Resultados de búsqueda - "altitud"

Assessing the biophysical factors affecting irrigation performance in rice cultivation using remote sensing derived information por Sawadogo, A., Dossou-Yovo, Elliott Ronald, Kouadio, L., Zwart, Sander J., Traoré, F., Gundogdu, K. S.

“…Our results indicate that improving irrigated rice performance in the Kou Valley irrigation scheme would require growing more rice at lower altitudes (e.g. < 300 m above sea level) and closer to the scheme inlet, in conjunction with a good management of nutrients such as nitrogen and potassium through fertilization.…”
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Transition Pathway Toward Agroecology in Agroforestry Systems: Case of Kesra por Shiri, Zahra, Alary, Veronique, Ouerghemmi, Hassen, Dhraief, Mohamed Zied, Oueslati-Zlaoui, Meriem, Majri, Rihab, Rudiger, Udo, Frija, Aymen, Idoudi, Zied, Souissi, Asma, Dhehibi, Boubaker, Mannai, Amal, Rekik, Mourad, Rejeb, Hichem

“…The mountain of Kesra is located at an altitude of 1245 m with a very uneven relief. It belongs to the upper semi-arid bioclimatic stage. …”
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On-farm storage loss estimates of maize in Kenya using community survey methods por De Groote, Hugo, Muteti, Francisca Ndinda, Bruce, Anani Y.

“…The greatest losses occur in the humid areas, especially the moist mid-altitudes (56%), and with smaller loss in the drylands (20–23%). …”
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Identifying opportunities for sustainable intensification of mixed farming systems in the Mid-Hills of Nepal by optimal use of water in agriculture por Veenings, Lois, Cossu, Alessandra, Shrestha, Nirman, Adhikari, Tikaram, López Ridaura, Santiago, Groot, Jeroen C.J.

“…In the mid-hill region of West Nepal, the significant variation in altitude is the most pronounced in the country. This variation poses a major challenge for agriculture, with water availability and management emerging as a key concern. …”
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Evolution of agricultural mechanization in Kenya por De Groote, Hugo, Marangu, Cliff, Gitonga, Zachary M.

“…Tractors were most important in the highlands, whereas animal traction was most important in the dry areas and moist mid-altitude zone. Adoption of tractors increased with income, acreage, and age. …”
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The feed value of indigenous multipurpose trees for sheep: The case of Vernonia amygdalina (Girawa) Buddleja polystachya (Chocho) and Maesa lanceolata (Kelewa) por Haile, Aynalem, Tolemariam, T.

“…The feed resources base, the feeding systems and feed values of three indigenous trees Girawa, Anfare and Kelewa (Local (Amharic), Ethiopian names ) were studied for sheep in sub humid, mid altitude area of south western Ethiopia. The study involved a survey of the feed resources base and assessment of the feeding systems, chemical analysis and in vitro dry matter digestibility. …”
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Unlocking farmer-preferred multipurpose forage mixtures: A tricot approach in Ethiopia por Mulatu, Kalkidan, De Sousa, Kaue, Ebrahim, Mohammed, Notenbaert, An, Abera, Wuletawu, Mwendia, Solomon, Girma, Eyuel, Jørgensen, Marit

“…Across two regions with contrasting mid-altitude environments (Amhara and Sidama), we engaged 600 farmers in two cycles. …”
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Physiological basis for yield differences in maize (Zea mays L.) under varying nitrogen rates and planting windows in the savannas of Nigeria por Ahmad, N.M.

“…Field experiments were conducted at Bayero University, Kano (11058`38.63892N, 80 25`7.01868E), altitude 451m above sea level in the Sudan savanna and Zaria (11.16050610N, 7.64535890E) in Northern Guinea Savanna. …”
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Characterization of village chicken and egg marketing systems of Bure district, North-West Ethiopia por Moges, F., Dessie, Tadelle

“…Seven farmer kebeles (2 from high land, 3 from mid altitude and 2 from low land agro ecologies) and a total of 280 village chicken owner households were selected and considered for the study. …”
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Effects of strategic flukicidal (triclabendazole) treatment in naturally fasciola infected sheep: A case study in Wolemera District, Ethiopia por Asrat, M., Petros, B., Jobre, Y., Peden, Donald G., Shiferaw, Y., Taddesse, G., Mamo, M.

“…Future studies to assess the long-term effects of strategic anthelmentic treatments intervention in the highlands and replication of similar trials in mid-altitude and lowland sites, where the level of fasciolosis occurrence differ, are recommended.…”
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The Mahibere-Silassie composite: A new cattle breed type in north-western Ethiopia por Wuletaw, Z., Ayalew, W., Sölkner, Johann, Hegde, B.P.

