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

Nome do projeto que facilitou a documentação/avaliação da Tecnologia (se relevante)

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

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

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

1.5 Referência ao(s) questionário(s) sobre abordagens GST (documentado(s) usando WOCAT)

Peer to Peer Pass-on Approach with Women [Bangladesh]

Terre des hommes and Greendots introduced the Peer to Peer pass-on system to enable women's groups in Bangladesh to spread the Keyhole Garden technique within their communities with the aim of enabling year-round homestead vegetable production despite the risk of flooding and tidal surge.

• Compilador/a: John Brogan
• 30/11/2016 17:38

2.1 Descrição curta da tecnologia

Definição da tecnologia:

The Keyhole Garden model of homestead vegetable cultivation enhances the resilience of families living in areas with climate-related hazards, such as flooding and drought. Keyhole gardens have been shown to increase vegetable production in all seasons, thereby improving household food autonomy and dietary diversity.

2.2 Descrição detalhada da tecnologia

Descrição:

First initiated in Ugandan communities by Send a Cow UK, the keyhole garden technique is widespread in Africa. In 2011, Terre des hommes (Tdh) and Greendots piloted Keyhole Gardens for the first time in Asia, effectively adapting the design and methodology in Africa to the conditions of flood prone areas of Bangladesh, and eventually India. The garden is a good way to enhance dietary diversity, especially for poor/landless families.

Keyhole gardens consist of a raised circular garden made of clay, shaped like a horseshoe or keyhole, with a maximum diameter of approximately three meters. For flood prone areas in Bangladesh and India, the plinth height depends on the location and is typically the same as the house plinth to resist flooding. A compost basket is built at the center of the garden. Organic matter (kitchen cuttings) and residual water are added on a regular basis through the compost pit. In some countries, bricks or stones are used to make the plinth.

The keyhole garden is a typical Low External Input Sustainable Agriculture (LEISA) approach that includes integrated composting, water retention, use of local materials, natural pest and disease control techniques, natural soil fertility measures, and proximity to the kitchen for both harvesting and care of the garden. In regions with mild conditions of flooding, tidal surge and drought, the garden increases the duration of gardening period during the year thus reducing the risk of disaster. In the aftermath of cyclone Mahasen, keyhole gardens demonstrated DRR utility: although many were partially damaged, none had to be rebuilt entirely. Where plants did not survive the storm, users were able to sow seeds immediately. On the other hand, the traditional ground-level plots used for pit and heap gardening were completely flooded / waterlogged and unusable.

Benefits of the technology include: compact size, proximity to the household for convenient maintenance and harvesting, composting of kitchen cuttings in the basket; and an ergonomic structure (raised, accessible). The small size is also ideal to facilitate training on vegetable growing, soil fertility and pest & disease management to first-time gardeners and students in schools. Keyhole gardens are highly productive—in Lesotho a typical garden can satisfy vegetable needs for a family of eight persons (FAO, 2008). Combined, these factors are scalable as an appropriate technology for landless and marginal farmers. In Bangladesh, the gardens enabled families to produce vegetables even during the monsoon period. As the keyhole garden normally does not need to be rebuilt every year it is a more efficient technique in the long-term than traditional methods such as pit and heap.

Users say that their garden produce tends to be larger and tastier than conventional gardens or market produce; and many indicated that they were able to meet their own vegetable consumption needs and to sell surplus or gift vegetables. For some women it was difficult to access sufficient amounts of soil, which meant that they needed to walk long distances to build the plinth. (Fortunately many received support from other villagers.) Secondly, during the monsoon, while most of the land is flooded, the keyhole garden remains dry. Consequently, it may provide shelter to certain animals (e.g. rats) and attract higher number of pests. Regardless of these two limitations users agree that the benefits greatly
outweigh any observed limitations.

2.3 Fotos da tecnologia

2.4 Vídeos da tecnologia

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

País:

Bangladesh

Região/Estado/Província:

Kurigram District / Rajshahi and Barguna District / Barisal

Especificação adicional de localização:

Kurigram municipality (Kurigram), Patharghata Union (Barguna)

Especifique a difusão da tecnologia:

• Aplicado em pontos específicos/concentrado numa pequena área

Comentários:

Kurigram and Pataharghata, Bangladesh
Applied in homesteads.

