1.2 Detalles de contacto de las personas de referencia e instituciones involucradas en la evaluación y la documentación de la Tecnología

Nombre del proyecto que financió la documentación/ evaluación de la Tecnología (si fuera relevante)

Book project: where the land is greener - Case Studies and Analysis of Soil and Water Conservation Initiatives Worldwide (where the land is greener)

Nombre de la(s) institución(es) que facilitaron la documentación/ evaluación de la Tecnología (si fuera relevante)

IWMI International Water Management Institute (IWMI) - India

Nombre de la(s) institución(es) que facilitaron la documentación/ evaluación de la Tecnología (si fuera relevante)

International Development Enterprises - India (iDE-India) - Estados Unidos

1.3 Condiciones referidas al uso de datos documentados mediante WOCAT

¿Cuándo se compilaron los datos (en el campo)?

01/01/2005

El compilador y la/s persona(s) de referencia claves aceptan las condiciones acerca del uso de los datos documentados mediante WOCAT:

Sí

1.5 Referencia al (los) Cuestionario(s) de Enfoques MST

2.1 Breve descripción de la Tecnología

Definición de la Tecnología:

A grassroots innovation that offers most of the advantages of conventional micro-irrigation at a much lower establishment cost.

2.2 Descripción detallada de la Tecnología

Descripción:

The continued expansion of irrigation in India is causing increasing water shortages. This may be compounded by the potential effects of climate change. Drip irrigation - delivering small amounts of water directly to the plants through pipes - is a technology that could help farmers deal with water constraints. It is considerably more efficient in terms of water use than the usual open furrows or flood irrigation.
In West Nimar, Madhya Pradesh, droughts, diminishing groundwater, limited and erratic power supply coupled with poverty, compelled farmers to look for a technology that would enable them to irrigate their crops (mainly cotton) within these constraints. They tried out several cost-saving options such as using old bicycle tubes instead of the conventional drip irrigation pipes. But nothing caught on - until about five years ago - when a local farmer experimented with thin poly-tubing normally used for frozen fruit-flavoured ‘lollypops’ called pepsee. It spread to neighbouring cotton farmers, and its popularity has meant that today pepsee has become widespread in the region. Pepsee micro-irrigation systems slowly and regularly apply water directly to the root zone of plants through a network of economically designed plastic pipes and low-discharge emitters.
Technically speaking pepsee systems use low density polythene (65-130 microns) tubes which are locally assembled. Being a low pressure system the water source can be an overhead tank or a manually operated water pump to lift water from a shallow water table.
Such a system costs less than US$ 40 per hectare for establishment. But the tubes have a short life span of one (or two) year(s); an equivalent standard buried strip drip irrigation system amounts to between five and ten times the initial cost. The latter would, however, last for five to ten years. The critical factor is the low entry cost. Pepsee systems thus act as ‘stepping stones’ for poor farmers who are facing water stress but are short of capital and cannot afford to risk relatively large investment in a technology which is new to them, and whose returns are uncertain. The technology is today available in two variants: the original white pepsee and a recently introduced black pepsee which is of slightly better quality.
Recently, a more durable and standardised version of pepsee, given the brand name ‘Easy Drip’, has been developed and promoted by a local NGO, IDEI (see corresponding approach). Easy Drip is one product within a set of affordable micro-irrigation technologies (AMIT) promoted by IDEI.

2.3 Fotografías de la Tecnología

2.5 País/ región/ lugares donde la Tecnología fue aplicada y que se hallan comprendidos por esta evaluación

2.7 Introducción de la Tecnología

Especifique cómo se introdujo la Tecnología:

• mediante proyectos/ intervenciones externas

3.1 Propósito(s) principal(es) de la Tecnología MST

• mejorar la producción
• crear impacto económico benéfico

3.2 Tipo(s) actuales de uso de la tierra donde se aplica la Tecnología

Comentarios:

Major land use problems (compiler’s opinion): Acute groundwater stress associated with lowering of the groundwater table limits water for irrigation, coupled with poverty and reluctance to risk investing in relatively expensive- but efficient - drip irrigation systems.

