Bean ( Phaseolus vulgaris check for this species in other resources L.) production in Africa is constrained by edaphic stresses. A pan-African effort, Bean Improvement for Low Fertility in Africa (BILFA), was initiated in 1990 to screen beans for tolerance to several edaphic stresses. In the fir...
Wortmann, Charles S.
,
Lunze, L
,
Ochwoh, VA
,
Lynch, J
,
[Bean improvement for low fertility soils in Africa]
,
Bean improvement for low fertility soils in Africa
Ndung'u-Magiroi, Keziah Wairimu
,
Waswa, Boaz S.
,
Bationo, B. André
,
Okalebo, John Robert
,
Othieno, Caleb
,
Herrmann, Laetitia
,
Lesueur, Didier
,
[Minjingu phosphate rock applications increase the population of phosphate solubilising microorganisms with a positive impact on crop yields in a Kenyan Ferralsol]
,
Minjingu phosphate rock applications increase the population of phosphate solubilising microorganisms with a positive impact on crop yields in a Kenyan Ferralsol
Populations of Legume Nodulating Bacteria (LNB) were assessed under glasshouse conditions in soils collected from selected landuse systems in Taita Taveta district, Kenya. The populations were estimated by the most-probable-number (MPN) plant infection technique using Macroptilium atropurpureum (...
Mwangi, Simon N.
,
Karanja, Nancy M.
,
Boga, Hamadi M.
,
Kahindi, James M.
,
Muigai, A.M.
,
Odee, D.
,
Mwenda, George M.
,
[Genetic diversity and symbiotic efficiency of legume nodulating bacteria from different land use systems in taita taveta, kenya]
,
Genetic diversity and symbiotic efficiency of legume nodulating bacteria from different land use systems in taita taveta, kenya
A glasshouse experiment was conducted to determine how reduction conditions would affect plant nutrient availability and uptake in a red-yellow latosol (Acrustox). Soil analysis showed that the most important changes were a marked increase in extractable iron and an inhibition of nitrification. T...
Couto, W.
,
Sanzonowics, C
,
Leite, GG
,
[Effect of excess water in an oxisol on ammonium, nitrate, iron and manganese availability and nutrient uptake of two tropical forage species]
,
Effect of excess water in an oxisol on ammonium, nitrate, iron and manganese availability and nutrient uptake of two tropical forage species
Near infrared reflectance spectroscopy (NIRS) analysis was used to discriminate soils of different agroecosystems in Colombia, with different contents and qualities of organic matter, chemical, and biological properties.
Correlations were sought between absorbance in wavelength classes as determ...
Velásquez, E.
,
Lavelle, Patrick M.
,
Barrios, E.
,
Joffre, R
,
Reversat, F
,
[Evaluating soil quality in tropical agroecosystems of Colombia using NIRS]
,
Evaluating soil quality in tropical agroecosystems of Colombia using NIRS
Canavalia ensiformis, Crotalaria grahamiana, Dolichos lablab, Mucuna pruriens, Tephrosia vogellii and Tithonia diversifolia were evaluated as potential species for soil fertility replenishment in on-farm adaptive trials, farm visits and field days in Tororo District, eastern Uganda. Farmers used ...
Nyende, P
,
Delve, Robert J.
,
[Farmer participatory evaluation of legume cover crop and biomass transfer technologies for soil fertility improvement using farmer criteria, preference ranking and logit regression analysis]
,
Farmer participatory evaluation of legume cover crop and biomass transfer technologies for soil fertility improvement using farmer criteria, preference ranking and logit regression analysis
Many food production systems in sub-Saharan Africa are constrained by phosphorus (P). We hypothesized that within legume-cereal rotation systems: targeting P to the legume phase leads to higher system productivity, and that use of grain legumes leads to better economic returns than use of herbace...
Kihara, Job
,
Vanlauwe, Bernard
,
Waswa, Boaz S.
,
Kimetu, J.M.
,
Chianu, J.N.
,
Bationo, B. André
,
[Strategic phosphorus application in legume-cereal rotations increases land productivity and profitability in Western Kenya]
,
Strategic phosphorus application in legume-cereal rotations increases land productivity and profitability in Western Kenya
Strong gradients of decreasing soil fertility are found with increasing distance from the homestead within smallholder African farms, due to differential resource allocation. As nutrient use efficiency varies strongly along these gradients, such heterogeneity must be considered when designing soi...
Tittonell, Pablo A.
,
Vanlauwe, Bernard
,
Leffelaar, P.A.
,
Shepherd, Keith D.
,
Giller, Ken E.
,
[Exploring diversity in soil fertility management of smallholder farms in western Kenya. II. Within-farm variability in resource allocation, nutrient flows and soil fertility status]
,
Exploring diversity in soil fertility management of smallholder farms in western Kenya. II. Within-farm variability in resource allocation, nutrient flows and soil fertility status
Fusarium root rot of maize and beans is a common problem in Taita District, Kenya causing reduction in yields to the small scale farmers. The pathogen attacks maize and beans at all growth stages causing rot at the seedling stage, yellowing of the leaves, stunted growth, and death if severe. Pote...
Okoth, Sheila A.
,
Siameto, E
,
[Evaluation of selected soil fertility management interventions for suppression of fusarium spp. in a maize and beans intercrop]
,
Evaluation of selected soil fertility management interventions for suppression of fusarium spp. in a maize and beans intercrop