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Known as “meat for the poor”, beans constitute a predominant source of proteins in Rwandese diet since they supply 65% of national dietary proteins compared to 4% from animal sources.
However, the on-farm bean productivity is about 0.8 – 1.0 tons/ hectare which is quite low compared to 5 tons/hectare that is achieved under optimal management conditions.
The experimental design was a split plot in completely randomized design (CRD) with two main plots (with and without Rhizobium inoculum); four sub-plots (Cattle Manure, DAP, Cattle manure + DAP, untreated control).
Average yields from inoculated and non-inoculated treatments showed statistically significant difference (P< 0.0001), that is 3900 kg/ha from inoculated plots and 2946 kg/ha from non-inoculated.
Statistically significant differences were also found among treatments (P<0.0001) with the highest mean yield of 4782 kg/ha obtained from treatment Inoculum + DAP + Cattle Manure against 2640 kg/ha from untreated (control) plots.
The mean number of nodules was significantly different (P< 0.0001) between inoculated (60 nodules) and non-inoculated (15 nodules) plots.
Ms Nadia MusaninkindiWorking for Chemonics International Inc.
as a technical Assistant at USAID/FEWS NET.Dr.
MUHINDABoard Director of several national and international institutions.Prof.
MochogeProfessor of soil science at the Department of Agricultural Resource Management, Kenyatta University.
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