Resultados de búsqueda - EHESS~

PlantGENE report on panel discussion: advancing plant biotechnology in Africa por Malzahn, A.A., Songstad, N., Tripathi, L., Okwuonu, I., Sithole-Niang, I., Runo, S., Wagaba, H., Houassi, M., Kaeppler, H., Gordon-Kamm, W., Lee, K., Parrott, W., Taylor, N., Rogers, C., Gaffney, J., Van Eck, J., Veena, V.

“…The panelists emphasized the necessity of creating an environment that encourages African scientists to remain on the continent and address local challenges through innovative research. …”
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The impact of expanding eucalyptus plantations on the hydrology of a humid highland watershed in Ethiopia por Fenta, H. M., Steenhuis, T. S., Negatu, T. A., Zimale, F. A., Cornelis, W., Tilahun, Seifu A.

“…Since runoff is generated by saturation excess runoff, it takes longer for the valley bottoms to become saturated. …”
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Assessing the contribution of managed aquifer recharge programs on groundwater storage in the Ramganga Basin por Alam, Mohammad Faiz, Pavelic, Paul, Sharma, Navneet, Sikka, Alok

“…Beyond supply-side measures, this study highlights the need for integrated demand management strategies in the Ganges basin. It underscores the pressing need for a comprehensive, science-based approach to MAR implementation, coupled with demand-side interventions, to ensure sustainable groundwater management.…”
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Spraying high concentrations of chelated zinc enhances zinc biofortification in wheat grain por Xu, Meng, Liu, Mengjiao, Si, Linlin, Ma, Qingxu, Sun, Tao, Wang, Jun, Chen, Kaijun, Wang, Xiangjie, Wu, Lianghuan

“…BACKGROUND Foliar application of highly concentrated ZnSO4 fertilizer improves Zn biofortification in wheat grains. However, excess ZnSO4·7H2O concentration (≥5 g kg−1, w v−1) has been associated with leaf burn and yield loss, necessitating Zn sources with a high threshold concentration. …”
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Climate services bundles preferences of smallholder farmers in West Africa: a stated choice modelling por Ouedraogo, Adama, Ouedraogo, Mathieu, Egyir, Irene S., Läderach, Peter, Mensah-Bonsu, Akwasi, Jatoe, John Baptist D.

“…The study underscores the importance of designing comprehensive service packages that cater to farmers' specific and urgent needs. It highlights the necessity for partnerships among service providers to improve the delivery of these essential services. …”
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Impact of potassium management on soil dynamics and crop uptake in rice systems por Mohapatra, Suchismita, Rout, Kumbha Karna, Khanda, Chandramani, Mishra, Amit, Yadav, Sudhir, Padbhushan, Rajeev, Mishra, Ajay Kumar, Sharma, Sheetal

“…These findings highlight the necessity of integrating reserve and non-exchangeable K dynamics into nutrient management strategies to ensure sustainable rice production.…”
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Economy-wide implications of increasing school enrolment in Sub-Saharan Africa por Elnour, Zuhal, Siddig, Khalid, Grethe, Harald

“…The high number of out-of-school youth in developing countries constitutes a pressing challenge with profound implications for attaining sustainable development. …”
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From risk to resilience: A user-centered water monitoring and early warning system por Alemayehu, Sintayehu, Tegegne, Getachew, Dejene, Sintayehu Workeneh

“…To help these communities adapt, there’s a pressing need for a new approach to water monitoring. …”
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Resilient yet productive: maize that can thrive under stress and in optimal conditions por Das, Reshmi Rani, Vinayan, Madhumal Thayil, Seetharam, Kaliyamoorthy, Ahmad, Salahuddin, Thaitad, Suriphat, Nguyen, Thanh Chi, Patel, Manish B., Kumar, Ramesh, Devraj Lenka, Zaidi, Pervez H.

“…In the Asian tropics, maize is predominantly grown as a rainfed crop during the summer-rainy season, which often suffers significant yield losses due to the erratic distribution pattern of monsoon rain that causes intermittent dry spells and/or excessive moisture within the season. The climate-induced abiotic stresses, particularly drought and waterlogging, pose significant threats to rainfed maize cultivation in the Asian tropics, where erratic patterns of monsoon rain and associated high genotype-by-environment interaction (GEI) effects undermine yield stability. …”
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The landscape of youth engagement in labor markets in Africa: Are youth driving structural transformation? por Abay, Kibrom A., Wondale, Meseret, Korir, Josphat K., Bachewe, Fantu Nisrane, Araya, Mesele, Breisinger, Clemens

“…We situate the analysis within the region’s pressing youth unemployment challenge, where annual labor-force entrants surpass job creation. …”
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Characterizing the production of small-scale tree seed nurseries in Burkina Faso: Insights from a national survey por Oubida, Wendpouiré Régis, Daboue, Edith Marie Sylvie, Bama, Wend-Kuni Josée, Sougué, Bassirou Moïtché, Ouedraogo, Moussa, Vinceti, Barbara

“…Water scarcity, weak market linkages, and inadequate infrastructure emerged as the most pressing challenges. Most nurserymen had received training, though knowledge gaps persisted in seed handling and propagation management. …”
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Intake, digestibility, nitrogen balance and certain rumen characteristics of Ethiopian Menz sheep fed teff straw supplemented with cotton seed cake, dry sesbania, dry leucaena or f... por Bonsi, M.L.K., Osuji, P.O., Tuah, A.K., Umunna, N.N.

