, Robinson, Amanda Lea

“…We run a lab-in-the-field experiment that randomly varies the gender composition of six-member groups asked to privately vote, deliberate, then privately vote again on their preferred policy to combat local over-harvesting. …”
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Contract farming and smallholder incentives to produce high quality: Experimental evidence from the Vietnamese dairy sector por Saenger, Christoph, Qaim, Matin, Torero, Máximo, Viceisza, Angelino

Materias: “…field experimentation…”
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Do others’ health count for peanuts? Health, market returns, and pro-sociality por Abate, Gashaw T., Bernard, Tanguy, Deutschmann, Joshua, Fall, Fatou

“…We conduct a lab-in-the-field experiment with peanuts producers in Senegal to study the decision to invest in food safety information, exogenously varying the degree of private returns (monetary or health-wise) and welfare impacts on others. …”
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Effect of phosphorus application on the productivity and quality of three Stylosanthes cultivars por Mohamed-Saleem, M.A., Kaufmann, Ralph R. von

“…The role of P in limiting yields was investigated in a field experiment at Kurmin Biri, Kaduna State, Nigeria. …”
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Effects of conservation tillage on soil water content in northern arid regions of China. In Chinese por Jiantao, D., Wenqing, H., Nangia, Vinay, Changrong, Y., Ahmad, Mobin-ud-Din, Shuang, L., Qin, L.

“…Soil water content, water balance and water use efficiency were simulated and checked used the DSSAT model based on two-year field experiment. The results show that in dry year the soil water content of conservation tillage is higher than the conventional tillage, RMSE is 0.025-0.063. …”
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Tillage effects on physical qualities of a vertisol in the central highlands of Ethiopia por Erkossa, Teklu

“…The study was superimposed on the field experiment conducted on a vertisol area at Caffee doonsa for five years (1998 to 2002) in the central highland of Ethiopia. …”
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Comparative study of common bean (Phaseolus vulgaris L.) landraces conserved ex situ in genebanks and in situ by farmers por Gómez, O.J., Blair, Matthew W., Frankow-Lindberg, BE, Gullberg, U.

“…Further phenotypic and developmental traits were registered in a field experiment. Compared with the in situ populations, the ex situ ones had a lower level of gene diversity and we suggest that this is due to the regeneration process. …”
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Seed production of pasture species in a tropical savanna region of Brazil. 1. Legumes por Andrade, Ronaldo P. de, Thomas, D., Ferguson, John E.

“…The seed yields and limitations to yield for nine pasture legumes in a tropical savanna region were defined in a 3-year field experiment at the Cerrodos Agricultural Research Centre near Brasilia (15°36' S, 47° 42' W). …”
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Evaluación de la eficiencia agronómica de cuatro formas de urea en el cultivo del arroz por Arregocés, Oscar

“…Nitrogen is the nutrient with greatest influence on yield and cost production of rice; it is then necesary to look for its most efficient use. Three field experiment were carried out to determine the agornomic efficiency of four urea forms (prilled, forestry grade, supergranules and sulfur-coated) at different rates and plant growth stages of CICA 8 variety. …”
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Warming and nitrogen affect size structuring and density dependence in a host parasitoid food web por Sassi, Claudio de, Staniczenko, P.P.A, Tylianakis, Jason M.

“…We use a Bayesian modelling approach to explore the role of consumer and resource density and body size on host–parasitoid food webs assembled from a field experiment with factorial warming and nitrogen treatments. …”
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The effects of an entomopathogenic fungus, Beauveria bassiana (Balsamo) Vuillemin (Hyphomycetes), on Prostephanus truncatus (Horn) (Col: Bostrichdae), Sitophilus zeamais (Col: Curc... por Meikle, W.G., Cherry, A.J., Holst, N., Hounna, B., Markham, R.H.

