Descubre y comparte nuestro conocimiento público

Se han encontrado 60 recursos

Resultados de búsqueda

Leclerc, G[La extrapolación de problemas y preferencias: A. Una extrategia para el muestreo usando datos auxiliares]La extrapolación de problemas y preferencias: A. Una extrategia para el muestreo usando datos auxiliares

Álvarez Villada, D.M.Estrada Iza, MCock, James H.[RASTA Rapid Soil and Terrain Assessment: Guía práctica para la caracterización del suelo y del terreno]RASTA Rapid Soil and Terrain Assessment: Guía práctica para la caracterización del suelo y del terreno

Cassava brown streak disease (CBSD) has been a problem in the East African coastal cassava growing areas for more than 70 years. The disease is caused by successful infection with Cassava Brown Streak Virus (CBSV) (Family, Potyviridae: Genus, Ipomovirus). Diagnosis of CBSD has for long been prima...


Rwegasira, G.M.Rey, M.E.C.Nawabu, H.[Approaches to diagnosis and detection of cassava brown streak virus (Potiviridae: Ipomovirus) in fieldgrown cassava crop]Approaches to diagnosis and detection of cassava brown streak virus (Potiviridae: Ipomovirus) in fieldgrown cassava crop

Seeds of Striga asiatica and S. hermonthica were separated from soil using a wet sieve method with a 2.5 smallcap˜M sucrose flotation solution and 250- and 150-µm mesh screens. In 34 fields, the av. and range of seeds/100 g of soil were 8.2 and 0-75, resp. Seeds were recovered from 28 of the 34 f...


Hartman, G.L.Tanimonure, O.A.[Seed populations of Striga species in Nigeria]Seed populations of Striga species in Nigeria

Sampling methodology in adoption-and-impact assessment studies of agricultural technology is unique and, in a certain way, complex. Firstly, assessment studies are conducted over time, and, in most cases, a lack of baseline studies hinders the analysis of the adoption process. A methodology that ...


Marín Arredondo, NHenry, GuyPerdomo, PP[Diseño muestral y análisis de encuestas para evaluar adopción de tecnología de producción de yuca en la Costa Atlántica de Colombia]Diseño muestral y análisis de encuestas para evaluar adopción de tecnología de producción de yuca en la Costa Atlántica de Colombia

Chronic kidney disease of unknown (“u”) cause (CKDu) is a growing public health concern in Sri Lanka. Prior research has hypothesized a link with drinking water quality, but rigorous studies are lacking. This study assesses the relationship between nephrotoxic elements (namely arsenic (As), cadmi...


Rango, T.Jeuland, M.Manthrithilake, HerathMcCornick, Peter G.[Nephrotoxic contaminants in drinking water and urine, and chronic kidney disease in rural Sri Lanka]Nephrotoxic contaminants in drinking water and urine, and chronic kidney disease in rural Sri Lanka

Castaño Gálvez, J[Estimación del tamaño de la muestra para el estudio de variedades "conjoint analysis"]Estimación del tamaño de la muestra para el estudio de variedades "conjoint analysis"

Hallman, GJ[Muestreo secuencial para evaluar viveros de frijol para resistencia al picudo Apion godmani en Centroamérica]Muestreo secuencial para evaluar viveros de frijol para resistencia al picudo Apion godmani en Centroamérica

Discusses a practical non-destructive sampling procedure of experimental Napier grass populations (Pennisetum purpureum) which is determined by the number of stools per row of planted Napier grass, the number of tillers per stool and the number, height and thickness of each tiller, the latter bei...


Leeuw, P.N. deMureithi, J.G.[Sampling procedures of experimental Napier grass populations]Sampling procedures of experimental Napier grass populations

Agricultural intensification to meet the food needs of the rapidly growing population in developing countries is negatively affecting the water quality. In most of these countries such as Ethiopia, information on surface and especially groundwater quality is lacking. This limits the measure that ...


Akal, Adugnaw T.Dagnew, D.C.Giri, S.Belete, M.A.Tilahun, Seifu A.Mekuria, Wolde M.Steenhuis, Tammo S.[Groundwater quality in an upland agricultural watershed in the sub-humid Ethiopian Highlands]Groundwater quality in an upland agricultural watershed in the sub-humid Ethiopian Highlands

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso