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

1.3 Condiciones referidas al uso de datos documentados mediante WOCAT

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

Sí

1.4 Declaración de la sostenibilidad de la Tecnología descrita

¿La Tecnología aquí descrita resulta problemática en relación a la degradación de la tierra, de tal forma que no puede considerársela una tecnología sostenible para el manejo de la tierra?

No

2.1 Breve descripción de la Tecnología

Definición de la Tecnología:

Stylo grass (Stylosanthes guianensis) is grown under and between mango trees to be used as fodder for cattle.

2.2 Descripción detallada de la Tecnología

Descripción:

Stylo grass (Stylosanthes guianensis, CV. Stylo 184) is a leguminous shrub which is used in pastures and as fodder crop. It is drought tolerant and can be harvested during the whole year, though it grows only when sufficient water is available. Mangos (Mangifera indica) are grown mainly from seeds in the area, either as single trees in home gardens or as orchards. The farmer of this case study has a mango orchard of 0.6 ha with trees spaced 6 by 8 meters, and grows stylo grass as a cover crop under and between the trees. Each day a patch of stylo grass is harvested by hand, and around 40 kg of this fodder is fed to the cattle together with rice straw. This allows the farmer to keep more cattle than before, 11 heads instead of 5. The mangos are mainly sold on the market, and some are dried. This agroforestry system reduces erosion by wind and water, as the soil is covered the whole year and the trees slow down the wind. The cattle can be kept near the house, which is good for making compost and biogas.

In 2004, the farmer cleared a forest and planted mango seedling. Between the mangos, he grew pumpkins, watermelons and cucumbers, but even though he used compost the soil fertility deteriorated fast and the cucurbits did not produce anymore. A local NGO, LAREC (Local Agricultural Research and Extension Centre), was looking for farmers with enough cattle and land in the area to try stylo grass, which was unknown in the area. The farmer, first reluctant because his other crops were not producing, started to plant stylo grass seeds he got from the NGO in July 2013 (information for this documentation was collected one year after the start).To do so, he plouwed and harrowed the fields with the hand tractor, and broadcasted the seeds by hand. After the first 3 months, during which he needed to weed, he started harvesting the fodder, and he cut 40 kg a day, one patch after another, 20 cm from the soil. This allows the reproduction of this cover crop.
The land user wants to expand his stylo grass to his other mango orchard, and is collecting seeds for this. Other farmers in the area are also interested in this technology; and the land user of this case-study starts to sell them stylo grass seeds but does not produce enough for all yet.

The analysed area is mostly flat (slope < 2%), tropic (dry and wet season), and the soils are mostly sandy or loamy. The soils contain little organic matter (low soil fertility, acidification, small amount of cattle, area has been deforested) and the groundwater table is rather high (3 m below soil level during the dry season, on the surface during the wet season).
Due to climate change, the rainfalls are more erratic, temperatures rise and droughts are more recurrent. Rice is the predominant crop grown in the area, since it serves as staple food (mix subsistence and commercial activities). Rice is often grown in monocultures and harvested once a year. Once the rice is harvested (dry season), some farmer release cattle to the paddy fields to eat the straw and weeds.

As an addition to rice, most land users grow vegetable and fruits in small home gardens (subsistence) and complement their income by producing handicrafts or through off farm income / remittances from family members working in other places. The increasing migration rate (the young generation leaves the villages to work in the cities, garment industry or abroad) results in a decrease of available labour force in the area which has detrimental effects on the agricultural activities. Furthermore, the civil war in the 1970s (Khmer Rouge) led to the loss of agricultural knowledge which different NGOs try to re-establish.

2.3 Fotografías de la Tecnología

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

2.6 Fecha de la implementación

Si no se conoce el año preciso, indique la fecha aproximada:

• hace menos de 10 años (recientemente)

2.7 Introducción de la Tecnología

Especifique cómo se introdujo la Tecnología:

• mediante proyectos/ intervenciones externas

Comentarios (tipo de proyecto, etc.):

It started in July 2013 when SOFDEC gave stylo grass seeds to farmers with enough cattle and land

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

• mejorar la producción
• reducir, prevenir, restaurar la degradación del suelo

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

Mezcla de tipos de uso de tierras dentro de la misma unidad de tierras: :

Sí

Especifique el uso combinado de tierras (cultivos/ pastoreo/ árboles):

• Agroforestería

Comentarios:

Major land use problems (compiler’s opinion): Lack of organic matter, lack of water retention in soil, irregularity of rainfall, low soil fertility (sandy soil), monocultures, bare soil during dry season.
Major land use problems (land users’ perception): Low soil fertility, lack of water, soil erosion by water on the slope.