Map

×

2.6 Data da implementação

Indique o ano de implementação:

2012

2.7 Introdução da tecnologia

Especifique como a tecnologia foi introduzida:

• atráves de inovação dos usuários da terra
• durante experiências/ pesquisa
• através de projetos/intervenções externas

3.1 Principal/principais finalidade(s) da tecnologia

• Melhora a produção
• Reduzir riscos de desastre
• Adaptar a mudanças climáticas/extremos e seus impactos
• Atenuar a mudanças climáticas e seus impactos

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

Terra de cultivo

• Cultura anual
• Cultura perene (não lenhosa)

• Homestead Gardening

Cultivo anual - Especificar culturas:

• cereais - quinoa ou amaranto
• Legumes e leguminosas - feijão
• vegetais - vegetais de folhas (saladas, couve, espinafre, outros)
• legumes - melão, abóbora ou aboborinha
• legumes - outros
• legumes - raízes (cenouras, cebolas, beterraba, outros)

• tomatoes, cauliflower, brocoli, watercress, eggplant, cucumber

Cultivo perene (sem lã) - Especificar culturas:

• plantas medicinais, aromáticas, agrotóxicas - perenes

• chili

Número de estações de cultivo por ano:

• 3

Especifique:

In Bangladesh the gardens produced in all seasons, with most challenges coming in the dry season due to soil salinity in some areas.

O cultivo entre culturas é praticado?

Sim

O rodízio de culturas é praticado?

Sim

Caso afirmativo, especifique:

Winter/Summer seasons

Comentários:

Winter Season: red amaranth, spinach, green chilli, tomato, eggplant, carrot, radish, onion, garlic, country bean, pumpkin, cabbage, cauliflower, broccoli.
Summer & Rainy Seasons: red amaranth, green amaranth, Indian spinach, Chinese watercress, green chili, okra, eggplant, yard long bean, bitter gourd, ash gourd, cucumber, pumpkin

3.3 O uso do solo mudou devido à implementação da Tecnologia?

Vias navegáveis, corpo d'água, zonas úmidas

3.4 Abastecimento de água

Abastecimento de água para a terra na qual a tecnologia é aplicada:

• Misto de precipitação natural-irrigado

3.5 Grupo de GST ao qual pertence a tecnologia

• Gestão integrada de fertilidade do solo
• Gestão integrada de pragas e doenças (inclusive agricultura orgânica)
• Hortas familiares

3.6 Medidas de GST contendo a tecnologia

Medidas agronômicas

• A1: cobertura vegetal/do solo
• A2: Matéria orgânica/fertilidade do solo

Medidas estruturais

• S11: Outros

3.7 Principais tipos de degradação da terra abordados pela tecnologia

Erosão do solo pela água

• Wt: Perda do solo superficial/erosão de superfície

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

Comentários:

See details in section 2.2

4.1 Desenho técnico da tecnologia

Especificações técnicas (relacionada ao desenho técnico):

Gardens should be built in close vicinity to the beneficiary’s house, because gardens that are easily accessible and clearly visible are visited more regularly and maintained better.

The design is highly adaptable to local conditions and availability of free construction materials. The radius of the garden is 150CM and the delineated radius of the circular compost basket (in the center of the garden) is 45cm. The diagrams show (1) the location is near to house as an entry point for maintaining the garden; (2) the plinth is built to the same level of the house and a step is included where the plinth is high; (3) mulching to conserve the moisture; (4) interplanting a diversity of vegetables for both good vegetable health and good family nutrition; (5) using interplanted natural repellent plants as pest control for vegetables; (6) covering the basket during times of high sun intensity or heavy rain; (7) using liquid manures and plant teas as top dressing fertilisers.

Establishing what is the best height for your plinth very much depends on the local climatological conditions. In Bangladesh, the plinth is built from subsurface clayey soil, typically 2-3 feet in height - dependent on the location and level of seasonal flooding. The house plinth is a good gauge for how high to build the garden plinth. If the plinth is built too high, the roots of the plant will not be able to access sufficient water; and if built too low the next flood during the monsoon season may destroy the garden. Depending on dryness or soil/groundwater salinity, daily maintenance usually includes irrigating the soil. The outer rim of the plinth is protected with mud (and plastic or cloth) or stones. On top of the plinth is a mixture of soil and compost/manure (ratio 2:1) sloped up to the basket at a 30 - 40 degree angle. The central compost basket is filled with layers of fresh and dried vegetable matter, manure and ash to ensure that the soil fertility of the garden.

Women devised a number of different solutions to protecting the wall of the plinth and garden: Plastic bags, a combination of rice sacks (around the plinth edge) and plastic entrance way because of wear and tear (rice sacks erode faster), palm matting and old cloth. Some women put extra manure in the plinth walls to protect against flooding.

Sam Rich (www.fourthway.co.uk) has produced other technical drawings in addition to "How to Make Liquid Manure" such as: "How to make a Natural Pesticide" and "How to Make Plant Tea". There is also a version of the "How to Make a Keyhole Garden" in English from the experience in Africa.

Autor:

Sam Rich: www.fourthway.co.uk

Data:

13/05/2012

Autor:

Sam Rich: www.fourthway.co.uk

Data:

13/05/2012

Autor:

BBC Media Action Bangladesh

Data:

09/06/2014

4.2 Informação geral em relação ao cálculo de entradas e custos

Especifique como custos e entradas foram calculados:

• Por unidade de tecnologia

Especifique a moeda utilizada para os cálculos de custo:

• USD

4.3 Atividades de implantação

4.4 Custos e entradas necessárias para a implantação

Comentários:

Firstly, building the garden requires an initial investment in terms of labour and (locally available) inputs, such as soil and wood and clayey soil for the plinth (stones and bricks are frequently used for the plinth in Africa). These inputs are available on the homestead or in the community and generally free of cost. In rare cases families paid to have soil carted to their homestead, thus increasing the initial structural costs.

4.5 Atividades recorrentes/manutenção

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

Comentários:

In Bangladesh, women referred to the time spent working on the keyhole garden as “leisure time” and that they do this work after they have completed their domestic chores. Women estimated 45 minutes daily of such activity to maintain the garden. Calling it "leisure time" is misleading, but it suggests that most women generally enjoy working in the garden and do not regard it as heavy labour. The daily wage of an agricultural labourer differs per region. In Tdh's project area, wages are relatively low, especially for women. While male labourers may earn 200 BDT ($2.50) per day, women usually earn only 90 to 150 BDT. For the calculation, we applied the principle of equal pay for equal work, taking 200BDT per day.

4.7 Fatores mais importantes que afetam os custos

Descreva os fatores mais determinantes que afetam os custos:

Over the last few years, people in disaster-affecteed areas of Bangladesh have become familiar to receiving during humanitarian distributions; and expect “hand-outs” if they were to participate in a development project. The Keyhole garden project, however, follows the LEISA approach and does not rely on giving free inputs to the participants. (In a few cases where the local population was lacking seeds and experience in seed production, women's groups were given seeds and training.) A lack of reliance on external inputs or subsidies contributes to the sustainability of the project. The inputs (clay, manure, sticks, rocks, etc.) are locally available and usually do not require additional expenses. This may not be the case in all contexts.

5.1 Clima

5.2 Topografia

Indique se a tecnologia é aplicada especificamente em:

• Não relevante

5.3 Solos

5.4 Disponibilidade e qualidade de água

A salinidade da água é um problema?

Sim

Especifique:

In project sites along the Bay of Bengal

Ocorre inundação da área?

Sim

Regularidade:

Frequentemente

5.5 Biodiversidade

5.6 Características dos usuários da terra que utilizam a tecnologia

Indique outras características relevantes dos usuários da terra:

Using a methodology called the problem tree analysis it is understood that the people living in the two working areas regularly experience health-related problems, economic challenges, and agricultural difficulties.

