RUMPUT VETIVER
PETANI RUMPUT VETIVER / AKAR WANGI ( PENGENDALI EROSI TANAH DARI LONGSOR ) Telp : 021-99213432 Hp : 081288200145 - 081212404956
RUMPUT
VETIVER - SUPPLIER BIBIT RUMPUT VETIVER SE-JAWA BARAT & INDONESIA -
RUMPUT UNTUK TEBING - RUMPUT TEBING JALAN TOL - RUMPUT AKAR WANGI -
WWW.RUMPUTVETIVER.COM - 081288200145
KLIK GAMBAR ...!!!!!
Contoh Area Penanaman Vetiver
Contoh Rumput Vetiver
What Is Vetiver Grass ? Rumput Vetiver, Chrysopogon zizanioides - General Information on Vetiver Grass
Vetiver
grass is a tropical plant which grows naturally. In Thailand, vetiver
grass can be found growing in a wide range of area
from highlands to lowlands in various soil conditions. The
species which is most common in Thailand is referred to in scientific
term as Vetiveria zizanioides. This species appears in a dense clump
and grows fast through tillering. The clump
diameter is about 30 cm. and the height is 50-150 cm. The leaves are
erect and rather stiff with 75 cm. of length and 8 mm. of width.
If planted along contours across
the slope, the clump which stands above the ground will produce
tillers, forming a green hedge. This thus makes it capable of trapping
crop residues and silts which are eroded by runoff and enabling them
to naturally form an earth embankment. Since
vetiver grass has a deep thick root system which spreads vertically
rather than horizontally, it can efficiently endure harsh conditions.
The roots densely bind together like an
underground curtain or wall enabling it to store water and moisture.
However, since the root system expands sideway up to only 50 cm., it
imposes no obstacle to the nearby plants and is thus considered an
effective measure for soil and water
conservation. Vetiver hedgerows maintain soil moisture and soil surface
and at the same time, are suitable for cultivating along with economic
crops. Growing vetiver grass is simple,
applicable and money-saving. The practice can lead to the strengthening
and sustainability of the farming system in rainfed areas and can be
applied in other areas for preservation and conservation of natural
resources such as along the banks of the
irrigation canals, reservoirs or ponds along the road shoulders and the
approach of a bridge, as well as in forests.
 |
|
|
Do You Know Vetiver Grass ?
|
|
|
|
Those
who live and work in cities may not know about vetiver grass. But for
farmers who grow rice, field crops or garden crops, they are familiar
with vetiver grass. Some may even use vetiver leaves
for roof thatching. Therefore, it is worthwhile for us to get to know a
bit about vetiver grass.
|
|
|
|
|
Culm
|
|
|
Vetiver
grass is a prolific tiller growing naturally in clumps with thin,
long, and erect leaves. The vetiver clumps may grow densely tufted in a
big cluster or scattering over the nearby
spaces. The base of the clump is dense which makes it obviously
distinctive from other types of grass. With the bases of the leaves
laying on top of one another, the culm base looks flat. The
genuine culm is a tiny shoot hidden in the leaf
sheath at the culm base near the soil.
The growth of vetiver is determined by
tillering which occurs regularly by producing new shoots on the sides,
making the clump bigger and bigger.
Normally, vetiver grass has a short culm with unclear joints and
pedicels. Aerial branching and culm raising slightly above the ground
is not commonly found in fertile conditions, but with vetiver
tillers grown in bags, in plots with old tillers or
in critical conditions.
|
|
|
Leaf
|
|
|
Vetiver
leaves will sprout from the bottom of the clump. Each blade is narrow,
long and coarse. The edge of the blade is parallel and the apex is
acute. Particularly on old leaves, the edge
and midrib are spinulose. Normally, the base and the middle of the
blade have few spines whereas the apex has numerous spines. All spines
are pointing diagonally towards the apex.
The ligule at the base of the leaf is
observable in a shrinkingly bending form with short silky hair which
sometimes cannot be noticed.
|
|
|
Roots
|
|
|
Vetiver
roots are important and the most useful part. Most grass have fibrous
roots which spread out from the underground part of the culm and hold
the soil in an horizontal pattern. The
roots that penetrate vertically into the soil are not deep. In
contrast, the root system of vetiver grass does not expand horizontally
but penetrates vertically deep into the soil, whether it be
the main roots, secondary roots or fibrous roots.
|
|
|
Inflorescence / Spikelets
|
|
|
Vetiver
inflorescence is erect and it appears in the form of a panicle. The
panicle and the stalk which is round and long are about 100-150 cm. high
above the ground. However, for a mature
culm, the stalk can be as high as 200 cm. The inflorescence or the
panicle alone is about 20-40 cm. high and can spread out at a maximum
width of 10-15 cm. The inflorescence of Vetiveria
zizanioides are mostly purple, the colour which is an ordinary
attribute of this species.
The spikelet appears in pairs with similar
features and size, except for the base of the stalk which has 3
spikelets. Each pair consists of both
sessile and pedicelled spikelets. The sessile spikelet is at the
middle, whereas, the pedicelled one is at the tip.
Each spikelet is similar in appearance to a
spindle. The edge is parallel and oval. The
cuneate apex is 1.5-2.5 mm. wide and 2.5-3.5 mm. long. The surface of
the back of the spikelet is rough and consists of minute spines,
especially at the edge which can be clearly seen. The lower part of the
spikelet is smooth.
|
|
|
Seed and Seedling
|
|
|
After
breeding, the sessile spikelet which is a hermaphrodite flower
produces seeds. Each seed is light brown and in spindle shape. The
surface is smooth and the apex and base is
round. The inner texture is like sticky flour which turns stiff when
exposed to strong wind, concentrated sunlight or other critical
climatic conditions. Stiffness disables the seed to enlarge, thus
impairing its chance to germinate.
Since the seed can germinate only within a
limited period of time and some ecotypes which are imported do not seed
at all, the vetiver grass cannot spread like a serious weed.
|
|
|
|
|
|
How is Vetiver Grass Different from Imperata cylindrica Beauv. (Laa Laang)?
|
|
|
|
|
|
Vetiver
clump is bushy with the crown part bending down to the ground. The
blade of the leaf is grooved at the middle with slim, long tip, and
sharp base. At the base, the leaves lay on
top of one another and look flat. Vetiver grass propagates by means of
tillering like lemongrass. It produces reddish-brown inflorescence with
spikelets. After the spikelets fall, new tillers appear at
the joints. Tiny vetiver tillers can be eliminated by
single ploughing.
Imperata cylindrica Beauv. grows into a
continuous pattern of clump because its underground rhizomes hold
tightly together. The culm is round and
covered with a leaf sheath. The petiole is small and also round. The
blade of the leaf is flat. The inflorescence is creamy white and
cotton-like which can be easily blown away by the wind. The seed can
germinate, thus making the grass become a
destructive weed that is difficult to eliminate despite many times of
ploughing.
|
|
|
Can Vetiver Grass Become a Serious Weed?
|
|
|
There
are voices of concern that vetiver grass may become a serious weed
like Imperata cylindrica Beauv. (Laa Laang), Pennisetum polystachyon
Schulf. or Mimosa pigra Linn. when
introduced into various areas. Generally, vetiver grass propagates by
producing new shoots at the joints above soil surface and by branching
at the joints below soil surface that have inflorescences. Most
spikelets are not subject to fertilization and
the seeds which are very thin have a short dormancy period. This thus
allows it limited opportunity to germinate and spread like weed.
Farmers can control and eliminate vetiver
grass easily by digging out the clump or ploughing. It never appears
that vetiver grass becomes weed in any areas it has been introduced.
|
|
|
|
|
What are the Uses of Vetiver Grass?
|
|
|
|
We can make use of every part of vetiver grass as follows:
|
|
|
|
|
|
|
|
|
- trapping crop residues and silts eroded by runoff
- roof thatching
- as raw material for making paper
- making ropes, mats, hats, baskets etc.
- as animal fodder for sheep, cattle etc.
- mulching, covering the ground of animal stables
- as planting material for mushroom culture and for making compost
- others
|
|
|
|
- absorbing water and maintaining soil moisture
- absorbing minerals and nutrients/decomposing as organic matters, thus making the soil friable
- absorbing toxic substances in chemical fertilizers and pesticides
- improving the physical elements of the soil
- making screens, blinds, fans, handbags
- making herbs and skin care substances
- extracting volatile oils for making perfume and aromatic ingredients in soaps
- as insect and rodent repellents
- others
|
|
|
 |
|
|
|
|
|
Where can Vetiver Ecotypes be Obtained?
|
|
|
|
|
For
those who are impressed with the uses of vetiver grass as mentioned
earlier and wish to obtain certain ecotypes for planting in areas for
soil and water conservation and environmental
improvement purposes, please contact the followings:
|
|
|
Vetiver hedge as a strip to trap crop residues and soil sediments
|
|
|
|
|
|
- Land Development Offices or Stations in the regions and provinces
- Six Royal Development Study Centres situated in all regions of the country
|
| |