3.3 Información adicional sobre el uso de tierras

Provisión de agua para la tierra donde se aplica la Tecnología:

• totalmente irrigada

Número de temporadas de cultivo por año:

• 2

Especifique:

Longest growing period in days: 150 Longest growing period from month to month: May - Oct Second longest growing period in days: 120 Second longest growing period from month to month: Nov - Mar

3.4 Grupo MST al que pertenece la Tecnología

• Manejo de irrigación: (incl. provisión de agua, invernaderos)

3.6 Medidas MST que componen la Tecnología

3.7 Principales tipos de degradación del suelo encarados con la Tecnología

Comentarios:

Main type of degradation addressed: Hq: decline of groundwater quality

Main causes of degradation: deforestation / removal of natural vegetation (incl. forest fires), other human induced causes (specify) (agricultural causes), education, access to knowledge and support services (lack of knowledge)

Secondary causes of degradation: over-exploitation of vegetation for domestic use, overgrazing, droughts, land tenure (land subdivision), Land alienation

3.8 Prevención, reducción o restauración de la degradación del suelo

Especifique la meta de la Tecnología con relación a la degradación de la tierra:

• reducir la degradación del suelo

4.1 Dibujo técnico de la Tecnología

4.2 Especificaciones técnicas/ explicaciones del dibujo técnico

Components of pepsee/‘Easy Drip’ irrigation systems are described below.
1) Water source: For pepsee, commonly a water pump (in most cases electric) is used to lift water from a well and directly feed the irrigation system.
Alternatively, an overhead tank (minimum of 1 m above ground level) can be used for smaller systems up to 400 m2 area.
2) Control valve: valve made of plastic or metal to regulate pressure and flow of water into the system
3) Filter: Strainer filter to ensure that clean water enters into the system (optional in pepsee systems).
4) Mainline: 50 mm PVC (Polyvinyl chloride) or PE (Polyethylene) pipe to convey water from source to the sub-main.
5) Sub-main: PVC/PE pipe to supply water to the lateral pipes which are connected to the sub-main at regular intervals.
6) Lateral: PE pipes along the rows of the crops on which emitters are connected directly. Pipe size is 12–16 mm.
7) Emitters/micro-tubes: Device through which water is emitted at the root zone of the plant with required discharge. In pepsee farmers simply make pin holes in the plastic tube for water to pass. Easy Drip has inbuilt drippers/outlets along the lateral line which give a continuous wetting strip.
It is mainly used for row crops.
Pepsee uses cheap, recycled plastic tubes instead of the rubber pipes used in conventional drip irrigation kits. Space between emitters is variable, for cotton cultivation it is commonly 1.2 m (between plants, within and between rows). There is (usually) one emitter for each plant. Different sizes of valves, mainlines, etc, are available, depending on flow rate of water in the system. Additional components are joints (connectors) and pegs (used to hold the lateral and micro-pipes in place).

Technical knowledge required for land users: moderate

Main technical functions: water supply, improved water-use efficiency (reduced loss, well directed, selective - and targeted irrigation

Secondary technical functions: improvement of ground cover, higher - germination and establishment rate

Structural measure: irrigation infrastructure

Construction material (other): poly-tubes - low density polythene (65-130 microns)

Change of land use practices / intensity level: from furrow to drip irrigation

4.4 Actividades de establecimiento

	Actividad	Tipo de medida	Momento
1.	Installation of water pump, control valve, filter (optional) and PVC piping(main/sub-main and lateral pipes).	Estructurales	dry season

4.5 Costos e insumos necesarios para el establecimiento

	Especifique insumo	Unidad	Cantidad	Costos por unidad	Costos totales por insumo	% de los costos cubiertos por los usuarios de las tierras
Mano de obra	Labour	ha	1,0	4,0	4,0	100,0
Material de construcción	Lateral piping (Pepsee tube)	ha	1,0	17,0	17,0	100,0
Material de construcción	Main/sub-main PVC piping	ha	1,0	34,0	34,0	100,0
Material de construcción	Other parts (valves, joints et	ha	1,0	40,0	40,0	100,0
Costos totales para establecer la Tecnología					95,0

Comentarios:

Duration of establishment phase: 1 month(s)

4.6 Actividades de establecimiento/ recurrentes

	Actividad	Tipo de medida	Momento/ frequencia
1.	Re-installation of lateral pepsee tubes	Estructurales	dry season/ (every 1–2 years).

