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Nutrient flux and balance studies are valuable tools to assess the sustainability of agro-ecosystems and potential consequences for agricultural productivity. This paper presents results from a study at the field/farm scale representing mixed farming systems typical for the East African Highlands...


Haileslassie, AmarePriess, J.A.Veldkamp, E.Lesschen, J.P.[Nutrient flows and balances at the field and farm scale: Exploring effects of land-use strategies and access to resources]Nutrient flows and balances at the field and farm scale: Exploring effects of land-use strategies and access to resources

Winowiecki, Leigh A.[Toward integrated analysis of socio-ecological data for improved targeting of resilient farming systems]Toward integrated analysis of socio-ecological data for improved targeting of resilient farming systems

The distribution of Trichoderma species in soils of Embu region in relation to land use practices was investigated. The study area was chosen because of its significant land use intensification. Soil washing and dilution plate techniques were used to recover Trichoderma spp from soil samples. The...


Okoth, Sheila A.Roimen, HMutsotso, BMuya, EAKahindi, JHPOwino, JOOkoth, Peter F.[Land use systems and distribution of Trichoderma species in Embu region, Kenya = Relación entre uso del suelo y la distribución de Trichoderma en la región de Embu, Kenia]Land use systems and distribution of Trichoderma species in Embu region, Kenya = Relación entre uso del suelo y la distribución de Trichoderma en la región de Embu, Kenia
Amarnath, GirirajPani, PeejushAlahacoon, NirangaChockalingam, J.Mondal, S.Matheswaran, K.Sikka, AlokRao, K. V.Smakhtin, Vladimir[Development of a system for drought monitoring and assessment in South Asia]Development of a system for drought monitoring and assessment in South Asia

In semi-arid south-western Niger, climatic variability, low productivity, poverty and institutional constraints limit the scope of agricultural production to meet the rising needs of the growing human population. The integration of crop and livestock production activities has long been seen as th...


Rovere, R. LaHiernaux, Pierre H.Y.Keulen, H. van[Options for intensification of mixed crop-livestock systems in rural communities of south-western Niger: Prospects and constraints]Options for intensification of mixed crop-livestock systems in rural communities of south-western Niger: Prospects and constraints

Intensification of land-use is inevitable for long term food security in the east African highlands, but technological options need to be environmentally safe. How forages can be used as a basis for intensified grain and fodder production from the same land unit, and serve as a profitable fallow ...


Mohamed-Saleem, M.A.Berhe, Kahsay[Forage based fallow management strategies for intensified land use and resource conservation in small holder farms]Forage based fallow management strategies for intensified land use and resource conservation in small holder farms

Climate change science has been discussed and synthesized by the world's best minds at unprecedented scales. Now that the Kyoto Protocol may become a reality, it is time to be realistic about the likelihood of success of mitigation activities. Pastoral lands in the tropics hold tremendous sequest...


Reid, Robin S.Thornton, Philip K.McCrabb, G.J.Kruska, R.L.Atieno, F.Jones, Peter G.[Is it possible to mitigate greenhouse gas emissions in pastoral ecosystems of the tropics?]Is it possible to mitigate greenhouse gas emissions in pastoral ecosystems of the tropics?

The effect of land use on the availability of nitrogen (N) was studied by separating total N into a labile and a stable fraction by oxidation and extraction of labile N with KMnO4. The nitrogen management index (NMI) was calculated following the method of Blair et al. (1995) for the carbon manage...


Westerhof, RVilela, LAyarza, Miguel AngelZech, W.[Land use effects on labile N extracted with permanganate and the nitrogen management index in the Cerrado region of Brazil]Land use effects on labile N extracted with permanganate and the nitrogen management index in the Cerrado region of Brazil

Differently managed oxisols from Central Brazil were studied using a sequential P fractionation procedure because the effects of land use on the distribution of P forms in these soils are barely known. Therefore levels of labile and recalcitrant P forms in the natural Cerrado savanna were compare...


Neufeldt, HenrySilva, J.E. daAyarza, Miguel AngelZech, W.[Land-use effects on phosphorus fractions in cerrado oxisols]Land-use effects on phosphorus fractions in cerrado oxisols

Natural entomopathogenic nematodes (EPNs) are considered as potential biological control agents against soil-borne insect pests. This study was conducted to determine the impact of land use on the distribution, occurrence and diversity of entomopathogenic nematode community. Isolation of EPNs was...


Kawaka, JFKimenju, J.W.Ayodo, GMwaniki, SWMuoma, JOOkoth, Sheila A.Orinda, G.O.[Impact of land use on the distribution and diversity of entomopathogenic nematodes in embu and taita districts, kenya]Impact of land use on the distribution and diversity of entomopathogenic nematodes in embu and taita districts, kenya

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