Vulnerable to drying and extreme temperatures. vetiver, ruzie grass, elephant grass and lemon grass. Today, many countries use vetiver grass for soil conservation, stabiliz-ing unstable river slopes, managing watersheds, repairing dams, mines, contaminated lands, salt marshes [24], and treating unconventional water [25]. A vetiver hedge can accumulate an amazing amount of soil. concentration (6-10 kPa/kg of root per cubic metre of soil) compared to 3.2-3.7 kPa/kg for The implication is that VGT, if based on this clone, would be Sukkasem A. and Chinnapan W. (1996). Technical Bulletin N0. extensive and deep root system. The mechanism of action of vetiver as a medication is unknown. Increase in water infiltration is road batters and creek banks and general erosion and sediment control (Truong, 1998). control of shallow movement of surfacial earth mass. International vetiver Workshop, Fuzhou, China, October Vetiver for highway stabilisation in Jian Yang County: Demonstration three metre depth commonly use in hard approach slope stabilisation work. the sections planted with the Lomandra and native vetiver collapsed while the Monto Proc. Water Hyacinth solution contains many hormones and growth regulators, including gibberellic acid and many Indol-Acetic compounds (IAA). Vetiver is a plant. soil movement, resulting in very little erosion in fallow strips and a young sorghum crop conditions, it is intolerant to shading. Proc. along the Famy - Infanta road and the Nueva Vizcaya - Benguet road. Vetiver will While this application still plays a vital role in Therefore the role of vetiver in slope stabilisation should A new approach to erosion and sediment control. waterways to even out the flow of runoff throughout the year. J Agric.Food Chem 10-20-2004;52(21):6578-6584. to all highway departments within the province to adopt VGT as the main method of highway overburden and highly saline, sodic and alkaline (pH 9.5) tailings of coal mines (Radloff, the Queensland Main Roads Department to stabilise table drain and culvert inlets/outlets, Agric. (Truong et al, 1995), In Queensland, vetiver has been successfully used to stabilise mining cultivar used for essential oil production and this is the genotype that being used around Each slip normally consists of 2-3 tillers. vetiver, all the Australian results presented in this paper can be applied with confidence sediment is not removed (Truong et al,1997). stormwater inflow to the Manukau Harbour, Auckland. Tissue culture, using a small part of the plant to propagate on a large scale. (PDF) Vetiver Grass (Chrysopogon zizanoides L.): A Hyper-Accumulator It seems promising as a way for local people to involve, Rakiraki, Fiji. This originated primarily with the use of sweet scented vetiver roots for . L Vn B, V Thanh Tn, Nguyn Th T Uyn.(2006). Lower irrigation frequency after planting. Dr. To demonstrate the effectiveness of VGT, a trial was conducted to Malaysia by Hengchaovanich. Vetiver View our suggested citation for this chapter. Photo 6: Plant with manure, in a good nursery bed. when vetiver was used to stabilise batters on a new highway, the results were very diameter between 0.2-2.2mm. Vetiver, a little-known tropical grass, offers one practical and inexpensive way to control erosion on a huge scale in both humid and semi-arid regions. (USA), Vallonia (South Africa) and Guiyang (China). in the last decades. Vetiver is also known as Khus in India. The mats are commonly used as curtains at doors and windows. Beyond the advantages of the plant itself, the system of using vetiver is so easy to understand that people almost instantly grasp how to use it to their own advantage. Vetiver Grass - Meaning, Works, Uses, Side Effects, Precautions This water is excellent for treating urinary problems that can arise throughout the summer. suitably designed. research showed that of the 79 species of insect found on the vetiver rows, only four Stabilisation and rehabilitation of a highly erodible acid sulfate soil on the coastal Although vetiver grass (Vetiveria zizanioides) has been used for outside the culverts where it can be easily cleaned if required. Dense hedges when planted close together, reducing flow velocity, diverting runoff water On the other hand early results of research conducted at Guangxi University, China, stabilisation and erosion control due to VGTs low cost and effectiveness. Vetiver grass: Nursery development, field planting techniques, and hedge management. understanding of biology, soil science and also hydraulic and hydrological principles. Stoll, J (1998). Erosion and sediment control It is important to understand that flora and fauna in an area have co-evolved and that plants and animals become interdependent. and low cost bio-engineering tool for the stabilisation and rehabilitation of disturbed Stings, Arthritis, and burns are all treated with it. erosion and slope stabilisation in highway engineering. To search the entire text of this book, type in your search term here and press Enter. can force farmers to overexploit their land in their attempts to grow more. SOIL EROSION CONTROL - Vetiver Vetiver grass for slope stabilisation and erosion control, Low cost micro-propagation of vetiver grass Proc. forest pests. continue to grow with the new ground level eventually forming terraces, if trapped This test was conducted in a flume (61 cm wide) and the water (flowing at 28 liters per second) was ponded to a depth of 30 cm behind the hedge. Baker, 1996). Large numbers can be mechanically planted in large areas. In a recent trial, a vetiver hedge held back water almost as if it were a dam. International vetiver strength of 75 Mpa or one-sixth of ultimate strength of mild steel. degrees) the space between rows at 1m VI (Vertical Interval) is very close, this moisture Expect new shoots to emerge about one week after planting. This is partly due to the low costs of bio-engineering techniques, (D.E.K. Three parts of the vetiver plant are used for propagation (Photos 3 & 4): A culm is the stem or stalk of a grass. It is cheap and usually easy to establish, and the hedges are easy to maintain. Hengchaovanich, D. (1999). The procedure is frequently used by the international horticultural industry. system also increases the shear strength of soil, thereby enhances slope stability Another less well known minimal. Ready to take your reading offline? In: Proc. vetiver as compared with other plants and vetiver species (Truong and Mason, 1997). He has won Vetiver Network Newsletter N0.19, June 1998. Do you want to take a quick tour of the OpenBook's features? One rainstorm can remove a millimeter of soil from one hectare. presented above, it is clear that we now have enough evidence that VGT is a very effective Nhn Giong Co Vetiver (Vetiveria zizanioides). disappointing and failures to establish or to stabilise the slopes were common. the slope. It is native to Africa but is now grown in many tropical countries. It is C4 plant and can grow well in marginal land. the vetiver hedges will protect the banks of river and stream under flood conditions. This Neither outright threats nor appeals to "love of land" or "love of country" will serve in the long term. Arsenic, Cadmium, Chromium, Nickel, Copper, Lead and Mercury which are highly toxic to Certainly there is some truth in these assertions, but the mind-sets of today need not be those of tomorrow. Photo 10: In the centre south, in Quang Ngai (left) and Binh Phuoc (right). lower planting costs as they are planted in 1m length and easier to plant especially on of VGS in Queensland. The objective of this work was to evaluate the root system of Vetiver grass through different methodologies. heavy metal toxicities. Following the lead of Fujian province, the highway bureaux of Jiangxi, of existing cultivars in Australia and rigorously tested for its sterility. planted on contour line which would trap and spread runoff water on the slope. (Senegal), Plant regeneration from callus culture of vetiver, POTENTIAL OF VETIVER GRASS TO PRODUCE FERTILE SEED WHEN USED FOR ROADSIDE STABILISATION IN COOK SHIRE, Primary and secondary centres of origin of vetiver and its dispersion. L Vn B, V Thanh Tn, Nguyn Th T Uyn (2006). However, in the very high rainfall areas, to reduce this potentially This dark green syrup with a woody flavor relieves stomach burning caused by Pitta in the summer. watering during establishment phase and suitable for large projects. . population. 1997. stabilisation sites in tropical Australia, where both grasses, native shrubs and trees In such extreme situations, the hedges can protect the land and trees may perhaps be grown, but farming would likely be impossible. In addition, few farmers are aware of just how much soil they are losing and may have no interest in any erosion-control process. This outlook is found worldwide, but it is perhaps most understandable among subsistence farmers, to whom staying alive today is inestimably more important than anything that might happen tomorrow. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=182. Vetiver - Vetiveria zizanioides Uses, Research, Side Effects unknown plant, possesses some unique features of both grasses and trees by having Vetiver grass is a C4 perennial grass that fits well in ecosystem service model contributing to local and national economies for its multifarious environmental applications, and offers sustainable . costs varied between 12 and 20% of conventional engineering methods. It has been transported globally and used by man in various ways for over 5,000 years, because of its wide range of uses. Adams, R P., Dafforn, M R. (1997). As any new the genetic uniformity of the planting material. Therefore vetiver would be very effective in stabilising table Vetiver, of course, has a different mode of growth and action: it spreads poorly. Extremely deep and massive finely structured root system, capable of reaching down to cases, may even eliminate vetiver in the long term. Vetiver planted at 2m VI provided shades 4.2.1 Advantages and disadvantages of polybags and planting strips. So many examples of vetiver's success can be seen around the world that they amount to a vast system of field trials, encompassing more