5.7 Área média de terrenos utilizados pelos usuários de terrenos que aplicam a Tecnologia

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

Propriedade da terra:

• Indivíduo, não intitulado

Direitos do uso da terra:

• Indivíduo

Direitos do uso da água:

• Acesso livre (não organizado)

5.9 Acesso a serviços e infraestrutura

6.1 Impactos no local mostrados pela tecnologia

Impactos socioeconômicos

Produção

Impactos socioculturais

Impactos ecológicos

Solo

Clima e redução de riscos de desastre

Outros impactos ecológicos

6.2 Impactos externos mostrados pela tecnologia

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)

Extremos (desastres) relacionados ao clima

Desastres meteorológicos

Desastres hidrológicos

Outras consequências relacionadas ao clima

Outras consequências relacionadas ao clima

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:

No long term study available.
In most cases no (or very low) investment cost in materials and a low investment cost in labor was necessary. Thus the establishment and maintenance costs are relatively low compared to the benefit of increased homestead vegetable production and access to produce for increasing dietary diversity. The benefit increases when the technology supports resilience to flooding as was the case from flooding (Kurigram), and partially from a cyclone (Patharghata).

6.5 Adoção da tecnologia

• > 50%

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

333 from the pilot study. Subsequent projects by Tdh from 2013-2015 have seen over 3'500 keyhole gardens created in Bangladesh and India.

De todos aqueles que adotaram a Tecnologia, quantos o fizeram espontaneamente, ou seja, sem receber nenhum incentivo/ pagamento material?

• 91-100%

Comentários:

All of the adopters did so with training but without inputs. Spontaneous adoption of the Keyhole Garden without training is not easy to measure, but Tdh's experience shows a conservative average of 11% (38 of 333 gardens).

6.6 Adaptação

A tecnologia foi recentemente modificada para adaptar-se as condições variáveis?

Sim

Caso afirmativo, indique as condições variáveis as quais ela foi adaptada:

• Mudança climática/extremo

Especifique a adaptação da tecnologia (desenho, material/espécie, etc):

The technology was adapted from semi-arid zones in Africa (where soil amelioration and water conservation were priorities and materials such as stones and brick are available) to areas of South Asia prone to flood and tidal surge.

6.7 Pontos fortes/vantagens/oportunidades da tecnologia

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

7.1 Métodos/fontes de informação

7.2 Referências às publicações disponíveis

Título, autor, ano, ISBN:

"Keyhole Gardens: Improved Access to Homestead Vegetables and Dietary Diversification- External Evaluation and Capitalization of the Keyhole Garden Project in Bangladesh", Van Hout, R., 2013

Disponível de onde? Custos?

Freely available: Terre des hommes Lausanne Asia Desk: info@tdh.ch

Título, autor, ano, ISBN:

“Keyhole Gardens – great potential for improving homestead crop diversity and mother & child nutrition”, Taylor S, 2013, Discussion paper for the Agrobiodiversity Conference, Dhaka, 28 January 2013

Disponível de onde? Custos?

Freely available: Terre des hommes Lausanne Asia Desk: info@tdh.ch

Título, autor, ano, ISBN:

"Keyhole Gardens in Lesotho", FAO Nutrition and Consumer Protection Divis"ion (AGN), 2008 (with Send a Cow UK)

Disponível de onde? Custos?

http://www.fao.org/ag/agn/nutrition/docs/FSNL%20Fact%20sheet_Keyhole%20gardens.pdf

7.3 Links para informações on-line relevantes

Título/ descrição:

Greendots - Terre des hommes technical partner for Keyhole Gardens in South Asia

URL:

www.greendots.ch

Título/ descrição:

Send a Cow UK: How to make an African style raised bed (YouTube, ex. Uganda)

URL:

https://www.youtube.com/watch?v=ykCXfjzfaco

Título/ descrição:

Send a Cow UK - Keyhole Garden resources (Learning from Africa: How to make a Keyhole Garden)

URL:

http://www.sendacow.org.uk/lessonsfromafrica/resources/keyhole-gardens

Título/ descrição:

Fourthway's posters online: Smallholder organic agriculture (Uganda, including Keyhole gardens)

URL:

http://www.fourthway.co.uk/posters/

Título/ descrição:

Fourthway's posters online: Smallholder organic agriculture (Bangladesh, including Keyhole gardens)

URL:

http://www.fourthway.co.uk/bangladesh/index.html

Título/ descrição:

Terre des hommes: First Keyhole Garden in Asia (to resist storm surge/floods in Bangladesh)

URL:

https://vimeo.com/44043929