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AGRODESIERTO
PROGRAMAS AGROFORESTALES |
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AGRODESIERTO
PROGRAMAS AGROFORESTALES |
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| "Vetiver, la barrera contra la erosión". División de Operaciones de Agricultura. Banco Mundial. Washington, D.C. USA. Inscripción ISBN 0-8213-1706-7. |
| "Vetiver Grass - The Thin Green Line Against
Erosion"
National Academy of Sciences. Washington, D.C. |
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Xerics. Vivero de Plantones de Vetiver.
http://www.xerics.com/ |
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Ecuativer. La Red Ecuatoriana de Vetiver.
http://www.ecuativer.com/ |
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Vetiveria. Barrera Viva Contra la Erosión.
Sociedad Conservacionista Aragua, Venezuela.
http://www.socaragua.atfreeweb.com/vetiver.htm |
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Una maravilla llamada Vetiver. El Nuevo Diario.
Nicaragua.
http://www.elnuevodiario.com.ni/archivo/2001/febrero/15-febrero-2001.html |
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Erosión del Suelo: Vetiver, un Arma
Vegetal. Agroneg.com.
http://agroneg.com/articulos/erosion_del_suelo.htm |
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Barreras físicas para el control y
encauzamiento de la escorrentía. FAO.
http://www.fao.org/ag/ags/AGSE/agse_s/7mo/iita/C13.htm |
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Boletín De La Red LatinoAmericana
del Vetiver.
http://www.host.fptoday.com/vetiverbeta/LAVNL3.htm |
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Barreras de Vetiveria para Conservación
de Suelos con Cultivos Alternativos. Perú.
http://www.vetiver.org/PER_general.htm |
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Información Técnica Sobre Pasto
Vetiver. Vetiver Network.
http://www.vetiver.org/LAVN_infopasto.htm |
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La Red Latinoamericana del Vetiver
http://www.vetiver.org/LAVN_NET.htm |
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The Vetiver Network
http://www.vetiver.org/ |
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Vetiver technology Inter. Inst. for Infrastructural,
Hydraulic & Enviro. Engineering at Delft.
http://www.ihe.nl/he/dicea/clm32/clm3251.htm |
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Uses of Vetiver Grass
http://www.chaipat.or.th/vetiver/vetiver_7/body_vetiver_e7.html |
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Vetiver Usages
http://thvn.rdpb.go.th/english/usages28.html |
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Vetiver program in Oaxaca, Mexico. Planting
and nursery information.
http://www.jamesroe.com/rural/vetiver.htm |
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"Vegetative Barriers". USDA National Sedimentation
Lab, USA.
http://www.sedlab.olemiss.edu/uep_unit/projects/Dab_veg/index.htm |
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Vetiver Identification Program. Vetiver Network.
http://user.aol.com/vetivernet/vip/vipmain.htm |
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Vetiver grass - a new Green Revolution?.
The Global Ideas Bank.
http://www.globalideasbank.org/BOV/BV-333.HTML |
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Agricultural and Other Uses of Vetiver.
http://www.host.fptoday.com/vetiverbeta/Agricuses15.htm |
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Vetiver: The Hedge Against Soil Erosion.
Asareca.org. Africa.
http://www.asareca.org/html/vetiv8.html |
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Vetiveria nigritana and its Use in Senegal.
Photos. Vetiver Network.
http://www.vetiver.org/SEN_NIG.htm |
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Asareca.org. Vetiver: The Hedge Against Soil
Erosion.
http://www.bugwood.caes.uga.edu/asareca/html/vetiv8.html |
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Canario |
Publicaciones |
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Herpetológico |
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Plants and Items For Sale |
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Apartado de Correos, 94 35080 Las Palmas de Gran Canaria Archipiélago Canario |
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P.O.Box, 94 35080 Las Palmas de Gran Canaria Canary Islands |
| E -Mail: agrodesierto | Fax: + 34 - 928 - 35 07 55 |
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According to His Majesty
the King's Royal Initiative, the main purpose of vetiver grass cultivation
is to conserve soil and water, particularty for the steep slopy areas.
In spite of the effort, some farmers are still reluctant to accept its
valuable attributes because cultivation of vetiver in agricultural areas
in order to conserve soil and water does not produce tangible benefits
in terms of revenue. Actually, vetiver leaves and roots can be used for
other purposes especially its leaves, which usually have to be cut to keep
the vetiver rows in order and can be used for roofing as well as making
handicraft products to gain extra income.
Use of vetiver leaves for handicraft weaving products
The vetiver species, the
leaves of which are suitable for making handicraft products, is the Vetiveria
zizanioides Nash with ecotypes like Sri Lanka, Kamphaeng Phet 2, Surat
Thani, Songkhla 3 etc. This species has long and waxy leaves which soften
when they are wet. They are thus suitable for making handicraft products.
Handicraft items which can be
made from vetiver leaves include weaving products which are popular and
serve various purposes such as :
basketry and kitchen utensils
home decoration items
accessories
office supplies
Preparing the vetiver-leave
material can be done using the traditional simple and convenient sun-dry
menthod. For a faster drying, vetiver leaves should be placed on a raised
screen, thus allowing both sides of the leaves to dry within 3-6 days after
which the dried leaves need to be soaked in water or to make them soften
appropriate for weaving, and to avoid hand-wounding while weaving.
Handicraft weaving products made of vetiver leaves
basketry and kitchen utensils such as basket, flat basket, winnowing
basket and different types of tray
home decoration items such as wall clock, picture frame, lampshade,
display item, flower
accessories such as lady's bag, hat, belt, brooch
other products such as folder, diary cover
The aromatic vetiver roots
are used for making fans, cloth hangers or are mixed with other dried flowers
and leaves to make pot-pourri.
Use of vetiver culm and leaves for mushroom culture
More precisely, vetiver
culms and leaves contain chemical compounds like cellulose, hemicellulose,
lignin and crude protein as well as various minerals with certain bacteria
that can be grown under fermentation processes. So they can be beneficially
used as the planting material suited for mushroom culture. This is provided
by cutting culms and leaves of the grass into small pieces at a size of
1-1.5 inches, soaking them in water and fermenting them for 3-4 days. Then
the material is packed in a sterilized bag after which it is accordingly
inoculated with mushroom spawn under the mushroom spawn preparation procedure.
Most economically popular mushrooms grown well on the vetiver planting
material are oyster mushroom, Bhutan mushroom, angel mushroom, abalone
mushroom, and Chinese mushroom.
Use of vetiver culms and leaves for roof material
As practiced, Thai people
have been recognized using vetiver culms and leaves in the same manner
as nipa palm leaves for making and maintaining roof covering for a long
time, prior to the use of commonly found Imperata cyclindrica Beauv. (Laa
Laang) cogon grass.
In using vetiver grass best suited
for efficient roof material, it should be selected from healthy culms and
more than one year of age. The color of leaves should be turning from green
to yellow, but should not be completely dried yet. Normally, the harvest
of leaves is usually done during January and February by cutting about
one-hand palm or less in length above the ground. Then comb
off the short or broken leaves, dry in the sun, and tie up as a bundle
called "kon" with about 3 handful bunches which can produce 5 to 7 vetiver-thatch
sets. To make vetiver thatch set, it requires binding axle, using a strip
of bamboos or a thornless-type of bamboos to function as the grass-bunch
binding structure. In binding each grass-bunch into the axle, 5-6 grass
culms with 12-16 leaves are required. This grass-bunch is to be folded
at a length of 1/3 placing culms being the shorter side and grass leaves
being the longer side. Then the bunch needs to be fastened firmly to the
axle structure with vines, bamboo wicker's -bar ropes, or other binding
materials to complete the thatch set. One vetiver-thatch set with 120-170
cm. long will require approximately 150 bunches of culms and leaves consisting
of 750-900 tillers.
In roof operating, it is important
that the culm (shorter side) with each set of the thatch is to be placed
against the roof structure, while the leave (longer side) being the upper
side. Then the connecting points need to be laid accordingly from lower
levels up to the top end of roof structure.
It appears that vetiver grass
produces a higher-quality roof material than Imperata cylindrica Beauv.
(Laa Laang). This is because the vetiver culms and leaves coated with wax
with a unique scent, and not being susceptible to insect pests. Life expectancy
of the vetiver material depends on neatness in the nature of thatch making.
A thatch set with more culms and leaves or denser grass will be more durable.
Also, the nature of roof in which the thatch sets are being laid is another
matter. A good example of this is the use of vetiver thatch sets for a
particular traditional Thai-style house with a steep sloping roof which
can be much more durable than that for a flat roof house.
Use of vetiver culms and leaves for making compost and mulching
Periodically cuttings of
vetiver culms and leaves to enhance better tillage regime or to prevent
them from flowering can be used as a suitable compost raw material alike
other crop residues. The process of decomposition of the culms and leaves
will be completed within 60-120 days. Then, it will become soft, friable,
and dark brown to black color of vetiver compost. There is an indication
from soil analysis data that one metric ton of compost made from vetiver
clumps and leaves is equivalent to 43 kg of ammonium sulfate. Increasingly,
there is the trend toward significant available mineral nutrients in vetiver
compost especially nitrogen (0.86%), phosphorus (0.29%), potassium (1.12%),
calcium (0.55%), and magnesium (0.41%) with a neutral pH of 7.0. In addition,
it is recognized that more frequently cuttings of its culms and leaves
can provide suitable materials for mulching to increase soil moisture-holding
capacity, and provide humic acid that contributes to improved soil fertility.
Use of vetiver materials for making green fuel
Vetiver grass litter or
lopping as well as root residues can be used as beneficial vetiver by-product
materials best suited with proportional water-hyacinth crop mixes to serve
as a high-quality source of green fuel. This type of fuel is provided by
the use of a 3:2 proportion compressed fuel shaft process through a 1.7
cm. diameter cylindrical compression squeezed equipment. The system model
is proven to be practical in supplying a high-temperature value and burning-quality
of green fuel with little smoke. For example, it takes 5 minutes to boil
1 liter of water, while the fuel still keeps on burning up to 28 minutes.
Barrera contra la Erosión.
