Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 110998
Title Gestion de la fertilité des sols par classe d'exploitation au Mali-Sud
Author(s) Kanté, S.
Source Wageningen University. Promotor(en): H. van Keulen; E.M.A. Smaling. - S.l. : S.n. - ISBN 9789058085696 - 236
Department(s) Plant Production Systems
Laboratory of Soil Science and Geology
PE&RC
Publication type Dissertation, internally prepared
Publication year 2001
Keyword(s) bodemvruchtbaarheid - mest - oogstresten - voedingsstoffen - boekhouding - agrarische bedrijfsvoering - kosten-batenanalyse - semi-aride klimaatzones - mali - soil fertility - manures - crop residues - nutrients - accounting - farm management - cost benefit analysis - semiarid zones - mali
Categories Fertilizers, Fertilizer Application
Abstract In Southern Mali, it becomes increasingly difficult to take poor and overused arable land and pastures temporarily out of production, at a time when growing human and animal populations require increasing amounts for food and feed. In fact, the tendency is towards continuous cultivation, and as organic and mineral fertilizers appear not to compensate for nutrient losses, farmers, herdsmen and development workers are all worried about the sustainability of the current arable and agro-pastoral systems. This study carried out in two villages and for three 'manure and residue management' categories of farms, intends to: (1) identify manure production and residue management strategies that reflect differences in pressure on the land; (2) measure, monitor and calculate nutrient inputs and outputs per farm category; (3) perform a cost-benefit analysis on the management of crop residues; (4) develop a decision support tool for residue and manure management. The study shows that the higher the pressure on the land, the more efforts farmers have to make to feed their animals and to keep their soils fertile. During the 3 years of monitoring, partial nutrient balances (nutrient inputs in mineral and organic fertilizers minus nutrients withdrawn in crops and residues) were positive. Also, it is shown that the use of manure, including its residual effect during a second year, generates a surplus of 0.2-2 West African Francs (CFA) for every franc invested. Production of manure can be increased by 1 to 4 tons per farm holding, depending on the farm category. These all have their own strategy based on the socio-economic realities. Finally, some research avenues for soil fertility improvement are depicted, based on effective participation of all individuals that have a stake in rural development in Southern Mali.

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