3.3 ¿Cambió el uso de tierras debido a la implementación de la Tecnología?

¿Cambió el uso de tierras debido a la implementación de la Tecnología?

• Sí (Por favor responda las preguntas de abajo referidas al uso de la tierra antes de implementar la Tecnología)

3.4 Provisión de agua

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

• de secano

3.5 Grupo MST al que pertenece la Tecnología

• agroforestería

3.6 Medidas MST que componen la Tecnología

Comentarios:

Type of vegetative measures: aligned: -linear

3.7 Principales tipos de degradación del suelo encarados con la Tecnología

Comentarios:

Main causes of degradation: soil management (Soil left bare during the dry season.), deforestation / removal of natural vegetation (incl. forest fires) (Deforestation in 2004)
Secondary causes of degradation: population pressure (.New areas are deforested, and are degraded after a few years.), inputs and infrastructure: (roads, markets, distribution of water points, other, …) (Lack of irrigation.)

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
• restaurar/ rehabilitar tierra severamente degradada

4.1 Dibujo técnico de la Tecnología

4.2 Información general sobre el cálculo de insumos y costos

4.3 Actividades de establecimiento

	Actividad	Momento (estación)
1.	Plow the field, dig holes and plant mango seedlings.	Once at the beginning of the wet season (May-June)
2.	Sow stylo grass.	Once in July.
3.	Weeding	first 3 months

4.4 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	21,25	21,25	100,0
Equipo	machine use	ha	1,0	100,0	100,0	100,0
Material para plantas	seeds	ha	1,0	8,0	8,0
Material para plantas	seedlings	ha	1,0	200,0	200,0	100,0
Fertilizantes y biocidas	fertilizer	ha	1,0	28,0	28,0	100,0
Costos totales para establecer la Tecnología					357,25
Costos totales para establecer la Tecnología en USD					357,25

4.5 Actividades de establecimiento/ recurrentes

	Actividad	Momento/ frequencia
1.	Harvest 40 kg of stylo grass.	1h/d
2.	Harvest mangoes	April-May
3.	Maintain the stylo grass, sowing bare spots	2 person days per month

4.6 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	590,0	590,0	100,0
Indique los costos totales para mantenecer la Tecnología					590,0
Costos totales para mantener la Tecnología en USD					590,0

Comentarios:

The costs were calculated in 2014 for an area of 0.6 ha. The farmer got 100’000 riel (25US$) for the 800 – 1000 kg mangoes produced, and a bag of fodder (40 kg, that he harvests each day on 0.6 ha) can be sold for around 5000 riel (1.25) on the market.

4.7 Factores más determinantes que afectan los costos:

Describa los factores más determinantes que afectan los costos:

The costs were calculated as if he hired someone, and bought mango seedlings. As he did all of the work by himself, it was much cheaper. The most expensive is the harvesting of the fodder, but it should be taken into account that it is less labour intensive than harvesting wild grasses and cheaper than buying them.

5.1 Clima

5.2 Topografía

5.3 Suelos

5.4 Disponibilidad y calidad de agua

Comentarios y especificaciones adicionales sobre calidad y cantidad de agua:

availability of surface water poor durin dry seasons

5.5 Biodiversidad

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

Indique otras características relevantes de los usuarios de las tierras:

Land users applying the Technology are mainly Leaders / privileged

Difference in the involvement of women and men: Only one man is applying the technology, his wife works in the garment industry.

Population density: 10-50 persons/km2

Annual population growth: 0.5% - 1%

Off-farm income specification: His wife works in a factory.

5.7 Área promedio de la tierra usada 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:

• comunitaria/ aldea
• individual, sin título

Derechos de uso de tierra:

• comunitarios (organizado)
• individual

Derechos de uso de agua:

• acceso abierto (no organizado)

Comentarios:

Land ownership is very complex. Most of the land belongs officially to the government, yet many land users hold a paper confirming they applied for a land title – but de iure, this paper is worthless.

