1.2 Coordonnées des personnes-ressources et des institutions impliquées dans l'évaluation et la documentation de la Technologie

1.3 Conditions relatives à l'utilisation par WOCAT des données documentées

Quand les données ont-elles été compilées (sur le terrain)?

25/07/2014

Le compilateur et la(les) personne(s) ressource(s) acceptent les conditions relatives à l'utilisation par WOCAT des données documentées:

Oui

1.4 Déclaration sur la durabilité de la Technologie décrite

Est-ce que la Technologie décrite ici pose problème par rapport à la dégradation des terres, de telle sorte qu'elle ne peut pas être déclarée comme étant une technologie de gestion durable des terres?

Non

2.1 Courte description de la Technologie

Définition de la Technologie:

Is the cross slope berrier charactrised by contour bunds, cajanus can, pineapples, farm yard manures and grass mulch in banana production.

2.2 Description détaillée de la Technologie

Description:

The contour band stabilized with cajanus cajan and pineapples in the composite manures and trushline application technology is the digging of a 0.6m wide by 0.6m deep along the demarcated contour line, while two rows of cajanus cajan planted along the band spaced at 0.3m and two rows of pineapples at alternating band spaced at 0.3m. The overall purpose of the technology is to reduce soil erosions while increasing soil water infiltration and retaining soil water moisture. The technology is applied perennial cropland in the sub humid climatic zone on the gentle to moderate slope, loam soils with medium soil depth. The technology is done manually using hand hoes and mattock in a mixed production system, land owned individually not titled while the total cost to implement a technology on 0.2ha in the banana field was calculated to be US$ …..

The purpose is to increase land productivity, improve livelihood as well as improved ecosystem and micro climate. This should be attained by improving water use efficiency, soil fertility inprovement to increase crop productivity and generating incomes.

The establishment procedures require the determination of the slope and demarcation of a contour line using a tool known as A-frame. This is done manually during the rainy season. The digging and excavation of the soils is done at the end of harvesting annual crops (bean and maize) using hand hoes manually. The cajanus cajan seeds are sown in two rows along the band and the next band is planted with two rows of pinepples at 0.3m between rows as well as between plants. The shallow ditch measuring 0.6m by 0.6m is excavated at the centre of four banana stools to collect crop residues to decompose and apply them. Old banana stools are up rooted at the end of rain season while measurements and digging of holes done. The spacing is 3.6m by 3.6m for the planted medium variety. The hole measurements is 0.6m width by 0.6m length by 0.3m depth. The farmyard manures are mixed with top soils and covered in the hole for three months before planting. The planting is done before the onset of rainfalls. The dry grass mulch is applied across the slope with a thickness of 0.15m at the onset of rainfalls.
The maintenance procedures require the remove of sedments at the end of rainseason done manually using spades. The trimming of cajanus cajan and pineapples are done manually during the harvesting season. Desuckering and detrushing of banana plants are done twice after harvesting annual crops while grass mulch followed.

Average annual rainfall (750 to 1,000)mm, Altitude (m a.s.l.) (1,000 -1,500)m Landform is hill slope to foot slope, Soil depth (>20 cm) shallow about 20%, (20-50cm) medium about 60% and (50-80cm) deep about 20%, Soil water storage capacity: medium, Soil texture: medium (loam), Soil fertility: low, Topsoil organic matter: medium (1-3%) and Soil drainage/infiltration: medium. Cropland per household is 2-5 ha, Land user are Individual / household, Small scale land users, common / average land users, men and women. Population density: 200-500 persons/km2, Annual population growth: < 0.5%, Land ownership: individual, not titled Land use rights: individual, Water use rights: open access (unorganised) Relative level of wealth: rich, which represents 5% of the land users; 21% of the total area is owned by rich land users average, which represents 64% of the land users; 64% of the total area is owned by average land users poor, which represents 21% of the land users; 5% of the total area is owned by poor land users Market orientation: mixed (subsistence and commercial) Mechanization: manual labour

2.3 Photos de la Technologie

2.5 Pays/ région/ lieux où la Technologie a été appliquée et qui sont couverts par cette évaluation

2.6 Date de mise en œuvre de la Technologie

Si l'année précise est inconnue, indiquez la date approximative: :

• il y a moins de 10 ans (récemment)

2.7 Introduction de la Technologie

Spécifiez comment la Technologie a été introduite: :

• par le biais de projets/ d'interventions extérieures

Commentaires (type de projet, etc.) :

The technology was introduced in 2012 using FFS metodology (at host farmer sites) and results demonstration (at FEC) as a choice of technology.

3.1 Principal(aux) objectif(s) de la Technologie

• améliorer la production
• réduire, prévenir, restaurer les terres dégradées

3.2 Type(s) actuel(s) d'utilisation des terres, là où la Technologie est appliquée

Commentaires:

Major land use problems (compiler’s opinion): The major land use problem relatrd to soil, water and vegetation in the area without conservation was loss of soil water moisture, reduced soil nutrients and soil erosion.
Major land use problems (land users’ perception): The major land use problem related to soil, water and vegetation without conservation was declining soil productivity.

3.3 Informations complémentaires sur l'utilisation des terres

Approvisionnement en eau des terres sur lesquelles est appliquée la Technologie:

• pluvial

Nombre de période de croissance par an: :

• 2

Précisez:

Longest growing period in days: 120, Longest growing period from month to month: September to December; Second longest growing period in days: 90, Second longest growing period from month to month: March to May

3.4 Groupe de GDT auquel appartient la Technologie

• mesures en travers de la pente

3.5 Diffusion de la Technologie

Spécifiez la diffusion de la Technologie:

• répartie uniformément sur une zone

Si la Technologie est uniformément répartie sur une zone, indiquez la superficie couverte approximative:

• < 0,1 km2 (10 ha)

Commentaires:

Three host farmers isued 1.5 acres as site implimentation other 32 group members required to do what they learned at their homes.

3.6 Mesures de GDT constituant la Technologie

Commentaires:

Type of agronomic measures: mulching, legume inter-planting, manure / compost / residues
Type of vegetative measures: aligned: -contour, aligned: -linear

3.7 Principaux types de dégradation des terres traités par la Technologie

Commentaires:

Main causes of degradation: soil management (Cultivation along the slope), disturbance of water cycle (infiltration / runoff) (cultivation along the slope), change of seasonal rainfall (un determined rainfall parterns), droughts (the area normally experiences a long dry spell of about 290 days), population pressure (croping along the slope and natural forests), poverty / wealth (Land user can not afford to invest in land conservation), education, access to knowledge and support services (lInadequate staffing to diseminate technology massages.), governance / institutional (weak environmental law inforcements and lack of community sensitization..)

3.8 Prévention, réduction de la dégradation ou réhabilitation des terres dégradées

Spécifiez l'objectif de la Technologie au regard de la dégradation des terres:

• prévenir la dégradation des terres
• réduire la dégradation des terres

4.1 Dessin technique de la Technologie

4.2 Spécification/ explications techniques du dessin technique

Furrow measurements is 0.6m wide by 0.6m deep across the slope; space between the structure is 18m, banana space is 3.6m by 3.6m; grass mulch thickness is 0.15m and composite is prepared at the center of four banana stools to be applied topically in the shallow furrow towards the grand daughter banana sacker.
Location: Rwabilulu sub village, Rusumo village. Ngara/Kagera/Tanzania
Date: 25/07/2014

Technical knowledge required for field staff / advisors: low (The technology basic principles are taught at colleges.)
Technical knowledge required for land users: moderate (Slope measurements and use of A-frame is a new idea to land users .)
Main technical functions: control of raindrop splash, control of dispersed runoff: retain / trap, control of dispersed runoff: impede / retard, reduction of slope length, stabilisation of soil (eg by tree roots against land slides), increase in organic matter, increase in nutrient availability (supply, recycling,…), increase of infiltration, increase / maintain water stored in soil
Secondary technical functions: control of concentrated runoff: retain / trap, increase of biomass (quantity)

Mulching
Material/ species: grass mulch
Quantity/ density: 1500
Remarks: spread across the slope with thckess 0.15m

Legume inter-planting
Quantity/ density: 0.25
Remarks: dibling betwen the structure

Manure / compost / residues
Material/ species: composite manures
Quantity/ density: 0.036
Remarks: mixed with soil in shallow furrow facing the grand daughter banana sucker

Aligned: -contour
Vegetative material: F : fruit trees / shrubs, O : other
Number of plants per (ha): 35

Aligned: -linear
Vegetative material: C : perennial crops
Number of plants per (ha): 714

Trees/ shrubs species: perennial fodder
Perennial crops species: banana
Other species: pinepples
Construction material (earth): excavated soils
Slope (which determines the spacing indicated above): 2%
Vegetation is used for stabilisation of structures.

4.3 Informations générales sur le calcul des intrants et des coûts

autre/ monnaie nationale (précisez):

TShs.

Indiquer le taux de change du dollars en monnaie locale (si pertinent): 1 USD= :

1700,0

4.4 Activités de mise en place/ d'établissement

	Activité	Type de mesures	Calendrier
1.	Ploughung	Végétale	once at the end of short rainfals
2.	Harrowing	Végétale	Mid of dry spel
3.	Spacing and demarcating holes	Végétale	mid of dry spel
4.	Digging holes	Végétale	mid of dry spel
5.	mixing farm yard manures	Végétale	mid of dry spel
6.	Planting banana suckers	Végétale	lat dry spale
7.	Sowing cajanus cajan	Végétale	on set of long rainfals
8.	Planting pinepples	Végétale	on sertof long rainfals
9.	To demarcate contour line	Structurel	the end of short rainfall
10.	To dig the furrow	Structurel	at the end of dry spel

4.5 Coûts et intrants nécessaires à la mise en place

	Spécifiez les intrants	Unité	Quantité	Coûts par unité	Coût total par intrant	% des coût supporté par les exploitants des terres
Main d'œuvre	labour	ha	1,0	1696,85	1696,85
Equipements	tools	ha	1,0	4,71	4,71	100,0
Matériel végétal	seedlings	ha	1,0	433,89	433,89
Coût total de mise en place de la Technologie					2135,45

Commentaires:

Duration of establishment phase: 12 month(s)

4.6 Activités d'entretien/ récurrentes

	Activité	Type de mesures	Calendrier/ fréquence
1.	weeding	Agronomique	Twice in the midle of rainfals
2.	Desuckering	Agronomique	Twice in the midle of rainfals
3.	Detrushing	Agronomique	Twice in the middle rainfals
4.	Mulching	Agronomique	once at the end of dry spel
5.	Banana weevils trapping	Agronomique	routenely
6.	manures appliacation	Agronomique	at the end od dry spel
7.	Sowing beans	Agronomique	once in the long rainfals
8.	To prune cajanus cajan	Végétale	routenly
9.	To remove soil sediment	Structurel	twice at the end of raifals

4.7 Coûts et intrants nécessaires aux activités d'entretien/ récurrentes (par an)

	Spécifiez les intrants	Unité	Quantité	Coûts par unité	Coût total par intrant	% des coût supporté par les exploitants des terres
Main d'œuvre	labour	ha	1,0	205,88	205,88	100,0
Coût total d'entretien de la Technologie					205,88

Commentaires:

The costs for agronomic measures calculated per 0.2 hectors the converted to per hectare. The costs for vegetative calculated per number of plants in 0.2 ha the converted per hectare and the costs for structural measures calculated per total length of structures foun in 0.2 ha then converted per hectare,

4.8 Facteurs les plus importants affectant les coûts

Décrivez les facteurs les plus importants affectant les coûts :

The most determinate factors are labour light indicating the technology to be labour intensive in nature.

5.1 Climat

5.2 Topographie

5.3 Sols

5.6 Caractéristiques des exploitants des terres appliquant la Technologie

Indiquez toute autre caractéristique pertinente des exploitants des terres:

Land users applying the Technology are mainly common / average land users
Population density: 200-500 persons/km2
Annual population growth: < 0.5%
Relative level of wealth: rich, average, poor
5% of the land users are rich and own 21% of the land.
64% of the land users are average wealthy and own 64% of the land.
21% of the land users are poor and own 5% of the land.
Off-farm income specification: Increased crop productivity from the use of technology has revealed excess crop produce for sale and sustain the house hold solely fro farm income.

5.7 Superficie moyenne des terres détenues ou louées par les exploitants appliquant la Technologie

5.8 Propriété foncière, droits d’utilisation des terres et de l'eau

Propriété foncière:

• individu, sans titre de propriété

Droits d’utilisation des terres:

• individuel

Droits d’utilisation de l’eau:

• accès libre (non organisé)

5.9 Accès aux services et aux infrastructures

6.1 Impacts sur site que la Technologie a montrés

Impacts socio-économiques

Production

Revenus et coûts

Impacts socioculturels

Impacts écologiques

Cycle de l'eau/ ruissellement

Sols

Biodiversité: végétale, animale

Réduction des risques de catastrophe et des risques climatiques

6.2 Impacts hors site que la Technologie a montrés

6.3 Exposition et sensibilité de la Technologie aux changements progressifs et aux évènements extrêmes/catastrophes liés au climat (telles que perçues par les exploitants des terres)

Changements climatiques progressifs

Changements climatiques progressifs

	Saison	Type de changements/ extrêmes climatiques	Comment la Technologie fait-elle face à cela?
températures annuelles		augmente	pas connu

Extrêmes climatiques (catastrophes)

Catastrophes météorologiques

	Comment la Technologie fait-elle face à cela?
pluie torrentielle locale	bien

Catastrophes climatiques

	Comment la Technologie fait-elle face à cela?
sécheresse	bien

Catastrophes hydrologiques

	Comment la Technologie fait-elle face à cela?
inondation générale (rivière)	pas bien

Commentaires:

The technology could be modified by introducing the water spillways in heavy rainfalls and collect the water in reservor to be used during the dry spells.

6.4 Analyse coûts-bénéfices

Quels sont les bénéfices comparativement aux coûts de mise en place (du point de vue des exploitants des terres)?

Quels sont les bénéfices comparativement aux coûts d'entretien récurrents (du point de vue des exploitants des terres)?

Commentaires:

The cumulative accrues for three years should cover the establishment costs and while for the long period there will be no further establishments.
The maintenance costs for the first three years is greater than the returns while in the long run the increased productivity should overdue the maintenance costs.

6.5 Adoption de la Technologie

Parmi tous ceux qui ont adopté la Technologie, combien d'entre eux l'ont fait spontanément, à savoir sans recevoir aucune incitation matérielle ou aucun paiement?

• 50-90%

Commentaires:

12% of land user families have adopted the Technology with external material support
25 land user families have adopted the Technology with external material support
Only 3 host farners out of 25 total group members were supplied of certified banana suckers and grass mulch.
88% of land user families have adopted the Technology without any external material support
25 land user families have adopted the Technology without any external material support
23 group members were adopted with modification the technology at there own full costs.
There is a little trend towards spontaneous adoption of the Technology. The adoption with modification is high, but these modification tends to diverge from the SaLM though productivity is attained.

6.7 Points forts/ avantages/ possibilités de la Technologie

Points forts/ avantages/ possibilités du point de vue du compilateur ou d'une autre personne ressource clé
Increased land productivity: The furrow has increased water infiltration and reduced blue water evaporation.Cajanus cajan has stabilised the soil on the riser while improving nutrient cycling. Certified banana suckers has reduced production failure. micro climate
Improved livelihood: Increased banana productivity form 4 tones per hectare to 9 tones per hectare should ensure food security as well as income.
Improved ecosystem: prevent, mitigate and rehabilitate degradation
The technology is easy to learn and apply.

6.8 Faiblesses/ inconvénients/ risques de la Technologie et moyens de les surmonter

Faiblesses/ inconvénients/ risques du point de vue du compilateur ou d'une autre personne ressource clé	Comment peuvent-ils être surmontés?
Increased labour constraints to dig and excavate the furrow.	Reduce out migration of labour.
Increased farm input costs to purchase certified banana suckers and cajanus cajan seeds.	Establish banana nursries at local levels.

7.1 Méthodes/ sources d'information