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Masvaya, ENNyamangara, JusticeNyawasha, RWZingore, ShamieDelve, Robert J.Giller, Ken E.[Effect of farmer management strategies on spatial variability of soil fertility and crop nutrient uptake in contrasting agro-ecological zones in Zimbabwe]Effect of farmer management strategies on spatial variability of soil fertility and crop nutrient uptake in contrasting agro-ecological zones in Zimbabwe

The International Center for Tropical Agriculture (CIAT) is celebrating 50 years of collaborative work with hundreds of partners across the tropics. During 50 years, CIAT has led the development and dissemination of technologies, innovative methods, and new knowledge that better enable farmers to...


International Center for Tropical Agriculture[The Impacts of CIAT’s Collaborative Research]The Impacts of CIAT’s Collaborative Research

The role of Contract Farming in the Development of a Competitive and Sustainable Cassava Sub-sector in Vietnam. Tiago Wandschneider, Project Leader SADU-CIAT 8th Asian Cassava Research Workshop Vientiane, 20-24 October.


Wandschneider, T.[The role of contract farming in the development of a competitive and sustainable cassava sub-sector in Vietnam]The role of contract farming in the development of a competitive and sustainable cassava sub-sector in Vietnam

As cassava is grown mostly by small resource-limited farmers throughout the tropics on low-fertility soils with little fertilization and, due to the large potassium (K) export in harvested roots, genotypes that tolerate low-K soils and respond to K fertilization are warranted. The objective of th...


El-Sharkawy, Mabrouk A.Cadavid López, Luis Fernando[Genetic variation within cassava germplasm in response to potassium]Genetic variation within cassava germplasm in response to potassium
Martínez, A.León Sarmiento, Luis AlfredoNavas Alvarado, J[Uso potencial de rocas fosfóricas y de rocas fosfóricas parcialmente aciduladas en la agricultura colombiana]Uso potencial de rocas fosfóricas y de rocas fosfóricas parcialmente aciduladas en la agricultura colombiana

Researchers worked with farmers in eastern Uganda to develop alternatives for soil management using crotalaria (Crotalaria ochroleuca), mucuna (Mucuna pruriens var. utilis), lablab (Dolichos lablab), and canavalia (Canavalia ensiformis) as green manures in short-term fallows. The participatory re...


Fischler, MAWortmann, Charles S.[Green manures for maize-bean systems in eastern Uganda: Agronomic performance and farmers' perceptions]Green manures for maize-bean systems in eastern Uganda: Agronomic performance and farmers' perceptions

Atmospheric biological nitrogen fixation (BNF) by cowpea (Vigna unguiculata) and groundnut (Arachis hypogea) was evaluated using a 2-year (2000–2001) experiment with different fertilizer treatments. The 15N isotopic dilution method with a nonfixing cowpea as test reference crop was used. The effe...


Bado, BVBationo, B. AndréCescas, MP[Assessment of cowpea and groundnut contributions to soil fertility and succeeding sorghum yields in the Guinean savannah zone of Burkina Faso (West Africa)]Assessment of cowpea and groundnut contributions to soil fertility and succeeding sorghum yields in the Guinean savannah zone of Burkina Faso (West Africa)

The effects of a large species of anecic earthworm, Martiodrilus carimaguensis Jiménez and Moreno, on soil C and N dynamics were investigated in a native savanna and a man-made pasture of the eastern plains of Colombia. We compared, across time (11 months), the total C, total N, NH+ 4 and NO– 3 c...


Decaëns, ThibaudRangel Becerra, AFAsakawa, N.Thomas, Richard J.[Carbon and nitrogen dynamics in ageing earthworm casts in grasslands of the eastern plains of Colombia]Carbon and nitrogen dynamics in ageing earthworm casts in grasslands of the eastern plains of Colombia

Traditionally, crop production in sub-Saharan Africa (SSA) depends primarily on mining soil nutrients. Integrated Soil Fertility Management (ISFM) is an approach for intensifying agriculture in SSA that aims at maximizing the agronomic efficiency (AE) of applied nutrient inputs. ISFM contains the...


Vanlauwe, BernardKihara, JobChivenge, P.P.Pypers, PieterCoe, R.Six, Johan[Agronomic use efficiency of N fertilizer in maize-based systems in sub-Saharan Africa within the context of integrated soil fertility management]Agronomic use efficiency of N fertilizer in maize-based systems in sub-Saharan Africa within the context of integrated soil fertility management

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