Resultados de búsqueda - Akon~

Categorisation of dairy production systems: A strategy for targeting meaningful development of the systems in Uganda por Mubiru, S.L., Tenywa, J.S., Halberg, N., Romney, Dannie L., Nanyeenya, W., Baltenweck, Isabelle, Staal, Steven J.

“…The data was subjected to a cluster analysis which although produced 16 groups only five had prominent membership (above 5% of the farms). The five major clusters were selected as representative of the dairy production systems. …”
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Biological nitrogen fixation by common beans (Phaseolus vulgaris L.) increases with bio-char additions por Rondón, Marco Antonio, Lehmann, Johannes, Ramírez, Juan, Hurtado, M.P.

“…1 bio-char added to soil, respectively, NdfA decreased to 30% above the control with 90 g kg?1 due to low total biomass production and N uptake. …”
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Mapping evapotranspiration trends using MODIS and SEBAL model in a data scarce and heterogeneous landscape in eastern Africa por Kiptala, J.K., Mohamed, Y., Mul, Marloes L., Zaag, P. van der

“…In addition, ET estimates for the mountainous areas has been significantly suppressed at the higher elevations (above 2300 m a.s.l.), which is consistent with the decrease in potential evaporation. …”
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Aflatoxins in dairy cattle feed in Senegal por Marshall, Karen, Missohou, Ayao, Tebug, Stanly Fon, Kagera, I., Grace, Delia, Lindahl, Johanna F.

“…The percentage of feed samples that were above the World Health Organisation's recommended limit for aflatoxin in animal feed (of 5ppb) was high, for example 96% for ground-nut cake, 80% for millet bran, and 69% for concentrate. …”
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Economic and technical aspects of smallholder milk production in Northern Tanzania. por Zalla, T.M.

“…The economic analysis of returns to alternative milk production systems shows that upgrading zebu cattle yields returns to resources that are considerably above their opportunity cost and not far below the returns available from a pure grade dairy enterprise that requires much more sophisticated management and over twice the capital investment. …”
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GF120 effects on fruit fly species (Diptera Tephritidae) in Sahelian agroforestrybased horticultural cropping systems por Zakari-Moussa, O., Ratnadass, A., Vayssières, Jean-François, Nikiema, A., Fatondji, D., Salha, H., Aboubacar, K., Ryckewaert, P., Pasternak, D.

“…To complete preliminary results of earlier studies published elsewhere, we collected and incubated in 2010 ripe fruits of marula plum and watermelon in Sadoré, Niger, where the above-mentioned agroforestry systems are developed, and we recorded emerging fruit flies. …”
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Root growth of maize in a compacted gravelly tropical alfisol as affected by rotation with a woody perennial por Hulugalle, N.R., Lal, R.

“…Soil physical properties above the gravel layer were improved in the order of zero tillage > reduced tillage > conventional tillage. …”
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Effects of synthetic hormone substitutes and genotypes on rooting and mini tuber production of vines cuttings obtained from white yam (Dioscorea rotundata, Poir) por Agele, S.O., Ayankanmi, T.G., Kikuno, H.

“…The rice straw ash, IBAand neem leaves powder treated vines produced greater rooting percentage (above 70%) than percentrooting obtained from vines treated with other plant ashes. …”
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Lagriculture periurbaine a Yaounde: ses rapports avec le reduction de la pauvrete, le developpement economique, la conservation de la biodiversite et de lenvironnement por Dongmo, T., Gockowski, J., Hernández, S., Awono, L., Moudon, M.

“…Les systèmes de production utilisant les engrais organiques et des engrais chimiques ont été développés pour les légumes feuilles traditionnels et la laitue dans les bas-fonds pendant la saison sèche. L’abondance de la main-d’œuvre, la disponibilité de la terre en liaison avec la proximité des marchés pour les intrants et les produits agricoles ont contribué à ce processus d’intensification. …”
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Impacts of Land Use on Indian Mangrove Forest Carbon Stocks: Implications for Conservation and Management por Bhomia, R.K., Mackenzie, R.A., Murdiyarso, Daniel, Sasmito, S.D., Purbopuspito, J.