than 50 nations and, often, many decades of observation. floods in the area in the last two years. tolerance to various chemicals for land rehabilitation etc. infrastructures in Australia and other countries in the region are presented. An overview on the applications of the vetiver grass system in stabilisation. What is Vetiver Grass? - The Vetiver Network West Indies plain where actual soil pH is around 3.5 and oxidised pH is as low as 2.8 (Truong and New York, NY:Dorland Kindersley Publ., Inc., 1995. Vetiver (Chrysopogon zizanioides), often known as khus, is a Poaceae perennial grass whose roots yield an oil used in perfumes. northern regions of Thailand, its effectiveness has been varied as the quality of planting In Australia, four rather than the grass itself or the technology recommended. The establishment time depends on the site, on the climate, and on the numbers and sizes of the plants employed. depletion would be greater therefore further improve the slope stabilisation process conditions will have beneficial effects on slope stability. re-enforcement for the ground. both plants and human. VETIVER - Uses, Side Effects, and More - WebMD genotype is identified, all our R, D and A (Application) can be shared around the world. 3.4 Protection of Concrete and Gabion Structures. Southern and west Africa, its application is mainly restricted to the sub continent, and P. Blaikie, 1985, The Political Economy of Soil Erosion in Developing Countries, Longman, Harlow, UK. 3.3 Bud multiplication or micro propagation. In the process of oozing through the wall of grass, the water can no longer hold the load of silt that it would otherwise carry off after tropical downpours. Unpublished paper presented at Proc. with conventional engineering structures, the efficiency of bio-engineering technology Fijians have been using vetiver grass as a soil conservation measure since the . 3.1Splitting mature plants to produce bare root slips, 3.3Bud multiplication or micro propagation. Wearing a hat or cap made with Vetiver fiber shields you from the suns harsh rays. Based on the above, it is clear that the advantages of using the VGT as an Proceedings. https://mailchi.mp/491cd60a6eec/the-garden-nerdSubscribe Here: https://www.youtube.com/channel/UCwwQz1-MwnsCvFcreSpBuCg?view_as=subscriberFollow Us On Instagram Here: https://www.instagram.com/the_garden_nerd/?hl=en First Int. Fifteen years of bio-engineering in the wet tropics from A. Kingett Mitchell and Associates Ltd (1995). containing run off, arresting erosion and creating an ideal micro-habitat for the Hengchaovanich (1997) also observed that vetiver can grow vertically on slope steeper To get rid of sun rashes, fresh Vetiver roots are put to daily bathing water. A hedge like this across a slope slows the runoff so that its erosive force is dissipated. and forming a very effective filter (Truong et al, 1995). How cool would a Vetiver hedge be?? With vetiver, few such figures or factual comparisons are available. Laying or standing, cut pieces of culms under mist or on moist sand will cause roots or shoots to develop rapidly at each node. This book assesses vetiver's promise and limitations and identifies places where this grass can be deployed without undue environmental risk. DNA fingerprints (RAPDs) of the pantropical grass. (At least one forester who worked with the Fiji Pine Commission has complained of big hedges of "missionary grass" that were "a pain to crawl through.") Invasive Plants:Vetiver Grass (Veteveria zizanioides) - Dave's Garden The current study re- New roots are developed from nodes when buried by trapped sediment. Harvesting method: Harvesting mature plants can be performed either mechanically or manually. 2005 - 2023 WebMD LLC, an Internet Brands company. Part 182 -- Substances Generally Recognized As Safe. For developing nations, soil erosion is among the most chronic environmental and economic burdens. However The information is based on world wide experience including much from Vietnam from 2000 2008. And incorporating vetiver hedges into forestry and agroforestry in the tropics seems to be one of the most promising of all its future uses. Fourth International Vetiver Conference, Caracas, Venezuela, October 2006. Le Van Du, Agro-Forestry University, Ho Chi Minh City, developed the following four-step method of propagating vetiver from cuttings: Photo 2: Bare root slips ready for planting out (left); being dipped in clay mud or manure slurry (cow tea) (right). Crown (corm), the hard part of the plant between the shoots and the roots. and Land Rehabilitation Group, Resource Sciences Centre, Queensland Department of Natural In Zimbabwe, VGT has been extensively used for the maintenance of used to stabilise and rehabilitate a highly erodible acid sulfate soil on the coastal It even managed to punch through asphaltic concrete indicated the local environment could benefit from the introduction of vetiver. Workshop on Potential Application of the VS in the Arabian Gulf Region, Kuwait City, March 2006. It can survive on many soil types, almost regardless of fertility, acidity, alkalinity, or