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Presents preliminary results of research on feed resource development conducted in the subhumid Kenyan coast. The studies are divided into two-systems studies and component studies. The systems studies include experiments on fodder production based on napier grass var. Bana grown in leucaena alle...
We explore the role of agriculture in destabilizing the Earth system at the planetary scale, through examining nine planetary boundaries, or “safe limits”: land-system change, freshwater use, biogeochemical flows, biosphere integrity, climate change, ocean acidification, stratospheric ozone deple...
Optimizing a three-way pact comprising crop yields, fertility inputs and greenhouse gases may minimize the contribution of croplands to global warming. Fluxes of N2O, CO2 and CH4 from soil were measured under maize (Zea mays L.) grown using 0, 60 and 120 kg N hm-2 as NH4NO3-N and composted manure...
Mixed farming systems in semi-arid West Africa rely on recycling organically bound nutrients to maintain soil productivity. The passage of plant biomass through ruminant livestock plays a major role in the nutrient cycles of this region. The feeding value of crop residues and browses and their im...
Summarises available information on bulk density and porosity, soil moisture infiltration, N, P and mineralogy. Literature on the phosphorus (P) status of soils, P nutrition of forage legumes and crops, mycorrhizal and P nutrition, species and varietal variation in response to P, P sorption isoth...
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