5.9 Acceso a servicios e infraestructura

6.1 Impactos in situ demostrados por la Tecnología

Impactos socioeconómicos

Producción

Ingreso y costos

Impactos socioculturales

Impactos ecológicos

Suelo

Biodiversidad: vegetación, animales

Reducción de riesgos de desastres y riesgos climáticos

6.2 Impactos fuera del sitio demostrados por la Tecnología

6.3 Exposición y sensibilidad de la Tecnología al cambio climático gradual y a extremos relacionados al clima/ desastres (desde la percepción de los usuarios de tierras)

Cambio climático gradual

Cambio climático gradual

	Estación	Incremento o reducción	¿Cómo es que la tecnología soporta esto?
temperatura anual		incrementó	no se sabe

Extremos (desastres) relacionados al clima

Desastres climatológicos:

	¿Cómo es que la tecnología soporta esto?
tormenta de lluvia local	bien
tormenta de viento	bien

Desastres climatológicos

	¿Cómo es que la tecnología soporta esto?
sequía	bien

Desastres hidrológicos

	¿Cómo es que la tecnología soporta esto?
inundación general (río)	no se sabe

Otras consecuencias relacionadas al clima

Otras consecuencias relacionadas al clima

	¿Cómo es que la tecnología soporta esto?
periodo reducido de crecimiento	bien

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)?

Comentarios:

The maintenance costs consist mainly of harvesting, which is very positive.

6.5 Adopción de la Tecnología

• > 50%

Si tiene la información disponible, cuantifique (número de hogares y/o área cubierta):

100% or 1 land user family

Comentarios:

100% of land user families have adopted the Technology with external material support
1 land user families have adopted the Technology with external material support
Other farmers in this village want to grow stylo grass, but cannot get seeds. This farmer starts to sell seeds to other farmers.
Other farmers in this village want to grow stylo grass, but cannot get seeds. This farmer starts to sell seeds to other farmers.
There is a strong trend towards spontaneous adoption of the Technology
Other farmers in the village showed strong interest to start applying this technology. The farmer of this case study started to sell seeds to 3 of them, and 7 others in the area showed interest as well but there were not enough seeds available.

6.7 Fuerzas/ ventajas/ oportunidades de la Tecnología

Fuerzas/ ventajas/ oportunidades desde la perspectiva del usuario de la tierra
As a leguminous, stylo grass could be plowed into the soil to improve the soil fertility.
Less time is needed to harvest fodder for the cattle, as he does not need to collect it from the wild anymore.

Fuerzas/ ventajas/ oportunidades desde la perspectiva del compilador o de otra persona de referencia clave
As a leguminous, stylo grass has a high protein content, which makes it valuable as fodder.
The soil is covered, trees slow down the wind, inducing a good micro-climate and stopping wind erosion.
Water erosion on slopes is reduced as the stylo grass covers the soil.

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

Debilidades/ desventajas/ riesgos desde la perspectiva del usuario de la tierra	¿Cómo sobreponerse a ellas?
The land has to be fenced off, as neighbours cattle otherwise graze in his fodder.	Living fence (currently used by the land users), needs only little maintenance.

Debilidades/ desventajas/ riesgos desde la perspectiva del compilador o de otra persona de referencia clave	¿Cómo sobreponerse a ellas?
Productivity of the mangoes is mostly low as seedlings were used.	Learn how to graft, with improved varieties or selected individuals from the farm. The use of seedlings allows a selection of new varieties; the grafting can take place at any tree size.
The cultivar Stylo 184 has only a single-gene resistance to anthracnose (tropicalforage.info). In case of breakdown all the fodder is lost.	Mixed cropping with another fodder, or mixed cropping of different cultivars of Stylosanthes guianensis
Stylo grass is not considered shade tolerant (tropicalforages.info), when the mangoes will grow higher could become unproductive.	Use dwarf rootstocks for the mangoes, space them further apart, or use different species of fodder.

7.1 Métodos/ fuentes de información

7.2 Vínculos a las publicaciones disponibles

Título, autor, año, ISBN:

Tropical forage info website. Stylosanthes guianensis

¿Dónde se halla disponible? ¿Costo?

http://www.tropicalforages.info/key/Forages/Media/Html/Stylosanthes_guianensis_var._guianensis.htm

Título, autor, año, ISBN:

Feedipedia Website. Stylo (Stylosanthes guianensis)

¿Dónde se halla disponible? ¿Costo?

http://www.feedipedia.org/node/251