Resultados de búsqueda - Trilce~

Adoption of dual purpose forages: Some policy implications por Lapar, Ma. Lucila, Ehui, Simeon K.

“…This paper uses an econometric approach (i.e. probit) to identify the factors affecting adoption of forages by smallholder farmers in the upland areas of the Philippines, using data from a survey conducted in 1996 by the International Rice Research Institute (IRRI). The survey examined farmers who had adopted contour hedgerow technology at 2 upland sites, Cebu, Visayas and Claveria, Mindanao, the Philippines.…”
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Phosphorus transformations in an oxisol under contrasting land-use systems: The role of the soil microbial biomass por Oberson, Astrid, Friesen, Dennis K., Rao, Idupulapati M., Buhler, S, Frossard, Emmanuel

“…Soil samples were taken from grass legume pasture (GL), continuous rice (CR) and native savanna (SAV) which served as reference. …”
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Enhancing market orientation of smallholders: lessons from market orientation of households in selected grains in Ethiopia por Gebremedhin, Berhanu, Hoekstra, Dirk

“…This paper attempts to contribute to redressing this gap of knowledge for the cereal crops of teff, wheat and rice; the pulse crops of haricot beans and chickpea and an oil crop (niger seed). …”
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Creating long-term weather data from thin air for crop simulation modeling por Wart, Justin van, Grassini, Patricio, Yang, Haishun, Claessens, Lieven, Jarvis, Andy, Cassman, Kenneth G.

“…The distributions of simulated yields of maize, rice, or wheat with propagated data were compared with simulated yields using observed weather data at 18 sites in North and South America, Europe, Africa, and Asia. …”
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Spatio-temporal distribution of actual evapotranspiration in the Indus basin irrigation system por Liaqat, U.W., Choi, M., Awan, Usman K.

“…In addition, analysis of the evaporation process showed that mixed-cropping and rice?wheat dominated areas had lower and higher water consumption rates, respectively, in comparison with other cropping systems in the basin. …”
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Intensification of smallholder livestock production through utilisation of crop residues for livestock feed in Tanzania por Lukuyu, Ben A., Sikumba, Gregory N., Kihara, Job Maguta, Bekunda, Mateete A.

“…The most dominant cereal crop residues are maize stover (57%) and rice straw (20%) while the most common legumes straws are pigeon pea (4%); bean (12%), groundnut (5%) and cowpea (2%) haulms. …”
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Enhancing biodiversity and production through participatory plant breeding: Setting breeding goals por Sthapit, B.R., Joshi, Krishna D., Rana, Ram B., Upadhaya, Madhusudan, Eyzaguirre, Pablo B., Jarvis, Devra I.

“…Within the project, "Strengthening the Scientific Basis of in situ Conservation of Agricultural Biodiversity," supported by the International Plant Genetic Resources Institute (IPGRI), case studies of rice were mode in Nepal on consolidating the roles of farmer participation in PPB .and seed exchange processes. …”
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Application of secondary nutrients and micronutrients increases crop yields in sub-Saharan Africa por Kihara, Job Maguta, Sileshi, Gudeta W., Nziguheba, Generose, Kinyua, Michael, Zingore, Shamie, Sommer, Rolf

“…Of the two sources, most yield data are for maize (73.6%), followed by sorghum (6.7%) and wheat (6.1%) while rice, cowpea, faba bean, tef, and soybean each accounted for less than 5%. …”
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Environmental impacts of dairy farming in Lembang, West Java por Vries, Marion de, Wouters, A.P., Vellinga, Theun V.

“…Hotspots of GHG emissions were rumen enteric fermentation (CH4), manure management (CH4 and N2O; especially discharged manure), and off-farm feed production (CH4, N2O and CO2; especially rice straw). Feeding and manure management interventions evaluated in a scenario analysis in this study changed total GHG emissions by -12 to +24%, and GHG emission intensity by -1 to -14%. …”
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Un modelo econométrico de ecuaciones simultáneas para estimar la respuesta del área de cultivos interdependientes por Rosales Alvarez, Ramón

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Turrialba; Vol. 34, no. 1

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Economic environmental & social incentives to recover hypersaline concentrate via the Dual-salt (Na2CO3&NH4Cl) process at desalination plants in Latin America and the Caribbean por Miller, William

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Alternative management regimes of Eucalyptus por Otuba, Moses