“…On the other hand, the Raya and Afar Sanga cattle types found in lower altitude areas have longer legs, ears and horns reaching to maximum measurements for the Afar cattle…”
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Crossbreeding and intensification of smallholder crop-cattle farming systems in Bhutan por Samdupa, T., Udo, H.M.J., Eilers, C.H.A.M., Ibrahim, Mohamed N.M., Zijpp, A.J. van der

“…Since 1985, breeding policies have promoted the Brown Swiss crossbred for high altitude areas and the Jersey crossbred for other areas with suitable agro-ecological conditions. …”
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Spatial soil loss risk and reservoir siltation in semi-arid Tunisia por Jebari, S., Berndtsson, R., Bahri, Akissa, Boufaroua, M.

“…At present this front is located at 300 m altitude and appears to be moving along an 80-km westward path starting from the east coast. …”
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Adaptation to climate in common bean (Phaseolus vulgaris L.): Photothermal flowering responses in the Eastern, Southern and Great Lakes regions of Africa por Qi, A., Smithson, James Brady, Summerfield, R.J.

“…The trials were located at latitudes between 0.6 and 29.3° and at altitudes from 780 to 2200 m asl. In those 13 trials where daily records of maximum and minimum temperature were available, mean pre-flowering temperatures for individual genotypes ranged from 17.9 to 24.6 °C and mean pre-flowering photoperiods varied from 12.7 to 14.7 h d?…”
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Analysing climate impacts on insect pests using Phenology Modelling and GIS implemented in the ILCYM Software. por Kroschel, Jürgen, Tonnang, Henri E.Z., Juarez, H., Le Ru, B., Hanna, R.

“…Higher spatial (pixel size of 90 m) and temporal resolution (daily data) analysis for capturing insect potential distribution and abundance on small regional scales and variable altitude gradient can also be conducted. In a collaborative effort between CG-Centers (CIP, IITA) and its partners (icipe) the effects of temperature change are assessed on a wide range of insect pests (e.g., cassava mealybug, maize stem borers, potato tuber moths) of important food crops. …”
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Development of interspecific hybrids between three American yam bean species (Pachyrhizus spp.). por Heider, B., Romero, E., Grüneberg, W.J.

“…While the 'Chuin' type is characterized by high storage root dry matter content, P. erosus is high yielding and drought tolerant and P. ahipa performs well in high altitudes. The breeding experiment was designed as a completely diallelic cross between three P.ahipa and three P. tuberosus accessions and between three P. erosus und three P. tuberosus accessions. …”
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A systematic review of Rift Valley fever epidemiology 1931-2014 por Nanyingi, M.O., Munyua, P., Kiama, S.G., Muchemi, G.M., Thumbi, Samuel M., Bitek, A.O., Bett, Bernard K., Muriithi, R.M., Njenga, M.K.

“…Results and discussion: A total of 84 studies were included in this review; majority (50%) reported on common human and animal risk factors that included consumption of animal products, contact with infected animals and residing in low altitude areas associated with favorable climatic and ecological conditions for vector emergence. …”
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How to do Climate change risk assessments in value chain projects por Vermeulen, Sonja J.

“…However, climate change also has the potential to offer new opportunities for some agricultural value chains – for example by opening up higher altitude areas for farming. In general, these gains need to be balanced against concerns regarding biodiversity conservation and soil erosion on steep slopes, and may be offset by increasing extreme weather events. …”
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Agro-ecological niche of bacterial wilt (Xanthomonas campestris pv. musacearum) of enset (Ensete ventricosum (Welw.) Cheessman) in Gamo highlands of Ethiopia por Sabura, S., Swennen, Rony L., Deckers, J., Aerts, R., Weldeyes, F., Abebe, G., Hailemichael, A., Weldesenbet, F., Blomme, Guy, Vancampenhout, Karen

“…Hence, this study aims at correlating the distribution and severity of the disease to environmental factors such as soil type, fertility, climate and altitude, and to the socio-economical status of the farm households. …”
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Widespread occurrence and diversity of cassava brown streak virus (Potyviridae:Ipomovirus) in Tanzania por Rwegasira, G.M., Momanyi, G., Rey, M.E.C., Kahwa, G., Legg, James P.

“…Existing literature indicated limited distribution of the disease to low altitudes, usually <100 m above sea level, but the current geographical distribution of the disease was not known. …”
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