“…A fungal entomopathogen, Beauveria bassiana, was used to treat maize ears placed in traditional grain stores against Prostephanus truncatus in a field experiment conducted from September 1997 to March 1998 in the Benin Republic, West Africa. …”
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Efficacy of Neoseiulus californicus and Phytoseiulus persimilis in suppression of Tetranychus urticae in young clementine plants por Abad-Moyano, Raquel, Pina, Tatiana, Pérez-Panadés, J., Carbonell, Emilio A., Urbaneja, Alberto

“…In order to assess the efficacy of inoculative releases of N. californicus and P. persimilis to reduce T. urticae populations in young Spanish clementine plants, a semi-field experiment was conducted and repeated in three seasons (spring, summer and autumn). …”
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Yield components and grape composition responses to seasonal water deficits in Tempranillo grapevines por Intrigliolo, Diego S., Pérez, Diego, Risco, David, Yeves, Antonio, Castel, Juan R.

“…A field experiment was carried out over three seasons on Vitis vinifera cv. …”
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Influence of mouldboard ploughing and shallow tillage on soil physical properties and crop performance por Parvin, Nargish

“…This study was conducted in spring 2011 in a long-term field experiment with the objective of assessing the effect of shallow tillage and mouldboard ploughing on some soil physical properties and crop performance. …”

Genetic diversity of Ethiopian cowpea [Vigna unguiculata (L) Walp] genotypes using multivariate analyses por Walle, T., Mekbib, Firew, Amsalu, B., Gedil, Melaku A

“…Therefore, the objectives of the study were to assess the extent and pattern of morphological diversity among cowpea genotypes and to identify the traits contributing to the genetic diversity using multivariate analyses. The field experiment was conducted using 324 genotypes at Melkassa Agricultural Research Center and Miesso sub-center during the2016 cropping season. …”
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Secondary Metabolites in Maca as Affected by Hypocotyl Color, Cultivation History, and Site por Clément, C., Diaz, D., Manrique, I., Avula, B., Khan, I.A., Ponce Aguirre, D.D., Kunz, C., Mayer, A.C., Kreuzer, M.

“…This study tested the hypothesis that, apart from color types, environmental factors have a distinct influence on the concentration of characteristic secondary metabolites in maca. In a field experiment at 4100 m altitude (Peru), maca of four hypocotyl color types was evaluated at two sites with different soil types. …”
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Elemental composition of the rice plant as affected by iron toxicity under field conditions por Sahrawat, K.L.

“…Little attention has been given to determining the macro‐ and micronutrient composition of rice plants grown on wetland soils where Fe toxicity is present although results from such study could provide useful information about the involvement of other nutrients in the occurrence of Fe toxicity. A field experiment was conducted in the 1997 dry season (January‐May) at an Fe toxic site in Korhogo, Ivory Coast, to determine the elemental composition of Fe tolerant (CK 4) and susceptible (Bouake 189) lowland rice varieties without and with application of nitrogen (N), phosphorus (P), potassium (K), and zinc (Zn). …”
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Potential of rice (Oryza sativa L.) cultivars to mitigate methane emissions from irrigated systems in Latin America and the Caribbean por Soremi, Paul Abayomi Sobowale, Chirinda, Ngonidzashe, Graterol Matute, Eduardo Jose, Álvarez, María Fernanda

“…Previous research has been contradictory, and varietal differences in rice CH4 emissions in Latin America have not been examined. A field experiment in Colombia tested whether irrigated rice emissions might be reduced using a breeding line, an inbred variety, and two rice hybrids. …”
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Breeding cowpea for adaptation to intercropping for sustainable intensification in the Guinea Savannas of Nigeria por Omoigui, L., Kamara, A., Shaibu, A.S., Aliyu, K.T., Tofa, A., Solomon, R., Olasan, O.J.

“…Firstly, an on-station field experiment was conducted in 2018. The selected promising lines and a standard check were evaluated in three locations in an intercropping system and on-farm trials. …”
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A gender and social inclusion lens on resilience in the context of climate change, COVID and other shocks and stresses por Kosec, Katrina, Clayton, Amanda, Dulani, Boniface, Robinson, Amanda

“…We run a lab-in-the-field experiment that randomly varies the gender composition of six-member groups asked to deliberate and then vote on solutions to combat deforestation. …”
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