Etude de la fertilisation intégrée en milieu paysan dans la région naturelle du Mugamba (Burundi)
1992
Van den Berghe, C. | Sota, P. | Mujawayezu, A.
Study of the integrated fertilisation in farmers fields in the natural region of Mugamba (Burundi). In the frame of the cooperation between the CVHA project (Cultures vivrieres de Haute Altitude) and the Faculty of Agricultural Sciences in Bujumbura, Burundi, 75 trials were installed between 1988 and 1990 in the Mugamba region comparing the effect of non-treated and treated composts with fertilizers on potatoes. Chemical analysis of composts and soils proved several deficiencies. There was no significant difference between the yields for the treated composts at 10 t/ha and the non-treated composts at 20t/ha, which could lead to major savings in labour input. The economical analysis has proved that there was a positive and significant influence on profit, value/cost value and risk factor when treated and non-treated compost were compared. The exchangeable AP + in the soil after harvesting at Ijenda and Mpehe was significantly lower for the treated composts. For the P-Bray-1 these differences occurred at all sites of experimentation. It is strongly recommended that research on composting and application of the compost takes in account the experience of FAO in this field. In this context several trials have been installedin 1991 and 1992.
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