Gestion de la fertilité des sols par classe d'exploitation au Mali-Sud

S. Kanté

Research output: Thesisinternal PhD, WU

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3 years of monitoring, partial nutrient balances (nutrient inputs in mineral and organic fertilizers minus nutrients withdrawn in crops and residues) were positive.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.</p>
Original languageFrench
QualificationDoctor of Philosophy
Awarding Institution
  • Wageningen University
Supervisors/Advisors
  • van Keulen, H., Promotor
  • Smaling, Eric, Promotor
Award date12 Dec 2001
Place of PublicationS.l.
Publisher
Print ISBNs9789058085696
Publication statusPublished - 2001

Keywords

  • soil fertility
  • manures
  • crop residues
  • nutrients
  • accounting
  • farm management
  • cost benefit analysis
  • semiarid zones
  • mali

Cite this

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title = "Gestion de la fertilit{\'e} des sols par classe d'exploitation au Mali-Sud",
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.",
keywords = "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",
author = "S. Kant{\'e}",
note = "WU thesis 3105 Met. lit. opg. - Met een samenvatting in het Frans en Nederlands Proefschrift Wageningen",
year = "2001",
language = "French",
isbn = "9789058085696",
publisher = "S.n.",
school = "Wageningen University",

}

Kanté, S 2001, 'Gestion de la fertilité des sols par classe d'exploitation au Mali-Sud', Doctor of Philosophy, Wageningen University, S.l..

Gestion de la fertilité des sols par classe d'exploitation au Mali-Sud. / Kanté, S.

S.l. : S.n., 2001. 236 p.

Research output: Thesisinternal PhD, WU

TY - THES

T1 - Gestion de la fertilité des sols par classe d'exploitation au Mali-Sud

AU - Kanté, S.

N1 - WU thesis 3105 Met. lit. opg. - Met een samenvatting in het Frans en Nederlands Proefschrift Wageningen

PY - 2001

Y1 - 2001

N2 - 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.

AB - 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.

KW - bodemvruchtbaarheid

KW - mest

KW - oogstresten

KW - voedingsstoffen

KW - boekhouding

KW - agrarische bedrijfsvoering

KW - kosten-batenanalyse

KW - semi-aride klimaatzones

KW - mali

KW - soil fertility

KW - manures

KW - crop residues

KW - nutrients

KW - accounting

KW - farm management

KW - cost benefit analysis

KW - semiarid zones

KW - mali

M3 - internal PhD, WU

SN - 9789058085696

PB - S.n.

CY - S.l.

ER -