1.3 Conditions regarding the use of data documented through WOCAT

The compiler and key resource person(s) accept the conditions regarding the use of data documented through WOCAT:

Yes

2.1 Short description of the Technology

Definition of the Technology:

Rotational fertilization is an integrated crop-livestock management measure practiced by the agropastoralist Peulh.

2.2 Detailed description of the Technology

Description:

At intervals of 2-3 years the Peulh agropastoralists relocate with their livestock to a new area previously used for crop cultivation - where they install their temporary dwellings and improve soil fertility by applying farmyard manure and other organic materials.

The rotation of temporary habitation areas leads to successive fertilization of the land. Livestock (cattle or small ruminants) are corralled or tethered in the rehabilitation area over-night. They feed on crop residues and emerging grasses after harvesting of the crops. Dung dropped within the coral area is collected and then distributed on the fields. The main criterion for site selection is the level of land degradation. The size of the area occupied is maximum 500 m2, and depends on family size, herd size and on the quantitative and qualitative objectives of soil fertilization of the land owner.

In the years after settlement (after families move to a new location) the treated area is used for crop cultivation, and crop rotation/intercropping are practiced (e.g. millet/ legumes) for increased and diversified production, improved pest control and fertility management.

The effectiveness of this technology has led to field-fertilization contracts between agro-pastoralists and sedentary farmers. The farmers offer post-harvest grazing rights to the agropastoralists who in turn fertilize the land and benefit from the access to the important weekly markets in the area where they can sell milk. In this case the agropastoralist families and their livestock split up after the rainy season: a part assures fertilization of the own land, the other part is in charge of fertilizing foreign land (during 3-4 months) before returning home.

2.3 Photos of the Technology

2.5 Country/ region/ locations where the Technology has been applied and which are covered by this assessment

2.6 Date of implementation

If precise year is not known, indicate approximate date:

• more than 50 years ago (traditional)

2.7 Introduction of the Technology

Specify how the Technology was introduced:

• as part of a traditional system (> 50 years)

3.2 Current land use type(s) where the Technology is applied

Comments:

Major land use problems (land users’ perception): Soil fertility decline, soil erosion by wind and water

Semi-nomadism / pastoralism: Yes

Livestock is grazing on crop residues

3.3 Further information about land use

Comments:

Water supply: rainfed, rainfed

3.5 Spread of the Technology

Comments:

Total area covered by the SLM Technology is 1500 m2.

3.6 SLM measures comprising the Technology

Comments:

Main measures: agronomic measures, management measures

Type of agronomic measures: manure / compost / residues

3.7 Main types of land degradation addressed by the Technology

Comments:

Main type of degradation addressed: Wt: loss of topsoil / surface erosion, Et: loss of topsoil, Cn: fertility decline and reduced organic matter content

3.8 Prevention, reduction, or restoration of land degradation

Specify the goal of the Technology with regard to land degradation:

• restore/ rehabilitate severely degraded land

Comments:

Main goals: rehabilitation / reclamation of denuded land

4.2 Technical specifications/ explanations of technical drawing

Technical knowledge required for field staff / advisors: (not applicable)

Technical knowledge required for land users: low

Main technical functions: increase in organic matter, increase in nutrient availability (supply, recycling,…)

Manure / compost / residues
Material/ species: farmyard manure and other organic materials

4.6 Maintenance/ recurrent activities

	Activity	Type of measure	Timing/ frequency
1.	On land being treated: on-going fertilisation by applying farmyard manure and any kind of organic material accruing from daily human activities to the soil during 2-3 years	Agronomic	during 2-3 years
2.	On land being treated: on-going fertilisation by applying farmyard manure and any kind of organic material accruing from daily human activities to the soil during 2-3 years	Agronomic	during 2-3 years
3.	On land being treated: on-going fertilisation by applying farmyard manure and any kind of organic material accruing from daily human activities to the soil during 2-3 years	Agronomic	during 2-3 years
4.	On land being treated: on-going fertilisation by applying farmyard manure and any kind of organic material accruing from daily human activities to the soil during 2-3 years	Agronomic	during 2-3 years
5.	On land being treated: on-going fertilisation by applying farmyard manure and any kind of organic material accruing from daily human activities to the soil during 2-3 years	Agronomic	during 2-3 years
6.	Maintenance/ re-location of huts to improve fertilization of land (after rainy season).	Agronomic
7.	On previously treated land: Land preparation (ploughing, e.g. cowpea).	Agronomic
8.	Cultivation of millet and legumes ('niébé') as intercrop or in the form of crop rotation.	Agronomic

