1.2 Detalhes do contato das pessoas capacitadas e instituições envolvidas na avaliação e documentação da tecnologia

Nome da(s) instituição(ões) que facilitou(ram) a documentação/ avaliação da Tecnologia (se relevante)

Bukoba district council (Bukoba district council) - República Unida da Tanzânia

1.3 Condições em relação ao uso da informação documentada através de WOCAT

Quando os dados foram compilados (no campo)?

26/05/2014

O/a compilador/a e a(s) pessoa(s) capacitada(s) aceitam as condições relativas ao uso de dados documentados através da WOCAT:

Sim

1.4 Declaração de sustentabilidade da tecnologia descrita

A tecnologia descrita aqui é problemática em relação a degradação da terra de forma que não pode ser declarada uma tecnologia de gestão sustentável de terra?

Não

2.1 Descrição curta da tecnologia

Definição da tecnologia:

Use of contour ridging cultivation, tiles, manure application and improved genetic material for sustainable cassava production in convex sloppy landforms.

2.2 Descrição detalhada da tecnologia

Descrição:

Contour ridges cultivation is a seasonal water conservation and erosion control land tilling practice aiming at improving production of cassava (Manihot esculenta), improving potential of the soil and environmental function of the land. The technology is among a list of basket of choices of SLM practices recently introduced and adapted to the area by land user working in collaboration with extension officers/SLM specialists under the auspicious support of the Tras-boundary Agro-ecosystem Management Project (Kagera TAMP).
Contour ridges are cultivated in rows across a convex slope landform of average slope category lying between 5-8%. The average height of a ridge is 0.45 -0.50m, with width lying between 0.4 -0.5m, and the distance between rows is 1 meter. To be stronger, contour ridges are tied with furrows (Tiles) dug along the slope intercepting the ridges almost perpendicular. Within a cassava block farm of average size 0.5 acres, the average length of a contour ridge is approximately 30 - 35m. Within tiles, pits are dug. The distance from one pit to another is usually 5 meters. Soils from dug pit are piled on the lower side of the slope to form a supportive bund which is stabilized and made productive by planting pineapples on it. The number of pineapples (suckers) planted on each pit bund is 3-4. Tiles provide diagonal strength to the ridges, trap runoff and allow water to infiltrate and be available to the plants. Manure application is done after contour ridging by incorporating or mixing manure with soil. Manure application at a rate of 12 tons per hectare is done before cassava planting.

Purpose of the Technology: The basic tenet of this technology is to turn a poorly managed land resource that is exposed to detrimental grazing, poor agricultural practices and uncontrolled fire burning into a managed, productive agricultural land that contribute to improved agriculture production, livelihood income and ecosystems (put the triple win solution into reality).
The rural food security and income are enhanced through soil erosion control, fertility improvement, beneficial harvesting of rainfall-runoff and use of improved cassava germ-plasm (with high resilience to climatic change and diseases and no use of chemicals).

Establishment / maintenance activities and inputs: The technology is largely agronomic dominated by seasonally repeatedly activities. The dominant recurrent activities are land preparation, contour ridging cultivation, tile digging (furrow digging, pit digging, bund making and pineapple planting), manure application, cassava planting, weeding and harvesting. The inputs needed are: tools (machete, sickles, hand holes), planting materials (cassava and pineapple), manure and labour.
The average costs per hectare of this technology is 1155.48 USD. Manure application is the most cost determinant factor and accounts for 50.89% of the total costs. Average production of cassava per hectare is 7,376.32 USD. In monetary terms the average benefit to cost ratio B/C is 6.38 exemplifying viability of the technology.

Natural / human environment: Naturally the environment encompasses cropland land use type , the technology is largely agronomic, climatic zone is sub humid with 210 length of growing period, slope category is foot slopes, the dominant soil textural class is loam with a medium soil depth. On human environment the defined level of mechanization is largely hand tools, production is mixed. land ownership is largely individual not titled and there is also communally owned land.

2.3 Fotos da tecnologia

2.5 País/região/locais onde a tecnologia foi aplicada e que estão cobertos nesta avaliação

2.6 Data da implementação

Caso o ano exato seja desconhecido, indique a data aproximada:

• menos de 10 anos atrás (recentemente)

2.7 Introdução da tecnologia

Especifique como a tecnologia foi introduzida:

• através de projetos/intervenções externas

Comentários (tipos de projeto, etc.):

Is one of the technology being promoted in Bukoba Rural District through Community integrated catchment ecosystem approach (SLM FFS approach) supported by the Kagera Trans boundary Argo-ecosystem management project (Kagera TAMP).

3.1 Principal/principais finalidade(s) da tecnologia

• Melhora a produção
• Reduz, previne, recupera a degradação do solo
• Criar impacto econômico benéfico

3.2 Tipo(s) atualizado(s) de uso da terra onde a tecnologia foi aplicada

Comentários:

Major land use problems (compiler’s opinion): Soil erosion caused by rainfall runoff, soil infertility, poor soil moisture and poor cassava husbandry practices that contribute to low productivity.
Major land use problems (land users’ perception): Poor unproductive soil and cassava diseases.

3.3 Mais informações sobre o uso da terra

Número de estações de cultivo por ano:

• 2

Especifique:

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 Grupo de GST ao qual pertence a tecnologia

• Gestão integrada de fertilidade do solo
• variedades vegetal/raças de animais melhoradas

3.5 Difusão da tecnologia

Especifique a difusão da tecnologia:

• Uniformemente difundida numa área

Caso a tecnologia seja uniformemente difundida numa área, indique a área coberta aproximada:

• < 0,1 km2 (10 ha)

Comentários:

The area considered is a portion of area exposed to degradation and under SLM Farmer Field School training.

3.6 Medidas de GST contendo a tecnologia

Comentários:

Type of agronomic measures: contour planting / strip cropping, manure / compost / residues, contour ridging, furrows (drainage, irrigation), pits

3.7 Principais tipos de degradação da terra abordados pela tecnologia

Comentários:

Main causes of degradation: soil management (Ignorance in fertility, nutrients and moisture improvement methods, contuor ridge ploughing along the slope), crop management (annual, perennial, tree/shrub) (Poor crop husnbandry practices (use of cassava varieties prone cassava mildew, use of incorrect crop stand)), population pressure (Continuous use of the land), poverty / wealth (Incapacity to invest effectively in sustainable land managment), governance / institutional (Poor bylaw and law reinforcement especially in disease control)

Secondary causes of degradation: deforestation / removal of natural vegetation (incl. forest fires) (Uncontrolled fire burning, poor agricultural methods (biasness to land expansion rather than intensification)), change in temperature (Due to climatic change and variability), change of seasonal rainfall (Due to climatic change and variability), Heavy / extreme rainfall (intensity/amounts) (Due to climatic change and variability), droughts (Due to climatic change and variability)

3.8 Redução, prevenção ou recuperação da degradação do solo

Especifique o objetivo da tecnologia em relação a degradação da terra:

• Prevenir degradação do solo
• Reduzir a degradação do solo

4.2 Especificações técnicas/ explicações do desenho técnico

Technical knowledge required for field staff / advisors: low (Skills and knowledge on contour ridging cultivation, use of tiles and manuring can easily be acquired by field staff and spread to farmers.)
Technical knowledge required for land users: moderate (Skills and knowledge on contour ridging cultivation, use of tiles and manuring are simple and can easily be learn and adopted by farmers through FFS training.)

Main technical functions: control of dispersed runoff: impede / retard, control of concentrated runoff: retain / trap, increase in nutrient availability (supply, recycling,…), increase of infiltration, increase / maintain water stored in soil

Contour planting / strip cropping
Material/ species: Cassava cuttings
Quantity/ density: 10000/ha
Remarks: crop stand per hactere (spacing 1mx1m)

Agronomic measure: tile pit stabilization
Material/ species: Pineapples planted to stabilize pits
Quantity/ density: 180
Remarks: pineapples sucker in one ha

Manure / compost / residues
Material/ species: Cow dung (tonnes)
Quantity/ density: 35 t/ha
Remarks: Spread along farm

Contour ridging
Material/ species: Cultivated ridges across the slope
Quantity/ density: 24 r/ha
Remarks: Space between rows is 1m

Furrows (drainage, irrigation)
Material/ species: Tiles dug along the slope
Quantity/ density: 6 tiles/ha
Remarks: Space between tiles is 8m

Pits
Material/ species: Water collection pits dug within furrow/tile
Quantity/ density: 12pits/ha
Remarks: 2 pits/tile. each tile stabilized by 3-4 pinneapples

4.3 Informação geral em relação ao cálculo de entradas e custos

Outro/moeda nacional (especifique):

Tanzanian shillings

Indique a taxa cambial do dólar norte americano para a moeda local (se relevante): 1 USD =:

1700,0

4.4 Atividades de implantação

	Atividade	Tipo de medida	Periodicidade
1.	tools	Gestão

4.5 Custos e entradas necessárias para a implantação

	Especifique a entrada	Unidade	Quantidade	Custos por unidade	Custos totais por entrada	% dos custos arcados pelos usuários da terra
Equipamento	Tools	pieces	36,0	2,9167	105,0	100,0
Material vegetal	cassava cuttings		1,0
Fertilizantes e biocidas	compost/manure		1,0
Custos totais para a implantação da tecnologia					105,0

Comentários:

Duration of establishment phase: 1 month(s)
Lifespan of the tools: 5 years

4.6 Atividades recorrentes/manutenção

	Atividade	Tipo de medida	Periodicidade/frequência
1.	Land preparation (clearing and ploughing)	Agronômico	November
2.	Contour ridging cultivation combined with tiles.	Agronômico	December
3.	Manure application	Agronômico	December
4.	Procurement of improved cassava varieties (Mkombozi) and pineapple suckers.	Agronômico	December
5.	Planting cassava and pineapple	Agronômico	December
6.	Weeding	Agronômico	February and September
7.	Harvesting	Agronômico	Once annualy

4.7 Custos e entradas necessárias pata a manutenção/atividades recorrentes (por ano)

	Especifique a entrada	Unidade	Quantidade	Custos por unidade	Custos totais por entrada	% dos custos arcados pelos usuários da terra
Mão-de-obra	Land preparation	person/days	45,0	1,17777	53,0	100,0
Mão-de-obra	Contour ridging cultivation combined with tiles.	person/days	60,0	1,46666	88,0	100,0
Mão-de-obra	Manure application	person/days	30,0	1,46666	44,0	100,0
Mão-de-obra	Planting cassava and pineapple	person/days	13,0	1,154	15,0	100,0
Equipamento	Tools		1,0			100,0
Material vegetal	cassava cuttings	pieces	10000,0	0,017648	176,48
Material vegetal	pineapple suckers	pieces	180,0	0,28888888	52,0
Fertilizantes e biocidas	Compost/manure	Tons	12,0	49,0	588,0
Outros	Labour: Weeding	person/days	26,0	0,577	15,0	100,0
Outros	Labour: Harvesting	person/days	26,0	0,7307	19,0	100,0
Custos totais para a manutenção da tecnologia					1050,48

Comentários:

Machinery/ tools: machete, hand hoe (flat and fork) and sickles.
Labour, tools, manure and planting materials per hectare of land subjected to technology/under cassava production.

4.8 Fatores mais importantes que afetam os custos

Descreva os fatores mais determinantes que afetam os custos:

Manuring is the most determinant factor affecting the costs.

5.1 Clima

5.2 Topografia

Indique se a tecnologia é aplicada especificamente em:

• Posições convexas

Comentários e outras especificações sobre a topografia:

Slopes on average: Moderate (Convex foot slope of average slope category of 5-8%)

5.3 Solos

Caso disponível anexe a descrição completa do solo ou especifique as informações disponíveis, p. ex. tipo de solo, PH/acidez do solo, nitrogênio, capacidade de troca catiônica, salinidade, etc.

Soil depth on average: Moderately deep (moderate deep loam soil)
Soil fertility: Low
Soil drainage/infiltration: Medium
Soil water storage capacity: Medium

5.4 Disponibilidade e qualidade de água

5.6 Características dos usuários da terra que utilizam a tecnologia

Indique outras características relevantes dos usuários da terra:

4% of the land users are rich and own 32% of the land.
32% of the land users are average wealthy and own 64% of the land.
64% of the land users are poor and own 4% of the land.

Off-farm income specification: Most run local bar

5.7 Média da área de terra própria ou arrendada por usuários da terra que utilizam a tecnologia

5.8 Propriedade de terra, direitos de uso da terra e de uso da água

Propriedade da terra:

• Indivíduo, não intitulado

Comentários:

Land is acquired through inheritance or purchase from farmers owning the land.

5.9 Acesso a serviços e infraestrutura

6.1 Impactos no local mostrados pela tecnologia

Impactos socioeconômicos

Produção

Renda e custos

Impactos socioculturais

Impactos ecológicos

Ciclo hídrico/escoamento

Solo

Biodiversidade: vegetação, animais

Clima e redução de riscos de desastre

6.3 Exposição e sensibilidade da tecnologia às mudanças climáticas graduais e extremos/desastres relacionados ao clima (conforme o ponto de vista dos usuários da terra)

Mudança climática gradual

Mudança climática gradual

	Estação do ano	Tipo de mudança climática/extremo	Como a tecnologia lida com isso?
Temperatura anual		aumento	não bem

Extremos (desastres) relacionados ao clima

Desastres meteorológicos

	Como a tecnologia lida com isso?
Temporal local	não bem
Tempestade de vento local	não conhecido

Desastres climatológicos

	Como a tecnologia lida com isso?
Seca	não bem

Desastres hidrológicos

	Como a tecnologia lida com isso?
Inundação geral (rio)	não conhecido

Outras consequências relacionadas ao clima

Outras consequências relacionadas ao clima

	Como a tecnologia lida com isso?
Período de crescimento reduzido	não bem

Comentários:

Contour ridging cultivation strengthened with Tiles or furrow dug along the slope intercepting ridges almost perpendicular. Each tile has 2 pits dug at an average distance of 5meters. The dug pits have supportive bunds on the lower side of the slope and the bunds is stabilized by planting pineapples. Tiles improve tolerance of ridge to seasonal rainfall decrease.

6.4 Análise do custo-benefício

Como os benefícios se comparam aos custos de implantação (do ponto de vista dos usuários da terra)?

Como os benefícios se comparam aos custos recorrentes/de manutenção(do ponto de vista dos usuários da terra)?

Comentários:

The quality of cassava has improved and there is an increase in productivity. In general rewards are realized within a short term i.e. benefit accrued from cassava surpass the initial investment costs.

6.5 Adoção da tecnologia

Se disponível, determine a quantidade (número de unidades familiares e/ou área abordada):

50 households and 10% of the area covered

Entre todos aqueles que adotaram a tecnologia, quantos adotaram espontaneamente, ou seja, sem receber nenhum incentivo material/pagamentos?

• 10-50%

Comentários:

25 land user families have adopted the Technology with external material support
Comments on acceptance with external material support: 80% of farmers accepted the technology through material support.
25% 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
Comments on spontaneous adoption: As the technology was introduced recently percentage adoption through own investment is low but farmers are impressed by benefit accrued from the technology and there is expectation that in the long run voluntary adoption is to be observed.

There is a little trend towards spontaneous adoption of the Technology
Comments on adoption trend: There is a vivid evidence of technology adoption and in the near future significant technology adoption is expected to be realized.

6.7 Pontos fortes/vantagens/oportunidades da tecnologia

Pontos fortes/vantagens/oportunidades na visão do usuário da terra
Group strength and cohesiveness.

Pontos fortes/vantagens/oportunidades na visão do/a compilador/a ou de outra pessoa capacitada
The technology contributes to soil erosion control, improved soil fertility and improved soil moisture.
There is increase in cassava productivity and income accrued from sell of cassava.
The technology promote diversification of income sources (cassava and pineapples)
Poorly managed land is changed into well managed and beneficial productive agricultural land.
Increased farmers commitment to mitigate land degradation

6.8 Pontos fracos, desvantagens/riscos da tecnologia e formas de superá-los

Pontos fracos/desvantagens/riscos na visão do usuário da terra	Como eles podem ser superados?
High expectation due to promissory at the project beginning	Stick and give emphasis to project objectives.
Slow and weak response of some farmers (group dynamics)	Enhance access to quality extension services.
Material support ideology	Change mindset of farmer from material incentive to self mobilization
Community ignorance in land protective bylaws	Awareness creation of farmers to laws and act guiding environmental conservation and reinforce use of bylaws.
Never attended any study tours	Introduce look and learn tour for farmers to see and learn best practices.

Pontos fracos/vantagens/riscos na visão do/a compilador/a ou de outra pessoa capacitada	Como eles podem ser superados?
High initial investment capital (manure is the most cost determinant factor)	Establishment of rural micro finance institutions and formation of inter group farmer associations and networks.
Post harvest losses, farmer ignorance in Cassava value addition technologies and tendencies to sell cassava at farm gate dilutes maximum profit realization.	Support to post harvest technology and value addition technologies for maximum realization of profit.
Shortage of improved planting materials (germ plasma)	Liaise with research station for adequate multiplication and distribution of improved planting materials.

7.1 Métodos/fontes de informação