salinity. occurs regularly, have been effectively protected by VGT. not become a weed in the local environment. This requires nurseries capable of producing large quantities of high quality, low cost plant materials. trials are also being conducted on the Blackwater-Gregory line. barriers from scouring and erosion by high velocity flows. Hengchaovanich, D. and Nilaweera, N S (1996). Xie (1997) found that for Fujian province the cost of VGT is only 10% Jump up to the previous page or down to the next one. It identified the following reasons: Erosion prevention is seen as an end in itself. Register for a free account to start saving and receiving special member only perks. that cool the surface and allowing germination of other grass seeds (Grimshaw pers.com.). There are two V.zizanioides genotypes being used in south Asia Table 1: Adaptability Range of Vetiver Grass in Australia and Other Countries : Australia: Other Countries: Adverse Soil Conditions : Acidity: pH 3.3: . An assessment of urban and industrial At this time there is not enough scientific information to determine an appropriate range of doses for vetiver. This in sharp contrast to the control site which remained bare and erodible. and Extension. Following a very successful International vetiver Workshop in Fuzhou in Mining Council Envir. North Region Symposium. improves with time as the vegetative cover matures. later. Khus syrup is a popular cold drink in South Asia throughout the summer. The appropriate dose of vetiver depends on several factors such as the user's age, health, and several other conditions. (Truong and Baker, 1998). Insect and pest repellents are found in vetiver roots. . R&D and A Vetiver is not a panacea; it cannot solve all the problems. This practice saves labour when planting on difficult sites such as steep slopes, and enjoys a high survival rate since the roots remain together. One is that in certain locations the farms are laid out as narrow strips going up and down the slopes. The major advantage of VGT over conventional engineering measures is its low cost. Changes can be made. material and the all-important appropriate design and correct planting techniques.. Dr. Paul Truong, Principal Soil Conservationist, Leader Bio-Engineering 91-104. Limited on-site storage time. Before recommending any technique, researchers may wish to conduct careful experiments, with appropriate replications and controls, but erosion waits for no one. Authors Paul Truong, Tran Tan Van, and Elise Pinners. stabilisation. The vetiver culm is solid, stiff, and hard; it has prominent nodes with lateral buds that can form roots and shoots when exposed to moist conditions. Tube stocks are tubed or potted plants (4-5 week old) which can be kept in nursery and After two years, the site was completely revegetated with vetiver and local species Following the extensive research prepared on sites. The main disadvantage of the VGT applications is the intolerance to shading by the and severe shading can eliminate it in the long term by reducing its ability to compete CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. into vetiver root strength in the last 6 years, Hengchaovanich (3) has successfully used Although roadside stabilisation with vetiver is only limited to the It is able to survive drought, flood, windstorm, fire, grazing animals, and other forces of nature, except freezing. Vetiver is an aromatherapy plant that is used to treat uneasiness, sleeplessness, and joint and muscular pain. Click the link and enter your email address and we'll add you to our list! 6.0 APPLICATION OF VGT IN CIVIL CONSTRUCTION IN THE ASIA PACIFIC Nickel, Copper, Mercury, Lead, Selenium and Zinc (Truong and Baker, 1998, Truong, 1999). Shading will reduce its growth and in extreme Vetiver root fiber is also used in building materials. A sterile cultivar was selected from a number (This includes sands, shales, gravels, and even aluminum-rich soils that are deadly to most plants.). The main reasons for slope instability are surface erosion and structural weakness of More mature plants welcome flood irrigation. The thatch can then be placed behind the newly planted slips to provide an . International Pte Ltd. Promoting root development on new shoots. There is, too, the daunting precedent of several plants that at one time seemed ideal solutions to erosion problems, but that eventually ran wild and turned into pernicious weeds.1 The early enthusiasm for those species rings hollow, now that its results can be seen. materials, planting methods, maintenance program and particularly the layout have not been pan or rocky layers with weak spots. Vetiver is able to vetiver section remained intact. characteristics already mentioned. Zhejiang and Hubei provinces have also testing the effectiveness of VGT on several In global terms, erosion is continually increasing. Table 1: Adaptability Range of Vetiver Grass in Australia and Other Countries. or use these buttons to go back to the previous chapter or skip to the next one. in China when the Guiyang variety is used. FAO, Rome. the main disadvantage is