“…Mean vegetation C stocks (including both above‐ and belowground pools; mean ± standard error) in aquaculture, planted, scrub, and dense mangroves were 0, 7 ± 4, 65 ± 11 and 100 ± 11 Mg C/ha, respectively. …”
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Longterm soil organic carbon dynamics in a subhumid tropical climate: 13C data in mixed C3/C4 cropping and modeling with ROTHC por Diels, J., Vanlauwe, Bernard, Meersch, M.K. van der, Sanginga, N., Merckx, Roel

“…The addition of NPK fertilizer had little effect on the quantities of above-ground plant residues returned to the soil, and there was no evidence that the fertilizer affected the rate of SOC decomposition. …”
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Land Degradation Assessments Using Multiscale Hierarchical Approaches for Agroecosystem Restoration and Improved Food Security: The Case for Kenya and Burkina Faso por Kizito, Fred, Tamene, Lulseged D., Koech, Nicholas, Pondi, Brian, Ng'ang'a, Kennedy

“…Outputs from this analysis can be used by development agents, extension workers as well as local communities and farmers to facilitate targeted decision making. The above sequential steps clearly demonstrate the need for context-specific analysis that fit to local and regional conditions. …”
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A paradigm shift to CO2 sequestration to manage global warming – With the emphasis on developing countries por Bhattacharyya, Siddhartha Shankar, Leite, Fernanda Figueiredo Granja Dorilêo, Adeyemi, Maxwell Adebayo, Sarker, AhadJahin, Cambareri, Gustavo Sebastián, Faverin, Claudia, Tieri, Maria Paz, Castillo Zacarías, Carlos, Melchor Martínez, Elda, Parra Saldivar, Roberto, Iqbal, Hafiz M.

“…Moreover, to determine the true effect of these activities or regulations on CS, we must concurrently analyze SOC stock adjustments using models or direct measurements. Above all, SOC is the founding block of sustainable agriculture and inextricably linked with food security. …”
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Strategies to double milk production per farm in Argentina: Investment, economics and risk analysis por Baudracco, Javier, Lazzarini, Belén, Rossler, Noelia, Gastaldi, Laura Beatriz, Jauregui, José Martí­n, Fariña, Santiago

“…However, cumulative distribution functions of profit showed that they would have higher profit than BASE and grazing scenarios along most of the CDF curve.…”
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Does forest management affect the magnitude and direction of the afforestation effect on soil methane fluxes? A meta-analysis por Gatica, Gabriel, Fernandez, María Elena, Juliarena, Maria Paula, Gyenge, Javier

“…No change in CH4 fluxes was observed above this high stand density. Contrary to our expectations, no effect of taxonomic identity of the trees considering the most planted genera (Pinus and Eucalyptus) was observed in the average soil CH4 fluxes. …”
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Cobertura vegetal en lechuga: efecto sobre la producción y eficiencia de uso del agua y nitrógeno = Plant cover in lettuce: effect on production and efficiency of water and nitroge... por Huespe, Daiana Susana, Galantini, Juan Alberto, Alvarez, Cristian

“…Los tratamientos fueron calidad del agua de riego, con 1,0 y 2,0 dS m-1, con cobertura vegetal (CCV) y sin ella (SCV) a base de centeno cortado a 1 cm. …”
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Spatial and temporal patterns of herbaceous primary production in semi‐arid shrublands: a remote sensing approach por Blanco, Lisandro Javier, Paruelo, José María, Oesterheld, Martin, Biurrun, Fernando Noe

“…Questions: Can herbaceous above‐ground net primary production (ANPP) be estimated from remote sensing when woody and herbaceous plants are intermingled? …”
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Emisiones de óxido nitroso desde suelos agrícolas y alternativas para mitigarlas por Taboada, Miguel Angel, Cosentino, Vanina Rosa Noemi, Costantini, Alejandro Oscar

“…El óxido nitroso (N2O) es un gas efecto invernadero con un poder de calentamiento equivalente a 296 veces mayor que el del dióxido de carbono (CO2). …”
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A systems-level yield gap assessment of maize-soybean rotation under high- and low-management inputs in the Western US Corn Belt using APSIM por Balboa, Guillermo R., Archontoulis, Sotirios, Salvagiotti, Fernando, Garcia, Fernando O., Stewart, W.M., Francisco, Eros Artur Bohac, Vara Prasad, P.V., Ciampitti, Ignacio A.

“…Results indicated that APSIM simulated in-season crop above ground mass and nitrogen (N) dynamics as well yields with a modeling efficiency of 0.75 to 0.92 and a relative root mean square error of 18 to 31%. …”
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Bio-ecology and integrated management of the red palm weevil, Rhynchophorus ferrugineus (Coleoptera: Curculionidae), in the region of Valencia (Spain) por Dembilio, Óscar, Jaques, Josep A.

“…Based on the results obtained, less than one generation per year can be expected in areas with a mean annual temperature (MAT) below 15ºC and more than two in those with MAT above 19ºC. Oviposition in R. ferrugineus is also strongly affected by temperature. …”
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