Resultados de búsqueda - EHESS~

Agriculture, natural resource management, and “development” beyond the biophysical por German, L., Verma, R., Ramisch, Joshua J.

“…The volume’s case studies, introduced in this chapter, demonstrate the possibility and necessity of reaching out beyond the borders of anthropological and social scientific disciplines in ways that are meaningful and valuable to others. …”
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Plant nutrient supply from nine agroforestry tree species to wheat (Triticum aestivum) analysed by vector diagnosis por Anthofer, J., Hanson, Jean, Jutzi, S.C.

“…In contrast, wheat seedlings treated with A. polyacantha and Entada abyssinica had at least some vectors in the toxic zone due to an excess of nutrients while Grevillea treated plants showed a typical toxicity response with large vectors for all nutrients in between the toxic and the antagonistic zone. …”
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The Effects of Replacing Dicalcium Phosphate with Busumbu Rock Phosphate on Performance and the Mechanical Properties of Bone in Growing Chicks por Odongo, N.E., Plazier, J., Straaten, P. van, McBride, B.

“…These results suggest that excessive ingestion of fluorine from the BRP caused the reduction in the chicks' performance.…”
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Transforming the global landscape por Bossio, Deborah A.

“…From her perspective a lack of investments is not the problem. The more pressing question is whether these large scale investments could be sustainable and socially inclusive. …”
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Interacción entre genotipos de frijol y aislamiento de Rhizoctonia solani Kuhn, heredabilidad de la resistencia a la mustia hilachosa Thanatephorus cucumeris (Frank) (Donk) en cult... por Rodríguez, E., García, A., Frias, G, Beebe, Stephen E.

“…The heritabiJity shown by crossing was high which indieates that there is genic completion between the meso-ameriean and the Andean pools, respectively. The erossing of of AFR-251 x BAT-1155, in a direct and reciprocal way, showed differences in the F1 and the F2, indicating that the resistance to the disease is controlled by cytoplasmie genes as by nuclear genes. …”
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Líneas base, dosis diagnóstico y medición periódica de resistencia a imidacloprid, spinosad y carbosulfan en poblaciones de adultos de Thrips palmi (Thysanoptera: Thripidae en el V... por Rodríguez Torres, Isaura Viviana, Durán Sanchez, I.C., Morales, H, Cardona Mejía, César

“…The response of farmers to this problem has been the excessive pesticide use. With the aim of monitoring changes on the susceptibility of thrips populations to certain insecticides that are still effective, the line base data, LC50and LC90 values and diagnostic doses for imidacloprid, spinosad and carbosulfan were established. …”
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Líneas base, dosis diagnóstico y medición periódica de resistencia a insecticidas en poblaciones de adultos e inmaduros de Trialeurodes vaporariorum (homoptera: aleyrodidae) en el... por Rodríguez Torres, Isaura Viviana, Morales, H, Cardona Mejía, César

“…The above mentioned diagnostic doses were used to monitor resistance to insecticides in adults and nymphs of T. vaporariorum variety in areas of the Cauca Valley, where excessive use of insecticides occurs. Adult populations showed high levels of resistance to organophosphates, intermediate resistance to pyrethroids, and susceptibility to carbamates and imidacloprid. …”
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Biological nitrification inhibition (BNI) in Brachiaria pastures: a novel strategy to improve eco-efficiency of crop-livestock systems and to mitigate climate change por Moreta, Danilo, Arango, Jacobo, Sotelo Cabrera, Mauricio Efren, Vergara, Daniel, Rincón, Álvaro, Ishitani, Manabu, Castro, Aracely, Miles, John W., Peters, Michael, Tohme, Joseph M., Subbaraoa, Guntur V., Rao, Idupulapati M.

“…Nitrification and denitrification are the only known biological pro-cesses that generate nitrous oxide (N2O), a powerful greenhouse gas contributing to global warming. …”
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BMP implementations in Himalayan context: can a locally-calibrated SWAT assessment direct efforts? por Ali, S.S., Mehmood, H., Chemin, Yann H.

“…Delimitation of high runoff zones, fostering soil erosion in the agricultural dominated watersheds is thus a necessity for watershed managers, NGO’s, urban planners, policy makers, and municipal administrations. …”
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Traditional sheep and Goat production in southern Cote d'Ivoire por Armbruster, T., Peters, Kurt J.

“…The better performance of free-roaming flocks underlines the importance of sufficiently long daily grazing and browsing, while poor growth of lambs and kids born during rainy season indicated the necessity of improving flock health. Lamb and kid mortality up to 365 d of age was 48.1% in sheep and 44.2% in goats; average mortality in adults (>365 d old) was 20.9% and 23.3%, respectively. …”
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Frijol: fisiologia del potencial de rendimiento y tolerancia al estres por White, Jeffrey W., Izquierdo, J.