“…The lower DM and OM digestibilities of the supplemented diets were attributed to substrate preference by rumen cellulolytic bacteria. Excessively high levels of rumen NH3-N (328 mg/1) in the CSC diet resulted in high urinary nitrogen losses leading to low N balance. …”
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Inter-relationships between chemical constituents, rumen dry matter and nitrogen degradability in fresh leaves of multipurpose trees por Nsahlai, I.V., Siaw, D.E.K.A., Umunna, N.N.

“…Except for A saligna, synchronization indices of the release of nutrients for each accession ranged from perfect (0.93) to poor (-0.31) for soluble nutrients and from moderate (0.75) to very poor (-0.81) for insoluble slowly degradable nutrients because N was in excess. Inter-relationships among chemical constituents, DM and N degradation constants were established using correlation and regression analyses. …”
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The risk management dilemma for fumonisin mycotoxins por Shephard, G.S., Kimanya, M.E., Kpodo, K.A., Gnonlonfin, G.J.B., Gelderblom, W.C.A.

“…The outcome of these investigations has been of a nature to alert risk managers to the necessity of controlling human exposure. However, the fumonisins occur mostly in maize, a world staple crop which is consumed in various communities at levels which can be as many as 100-fold different. …”
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Atteindre la sécurité alimentaire dans le contexte du changement climatique : Résumé de la Commission sur l'agriculture durable et le changement climatique à l'attention des décide... por Beddington, J.R., Asaduzzaman, Mohammed, Fernández, A., Clark, Megan E., Guillou, Marion, Jahn, Molly M., Erda, Lin, Mamo, Tekalign, Bo N Van, Nobre, Carlos A., Scholes, Robert J., Sharma, Rita, Wakhungu, Judi W.

“…L'investissement, l'innovation et un effort délibéré visant à rendre autonomes les populations les plus vulnérables du monde seront nécessaires pour construire un système alimentaire mondial qui s'adapte au changement climatique et assure la sécurité alimentaire tout en minimisant les émissions de gaz à effet de serre et en conservant notre stock de ressources naturelles. …”
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Improving agricultural water productivity through integrated termite management por Peden, Donald G., Swaans, Cornelis P.M., Mpairwe, D.R., Geleta, N., Zziwa, Emmanuel, Mugerwa, S., Taye, H., Legesse, H.

“…One characteristic of land degradation is low organic matter (OM) reserves in vegetative biomass and soil. One consequence is excessive rainwater depletion through non-productive evaporation and runoff leading to low agricultural water productivity and diminished livelihoods. …”
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Managing salinity in the Indus Basin of Pakistan por Qureshi, Asad Sarwar, Sarwar, A.

“…To address the saline soil problem, some of the measures tested include leaching of salts by excess irrigation, use of chemicals (such as gypsum and acids), and addition of organic matter and biological measures (such as salt-tolerant plants, grasses, and shrubs). …”
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Managing salinity and waterlogging in the Indus Basin of Pakistan por Qureshi, Asad Sarwar, McCornick, Peter G., Qadir, Manzoor, Aslam, Z.

“…These include lowering groundwater levels through deep tubewells, leaching of salts by excess irrigation, application of chemical amendments (e.g. gypsum, acids, organic matter), and the use of biological and physical methods. …”
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Evidence for biological nitrification inhibition in Brachiaria pastures por Subbaraoa, Guntur V., Nakahara, K., Hurtado, M.P., Ono, H, Moreta Mejia, DE, Salcedo, A.F., Yoshihashi, AT, Ishikawa, T., Ishitani, Manabu, Ohnishi, M, Yoshida, M, Rondón, Marco Antonio, Rao, Idupulapati M., Lascano Aguilar, Carlos Eduardo, Berry, W.L., Ito, O.

“…Within 3 years of establishment, Brachiaria pastures have suppressed soil nitrifier populations (determined as amoA genes; ammonia-oxidizing bacteria and ammonia-oxidizing archaea), along with nitrification and nitrous oxide emissions. These findings provide direct evidence for the existence and active regulation of a nitrification inhibitor (or inhibitors) release from tropical pasture root systems. …”
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Livestock-environment interactions under intensifying production por Staal, Steven J., Ehui, Simeon K., Tanner, J.C.

“…The intensification of agricultural land use may degrade soils and alter natural habitats and biodiversity or, in some cases, may lead to excessive levels of inputs, with consequent effects on the environment. …”
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