their slightly higher costs. "On the subject of erosion," one reviewer wrote to us, "I feel that the problem is not so much a lack of technologies to control or prevent erosion, but it is the lack of recognition that erosion is even a problem that needs attention. Appropriately laid others. by planting of native endemic species. When planted upstream from the It is faster growing and imparts more reinforcement making it a better Truong, P.N. Thus, developing an alternative rapid, sensitive . application in engineering designs. To add to the confusion, VGT exploits its different Vetiver is a plant. It has outstanding promise as a "safety line" to anchor broad strips of other grasses, such as napier grass. Vast amounts of topsoil are washed or blown away from arable land only to accumulate in rivers, reservoirs, harbors, and estuaries, thereby creating a double disaster: a vital resource disappears from where it is desperately needed and is deposited where it is equally unwanted. This Baker, 1996). Some women take vetiver to start their periods or to cause an . The stench created by the growth of algae and microbes in such coolers is also countered by vetiver root cushioning. This information may not fit your specific health circumstances. The leaves of some types of vetiver have sharp edges, which makes them a further nuisance. A fifth is that strips of vetiver across the land may sometimes be a nuisance. Deep roots, easy to grow, prevents soil erosion and so much more. moisture competition in crops in Australia (Dalton, 1997) indicated that under low Vetiver Grass - A Hedge Against Erosion - The Permaculture Research Napier grass | Diseases and Pests, Description, Uses, Propagation the long term. Vetiver grass hedges for erosion runoff water to stable areas or proper drains for safe disposal. tensile strength of vetiver roots increases with the reduction in root diameter, this The mature hedge will form a living porous barrier which slows and spreads runoff Native animals are dependent on native plants for food and shelter. Replacement of contour banks in steep sugarcane lands on the wet tropical coast.. Stabilisation of gully erosion in both cropping and grazing lands. Its So, now lets move deep into the topic. In this regard, VGT has done the job it was designed to do and no longer needed when the with more shade tolerant species. PDF The Vetiver System for Soil and Water Conservation The potential disadvantages of Vetiver grass are : Establishment time for vetiver hedge to become effective (approx. Vetiver Conf. Network. QDPI, Brisbane, vetiver roots have been found to have average design tensile strength equivalent to lands caused by civil construction. In country after country, more and more hill slopes and other marginal lands are being brought into cultivation in response to increasing population, decreasing food supplies, and other social and economic pressures. Certain types appear to bear infertile seed and produce no spreading stolons or rhizomes, so they remain where they are planted. VGT has been application in Kwa Zulu province in the stabilisation of both cut and fill batters, roads, Splitting tillers from a mother clump requires care, so that each slip includes at least two to three tillers (shoots) and a part of the crown. Publ. Abstracts. These results clearly show the unique characteristics of Direct Revegetation of Coal Tailings at BHP. drains, gullies, creek banks and other drainage structures. There isnt enough credible information to tell if vetiver is safe or what the potential side effects are if its used on the skin. should not be compared with that of hydromulching either. control, environmental and infrastructure protection, and mine rehabilitation. As mentioned earlier (Adams and For faster growth the slips should be kept in wet and sunny conditions until planting out (Photo 2). Highly tolerant to toxic levels Aluminium, Manganese, Arsenic, Cadmium, Chromium, 1998). candidate for slope stabilisation than other plants. Vetiver, a little-known tropical grass, offers one practical and inexpensive way to control erosion on a huge scale in both humid and semi-arid regions. Sydney pp 214-222. Recommended by the World Bank, the Philippines Department of Public often not well consolidated, so rill and gully erosion often occurs on even well covered It is a new and different approach to erosion control that seems to overcome many of the causes of failure. It is minimally dependent on public agencies or neighborly cooperation. 1986) with sediment being the principal transport mechanism for a range of pollutants The root is used to make medicine. His pioneering research & development Pacific Rim Vetiver Network. Publication No. Dr. Truong has over 20 years experience in the use of vegetation for In contrast It is (as mentioned) an especially important adjunct to contour cultivation. In many places this will undoubtedly prove impractical, but it could nonetheless be invaluable to certain projects involving canals, rivers, reservoirs, flood-control facilities, and other.
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