publication
Importance of considering technology growth in impact assessments of climate change on agriculture
https://hdl.handle.net/10568/100876
Abstract
Many assessments of climate change impacts on global crop yields project declines as early as the 2020s. Losses are projected to increase with time, up to 50% by the 2080s. We carry out a systematic global review and compare published projections of climate change impacts from 34 studies and ∼4500 data points for the 2020s for maize, rice and wheat at country level with observed and…
publication
Decision support tools for site-specific fertilizer recommendations and agricultural planning in selected countries in sub-Sahara Africa
https://hdl.handle.net/10568/88013
Publication year
2018
Authors
MacCarthy, Dilys Sefakor
Kihara, Job Maguta
Masikati, Patricia
Adiku, Samuel G.K.
Full Citation
MacCarthy, Dilys S.; Kihara, Job; Masikati, Patricia; Adiku, Samuel G. K…
publication
A global alliance declaring war on cassava viruses in Africa
https://hdl.handle.net/10568/41899
Abstract
Cassava, originally from South America, is the fourth most important source of calories in the developing world after the cereal crops wheat, maize, and rice. Worldwide, it feeds an estimated 700 million people directly or indirectly. Cassava production has increased steadily for the last 50 years, with 242 MT harvested in 2012. The increase is likely to continue as farmers in more than 105 countries come to recognize the crop’s…
publication
Arbuscular mycorrhizal fungi with different soil fertility amendment practices in agricultural landscapes of Kenyan highlands
https://hdl.handle.net/10568/68956
Publication year
2015
Authors
Nyaga, John
Jefwa, J.M.
Muthuri, Catherine W.
Matiru, Viviene N
Wachira, Peter M
Okoth, Sheila A.
Full Citation
Nyaga, John; Jefwa, Joyce M.; Muthuri…
publication
Evaluation of ten tropical legume forages for their potential as pig feed supplement
https://hdl.handle.net/10568/33529
Abstract
Herbage of Cratylia argentea, Desmodium velutinum, Fleminigia macrophylla, Leucaena diversifolia, Canavalia brasiliensis, Centrosema brasilianum, Clitoria ternatea, Lablab purpureus, Stylosanthes guianensis and Vigna unguiculata from the CIAT (International Center for Tropical Agriculture) gene bank were assessed for their nutritional value and in-vitro digestibility for pigs in order to predict their…
publication
Media optimization and lipid formation of two native diatoms for cultivation in the Southwest Texas desert
https://hdl.handle.net/10568/43713
Publication year
2014
Authors
Chagoya, Jennifer C
Brown, Jola
Gómez Selvaraj, Michael
Zhang, Junling
Jiang, Yuelu
Laverty, Katherine
Brown, Lou
Quigg, Antonietta
Burow, Mark D…
publication
Desarrollo de líneas de frijol (Phaseolus vulgaris L.) tolerante a sequía a partir de cruces inter acervo con genotipos procedentes de diferentes orígenes (Mesoamericano y Andino)
https://hdl.handle.net/10568/73455
Abstract
La principal causa de la baja productividad en campo es la sequía, y como la mayoría de métodos para contrarrestarle son costosos e inasequibles para los agricultores de bajos recursos, se ha encontrado que el mejoramiento genético es la opción más económica para incrementar o estabilizar la producción de frijol…
publication
Genomics, genetics and breeding of tropical legumes for better livelihoods of smallholder farmers
https://hdl.handle.net/10568/92489
Abstract
Legumes are important components of sustainable agricultural production, food, nutrition and income systems of developing countries. In spite of their importance, legume crop production is challenged by a number of biotic (diseases and pests) and abiotic stresses (heat, frost, drought and salinity), edaphic factors (associated with soil nutrient deficits) and policy issues (where less emphasis…
publication
Urgent action to combat climate change and its impacts (SDG 13): transforming agriculture and food systems
https://hdl.handle.net/10568/96615
Abstract
Actions on climate change (SDG 13), including in the food system, are crucial. SDG 13 needs to align with the Paris Agreement, given that UNFCCC negotiations set the framework for climate change actions. Food system actions can have synergies and trade-offs, as illustrated by the case for nitrogen fertiliser. SDG 13 actions that reduce emissions can have positive impacts on other SDGs…
publication
Differences in root distribution, nutrient acquisition and nutrient utilization by tropical forage species grown in degraded hillside soil conditions
https://hdl.handle.net/10568/78695
Abstract
Low nutrient availability, especially phosphorus (P) and nitrogen (N) supply is the major limitation to forage production in acid infertile soils of the tropics. A field study was conducted at the farm ‘La Es- peranza’ located in Mondomo, Department of Cauca, in the coffee growing zone of Colombia. The main objective was to determine…
publication
The response of soil respiration to climatic drivers in undrained forest and drained oil palm plantations in an Indonesian peatland
https://hdl.handle.net/10568/98515
Publication year
2019
Authors
Swails, E.
Hertanti, D.
Hergoualc'h, Kristell
Verchot, Louis V.
Lawrence, D.
Full Citation
Swails, E., Hertanti, D., Hergoualc’h, K. et al. The response…
publication
The effect of inoculant and sucrose addition on the silage quality of tropical forage legumes with varying ensilability
https://hdl.handle.net/10568/33524
Abstract
The ensiling potential of 10 tropical forage legumes and one Brachiaria grass hybrid with dry matter (DM) ranging from 260 to 540 g/kg fresh matter (FM), and the effect of 4 treatments (Control, 20 g/kg FM sucrose, native Lactobacillus plantarum inoculant, L. plantarum +20 g/kg FM sucrose) on the fermentation quality of their silages after 92 d storage were assessed at…
publication
Assessing relevant climate data for agricultural applications
https://hdl.handle.net/10568/25143
Publication year
2012
Authors
Ramírez Villegas, Julián Armando
Challinor, Andrew J.
Full Citation
Ramirez-Villegas J, Challinor A J. 2012. Assessing relevant climate data for agricultural applications. Agricultural and Forest Meteorology 161: 26–45.
DOI
https://…
publication
Spatial variability of soil N2O and CO2 fluxes in different topographic positions in a tropical montane forest in Kenya
https://hdl.handle.net/10568/80052
Abstract
Quantifying and understanding the small-scale variability of nitrous oxide (N2O) and carbon dioxide (CO2) emission is essential for reporting accurate ecosystem greenhouse gas budgets. The objective of this study was to evaluate the spatial pattern of soil CO2 and N2O emissions and their relation to topography in a tropical montane forest. We measured fluxes of N2O and CO2…
publication
Identification of genes that have undergone adaptive evolution in cassava (Manihot esculenta) and that may confer resistance to cassava brown streak disease
https://hdl.handle.net/10568/56288
Publication year
2015
Authors
Ferguson, Morag E.
Koga, TM
Johnson, DA
Koga, KA
Hirsch, GN
Becerra López Lavelle, Luis Augusto
Messier, W
Full Citation…