“…The problems of earliness and seed size, and several nonconventional strategies are discussed; abiotic stresses that affect yield potential, such as drought and excess water, and rusticity in beans are also analyzed. …”
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Dry bean: physiology of yield potential and stress tolerance por White, Jeffrey W., Izquierdo, J.

“…The problems of earliness and seed size, and several nonconventional strategies are discussed; abiotic stresses that affect yield potential, such as drought and excess water, and rusticity in beans are also analyzed. …”
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African indigenous cattle: Unique genetic resources in a rapidly changing world por Okeyo Mwai, Ally, Hanotte, Olivier H., Young-Jun Kwon, Seoae Cho

“…This paper reviews the unique known characteristics of indigenous African cattle populations while describing the opportunities, the necessity and urgency to understand and utilize these resources to respond to the needs of the people of the continent and to the benefit of African farmers.…”
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Total value of phosphorus recovery por Mayer, B.K., Baker, L.A., Boyer, T.H., Drechsel, Pay, Gifford, M., Hanjra, Munir A.

“…Phosphorus (P) is a critical, geographically concentrated, nonrenewable resource necessary to support global food production. In excess (e.g., due to runoff or wastewater discharges), P is also a primary cause of eutrophication. …”
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Plant functional traits and canopy structure control the relationship between photosynthetic CO2 uptake and far-red sun-induced fluorescence in a Mediterranean grassland under diff... por Migliavacca, M., Pérez Priego, O., Rossini, Micol, El-Madany, T.S., Moreno, G., Tol, Christiaan van der, Rascher, U., Berninger, A., Bessenbacher, V., Burkart, A., Carrara, A., Fava, Francesco P., Jin-Hong Guan, Hammer, T.W., Henkel, K., Juarez-Alcalde, E., Julitta, T., Kolle, O., Martín, M.P., Musavi, T., Pacheco-Labrador, J., Pérez Burgueño, A., Wutzler, Thomas, Zaehle, Sönke, Reichstein, Markus

“…We analyzed the structural and functional factors controlling the emission of SIF at 760 nm (F760) in a Mediterranean grassland manipulated with nutrient addition of nitrogen (N), phosphorous (P) or nitrogen–phosphorous (NP). …”
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Exploring the concept of agroecological food systems in a city-region context por Vaarst, Mette, Escudero, Arthur Getz, Chappell, M. Jahi, Brinkley, Catherine, Nijbroek, Ravic P., Arraes, Nilson A.M., Andreasen, Lise, Gattinger, Andreas, Fonseca De Almeida, Gustavo, Bossio, Deborah A., Halbergh, Niels

“…Application of agroecological food systems in rural–urban contexts emphasize the necessity of diversification, zoning rural–urban landscapes, planning for seasonality in a food systems context, and producing at scale. …”
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Distilling the role of ecosystem services in the Sustainable Development Goals por Wood, S.L.R., Jones, S.K., Johnson, J.A., Brauman, Kate A., Chaplin-Kramer, Rebecca, Fremier, Alexander K., Girvetz, Evan Hartunian, Gordon, L.J., Kappel, K.V., Mandle, L., Mulligan, M., O'Farrell, P., Smith, W.K., Willemen, L., Zhang, Wei, DeClerck, Fabrice A.J.

“…Achieving well-being for all, while protecting the environment, is one of the most pressing global challenges of our time, and a central idea in the UN Sustainable Development Goals (SDGs). …”
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Detection and identification of begomoviruses from landraces of okra (Abelmoschus esculentus) in Cameroon por Leke, W.N., Ramsell, J.N., Titanji, V.P.K., Legg, James P., Brown, J., Ngeve, J., Njualem, D., Fondong, V.N., Kvarnheden, A.

“…Leaves presenting symptoms of virus attack were collected from okra plants in the south-western rain forest region of Cameroon and pressed onto FTA® Classic Cards. Using PCR and universal begomovirus primers, all 10 symptomatic samples were positive. …”
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Impact of irrigation technology use on crop yield, crop income and household food security in Nigeria: a treatment effect approach por Ogunniyi, A., Omonona, B., Abioye, O., Olagunju, K.

“…However, despite the positive impact of irrigation technology use, we contend that other sustainable irrigation sources, such as rainwater harvesting should be used due to possible environmental impact in the excessive use of irrigation technology. Moreover, rained agriculture can be improved with other farming techniques such as agroforestry and soil and water conservation practices.…”
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Conversion of traditional cropland into teak plantations strongly increased soil erosion in montane catchments of Southeastern Asia [Abstract only] por Evrard, O., Ribolzi, Olivier, Huon, S., Rouw, Anneke de, Silvera, N., Latsachack, K.O., Soulileuth, B., Lefevre, I., Lacombe, Guillaume, Sengtaheuanghoung, Oloth, Valentin, Christian

“…Soil erosion delivers an excessive quantity of sediment to rivers of Southeastern Asia. …”
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