4.7 Costos e insumos necesarios para actividades de mantenimiento/ recurrentes (por año)

	Especifique insumo	Unidad	Cantidad	Costos por unidad	Costos totales por insumo	% de los costos cubiertos por los usuarios de las tierras
Mano de obra	Labour	ha	1,0	4,0	4,0	100,0
Material de construcción	Lateral piping (Pepsee tube)	ha	1,0	17,0	17,0	100,0
Indique los costos totales para mantenecer la Tecnología					21,0

5.1 Clima

5.2 Topografía

5.3 Suelos

Si se halla disponible, adjunte una descripción completa de los suelos o especifique la información disponible, por ej., tipo de suelo, pH/ acidez de suelo, capacidad de intercambio catiónico, nitrógeno, salinidad, etc. :

Soil texture: Fine/heavy (black cotton soil; mostly vertisols, partly inceptisols and entisols)
Soil drainage/infiltration: Poor

5.6 Las características de los usuarios de la tierra que aplican la Tecnología

5.7 Área promedio de la tierra que pertenece a o es arrendada por usuarios de tierra que aplican la Tecnología

5.8 Tenencia de tierra, uso de tierra y derechos de uso de agua

Tenencia de tierra:

• individual, con título

Derechos de uso de tierra:

• individual

6.1 Impactos in situ demostrados por la Tecnología

Impactos socioeconómicos

Producción

Ingreso y costos

Otros impactos socioeconómicos

Impactos socioculturales

Impactos ecológicos

Otros impactos ecológicos

6.4 Análisis costo-beneficio

¿Cómo se comparan los beneficios con los costos de establecimiento (desde la perspectiva de los usuarios de tierra)?

¿Cómo se comparan los beneficios con los costos de mantenimiento/ recurrentes (desde la perspectiva de los usuarios de tierra)?

6.5 Adopción de la Tecnología

De todos quienes adoptaron la Tecnología, ¿cuántos lo hicieron espontáneamente, es decir, sin recibir incentivos/ pagos materiales?

• 90-100%

Comentarios:

100% of land user families have adopted the Technology without any external material support

There is a moderate trend towards spontaneous adoption of the Technology

Comments on adoption trend: No detailed information available regarding spread - though this is estimated to be several thousand farmers within West Nimar. All adoption has been spontaneous, without incentives, and the group which has adopted best comprises those who were previously using furrow irrigation. A large number of pepsee adopters are the resource poor farmers but rich farmers have also adopted pepsee.

6.7 Fuerzas/ ventajas/ oportunidades de la Tecnología

Fuerzas/ ventajas/ oportunidades desde la perspectiva del compilador o de otra persona de referencia clave
Low initial investment and recurrent costs: risk in adopting new system limited How can they be sustained / enhanced? Keep costs of new variations of pepsee low.
There are significant benefits in terms of reduced water use per unit of land, and in terms of yield per unit land area as well.
Few extra skills required to implement and operate the system.
An eventual shift to conventional drip system is feasible: pepsee acts as a ’stepping stone’ How can they be sustained / enhanced? Promote improved drip systems where pepsee has taken off.
Higher yields, better quality, higher germination rate, lower incidence of pest attack; facilitates pre-monsoon sowing.

6.8 Debilidades/ desventajas/ riesgos de la Tecnología y formas de sobreponerse a ellos

Debilidades/ desventajas/ riesgos desde la perspectiva del compilador o de otra persona de referencia clave	¿Cómo sobreponerse a ellas?
Pepsee is based on drip pipes which have a limited life: delicate and cannot withstand high pressure	Develop/use stronger piping materials such as ‘Easy Drip’.
The increased water use efficiency has allowed an expansion in the area irrigated – which has used up the water ‘saved’.	Develop/use stronger piping materials such as ‘Easy Drip’.
Pepsee systems require replacement of lateral pipes each year and thus incur recurrent input and labour costs

7.2 Vínculos a las publicaciones disponibles

Título, autor, año, ISBN:

Verma S, Tsephal S. and Jose T: Pepsee Systems: grassroots innovation under groundwater stress. Water Policy, 6,
pp. 303–318.. 2004.

Título, autor, año, ISBN:

http://www.iwaponline.com/wp/00604/wp006040303.htm