4.8 Most important factors affecting the costs

Describe the most determinate factors affecting the costs:

Establishment of housing infrastructure is done collectively, involving dozens of community members within less than a week. Construction material is taken from the woodlands; many parts are re-used after moving. While expenses are expressed in US$, in reality costs are in kind (mutual help) or not paid for (free lumber). Maintenance activities include: maintenance and re-building of dwellings. Costs for crop cultivation (US$ 335-535 annually) are not included.

5.1 Climate

5.2 Topography

5.3 Soils

5.6 Characteristics of land users applying the Technology

Indicate other relevant characteristics of the land users:

Land users applying the Technology are mainly disadvantaged land users

Population density: 10-50 persons/km2

(100).

Market orientation of production system: subsistence (self-supply), subsistence (self-supply), mixed (subsistence/ commercial

5.7 Average area of land owned or leased by land users applying the Technology

5.8 Land ownership, land use rights, and water use rights

Land ownership:

• individual, not titled

Land use rights:

• individual
• communal (organized)

Comments:

Land use rights: individual, communal (organized)

6.1 On-site impacts the Technology has shown

Socio-economic impacts

Production

Income and costs

Socio-cultural impacts

Ecological impacts

Soil

Biodiversity: vegetation, animals

Climate and disaster risk reduction

6.2 Off-site impacts the Technology has shown

6.3 Exposure and sensitivity of the Technology to gradual climate change and climate-related extremes/ disasters (as perceived by land users)

Gradual climate change

Gradual climate change

	Season	Type of climatic change/ extreme	How does the Technology cope with it?
annual temperature		increase	well

Climate-related extremes (disasters)

Meteorological disasters

	How does the Technology cope with it?
local rainstorm	not well
local windstorm	not well

Climatological disasters

	How does the Technology cope with it?
drought	not well

Hydrological disasters

	How does the Technology cope with it?
general (river) flood	not well

Other climate-related consequences

Other climate-related consequences

	How does the Technology cope with it?
reduced growing period	well

6.4 Cost-benefit analysis

How do the benefits compare with the establishment costs (from land users’ perspective)?

How do the benefits compare with the maintenance/ recurrent costs (from land users' perspective)?

Comments:

The impact of the measure on soil productivity is increasing in the mid and long term

6.5 Adoption of the Technology

Comments:

There is a strong trend towards spontaneous adoption of the Technology

Comments on adoption trend: Its high effectiveness has helped spread the technology to adjacent areas on the other side of the river Niger, where farmers contract the agropastoralists for their ‘fertilization service’. The area covered by the technology is approximately 1'500 km2.

6.8 Weaknesses/ disadvantages/ risks of the Technology and ways of overcoming them

Weaknesses/ disadvantages/ risks in the compiler’s or other key resource person’s view	How can they be overcome?
Growing costs and decreasing availability of timber and poles for establishment of infrastructure	re-introduce traditional techniques of long-term conservation of housing materials.
High labour input for implementation	reinforce community structures for mutual help.
Area treated by the technology is too small regarding the area in need of treatment (degraded land)	reinforce the solidarity between communities to increase the treated area.
Negative effect on the woodland (brousse tigrée): cutting for building materials, clearing for cultivation	identify new ecological materials for house construction; tree plantation.
Marginalization of families with low activity potential	reinforce mutual help systems to support poor / small families.

7.2 References to available publications

Title, author, year, ISBN:

Caroline Dandois Dutordoir (2006): Impact de pratiques de gestion de la fertilité sur les rendements en mil dans le Fakara (Niger), Université catholique de Louvain, 2006

Title, author, year, ISBN:

Bationo, A., Ntare, B. R. 2000 : Rotation and nitrogen fertilizer effects on pearl millet, cowpea and groundnut yield and soil chemical properties in a sandy soil in the semiarid tropics, West Africa. Journal of Agricultural Science, 134, p. 277-284.

Available from where? Costs?

Journal of Agricultural Science, 134, p. 277-284.

Title, author, year, ISBN:

Ministère du développement agricole (2005): recueil des fiches techniques en gestion des ressources naturelles et de productions agro-sylvo-pastorales.