“…It was reviled that weeding at establishment, incorporation of rice and beans, N and P fertilization and slash residue management have the potential to increase the mean annual increment of eucalyptus species depending on site and climate conditions. …”
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Updating yield growth rates in the IMPACT model to enhance global analysis of the future of agriculture por Hareau, G., Rosegrant, Mark W., Andrade, Robert, Petsakos, Athanasios, Sulser, Timothy B., Chamberlin, Jordan, Sonder, Kai, Kihiu, Evelyne, Suarez, Victor, Cenacchi, Nicola, Dunston, Shahnila, Hartley, Faaiqa, Mishra, Abhijeet, Thomas, Timothy S., Alene, Arega D., Gbegbelegbe, Sika, Mjuma, Andrea, Enahoro, Dolapo K., Petnkeu, Jeronya Mbiatat, Antonio, Ronald Jeremy S., Cabrera, Ellanie, Basnet, Shyam, Gimutao, Maureen, Pede, Velerien, Chan, Chin Yee, Chung, Ka Yi Karen, Sari, Evren Can

“…Over time, this economic model has been expanded and improved, and IMPACT is now a system of linked models around a core multimarket economic model of global production, trade, demand, and prices for agricultural commodities. IMPACT supports integrated analysis of the implications of physical, biophysical, and socioeconomic trends and phenomena, allowing for varied and in-depth analysis on a variety of key issues of interest to policymakers. …”
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Riegos de gravedad a riegos de presión (goteo) en producciones hortícolas del valle bonaerense del río Colorado, Argentina por Bongiovanni Ferreyra, Marcos Gabriel, Anze, Rolando Nelson

“…La escasa acumulación de nieve en la cordillera argentina durante los últimos trece años provocó la disminución de los caudales del río Colorado. …”
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Halo-hydromorphism alters nitrogen fertilization responses of tall wheatgrass pastures: Capture and use of resources, tiller dynamics and forage production por Fina, Federico, Bertram, Nicolas, Gatti, María Laura, Di Bella, Carla Estefania, Grimoldi, Agustin Alberto, Berone, German Dario

“…N150 treatments production was twice as high as in N0 in low HHM and intermediate HHM environments (from 1750 to 3500 kgDM/ha and from 1080 to 1985 kgDM/ha, respectively). …”
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Immune response and protection provided by live tachyzoites and native antigens from the NC-6 Argentina strain of Neospora caninum in pregnant heifers por Hecker, Yanina Paola, Moore, Prando Dadin, Quattrocchi, Valeria, Regidor-Cerrillo, Javier, Verna, Andrea Elizabeth, Leunda, Maria Rosa, Morrell, Eleonora Lidia, Ortega-Mora, Luis M., Zamorano, Patricia Ines, Venturini, María Cecilia, Campero, Carlos Manuel

“…Sixteen pregnant heifers were divided in 4 groups of 4 animals, each receiving different inoculation before mating: group A animals were intravenously (iv) inoculated with 6.25 × 107 live tachyzoites of the NC-6 strain, group B heifers were inoculated twice subcutaneously (sc) with N. caninum native antigen extract formulated with ISCOMs, group C heifers were sc injected with sterile phosphate-buffered saline (PBS) and group D heifers received sc ISCOM-matrix (ISCOMs without antigen). …”
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Feedbase intervention in a cow-calf system in the flooding pampas of Argentina: 2. Estimation of the marginal value of additional feed por Berger, Horacio, Bilotto, Franco Maximiliano, Bell, Lindsay, Machado, Claudio

“…The marginal value of feed (MVF, the possible gross economic benefit of additional feed on offer during an annual cycle), was assessed under the expected variability of climate and prices in a cow-calf operation from the Flooding Pampas, Argentina. …”
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Determinación de síntomas por deficiencia inducida de nutrimentos en lulo (Solanum quitoense Lamb) por Cabezas Gutiérrez, Marco, Botia, T.C., Medina, L.M.

“…Se compararon qu¡nce tratamientos; un testigo absoluto eJ cual solo se regó con agua potable a partir de los tres meses después del transplante del material vegetal; un test¡go de comparación, donde las plantas crec¡eron con todos los nutr¡mentos considerados necesanos y trece tratam¡entos donde se e¡iminó uno de los sigu¡entes elementos: N, P, K, Ca. …”
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Småskalig livsmedelsförsörjning av mjölk por Pallars, Olle

“…During the last year's Swedish agriculture have had difficult times, with decreasing prices and at the same time increasing production costs, which has led to bad profitability and faith in the future. …”
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