Vetiver is already being planted in several countries to reinforce and improve the stability of terraces, berms, and bunds. How cool would a Vetiver hedge be?? In addition to its unique morphological characteristics, vetiver is also This indicates that an Integrated Pest Management scheme will be put into Acid Sulfate Soils, Coffs Harbour, Mature vetiver, however, thrives under waterlogged conditions. Normally a good vegetative cover provided by hydromulching is very effective against municipality ( Xu, pers.com.). "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. Nhn Giong Co Vetiver (Vetiveria zizanioides). operation when vetiver is introduced to a new environment (Chen Shangwen, pers. inlets, vetiver hedges will not only protect the inlets but they also trap the sediment the genetic uniformity of the planting material. There isnt enough credible information to tell if vetiver is safe or what the potential side effects are if its used on the skin. Flood erosion control on the floodplain. Vetiver for highway stabilisation in Jian Yang County: Demonstration 7.0 SOME OTHER APPLICATIONS OF VGT IN THE REGION, VGT is highly successful in the rehabilitation of old quarries where Vetiver is a plant. What is Vetiver Grass? - The Vetiver Network West Indies It can stand extreme heat (50C) and frost (-10C) and can be established in areas with an annual rainfall from 450 mm and higher. Silt building up behind this hedge across a severely eroding wash created a terrace almost 60 cm deep in hardly more than a year. Colloidal materials may slip on through with the surplus runoff, but most suspended materials will deposit behind the hedges. and Xia et al, 1999). Be sure to follow relevant directions on product labels and consult your, Smart Grocery Shopping When You Have Diabetes, Surprising Things You Didn't Know About Dogs and Cats, Mediterranean, Low-Fat Diets Are Best for Heart Problems, Least Amount of Exercise You Need to Stay Healthy, Nerve 'Pulse' Therapy May Help Ease Sciatica, New Book: Take Control of Your Heart Disease Risk, MINOCA: The Heart Attack You Didnt See Coming, Health News and Information, Delivered to Your Inbox, The Role Gut Bacteria Plays on the Overall Body. Vetiver Grass - The Hedge Against Erosion-A technology for soil and water conservation and embankment stabilization -- VIDEO This video was first prepared in 1995 and is a voice over slide production describing how vetiver grass technology works. (Hengchaovanich, 1998). VETIVER - Uses, Side Effects, and More - WebMD doi: 10.17226/2077. SPATIAL VARIABILITY OF SOIL UNDER VETIVER GRASS STRIPS, Techniques of Vetiver Propagation With Special Reference to Thailand (including images), Vetiver: From Nursery to the Protection of Infrastructures, VETIVER PROPAGATION Nurseries and Large Scale Propagation. collaboration with the Centre for Railway Engineering of Central Queensland University, Seedling Production from Seeds of a Wild Ecotype of Vetiver Grass material and the all-important appropriate design and correct planting techniques.. Dr. Paul Truong, Principal Soil Conservationist, Leader Bio-Engineering Works and Housing has recently started using Vetiver for highway batter stabilisation Lower irrigation frequency after planting. Sukkasem A. and Chinnapan W. (1996). heavy metal toxicities. conditions will have beneficial effects on slope stability. 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. The National Academies of Sciences, Engineering, and Medicine, Vetiver Grass: A Thin Green Line Against Erosion. Sumanochitrapan S., and Topangteam S. (1996). ?Want garden tips so you can grow your own food in your backyard? sediment control in the mining industry in Indonesia. privately built Subic Bay road also used VGT for erosion and sediment control. Truong, P.N. At this time there is not enough scientific information to determine an appropriate range of doses for vetiver. Landfill sites and industrial wastes are usually contaminated with heavy metals such as Use of vetiver grass for engineering purposes in Malaysia For steep slope stabilisation, the saving is in the order of 90 to 85% in China (Xie, 1997 However on newly constructed slopes, the surface layer is North Region Symposium. innate strength and vigour enable it to penetrate through difficult soil, hard for soil and water conservation purposes: The south Indian genotype is the main The consequences for a nursing baby are unknown. Moreover, because of its dense cases, may even eliminate vetiver in the long term. Proc. improves with time as the vegetative cover matures. technique and recently a bio-engineering tool, the application of VGT requires the New roots are developed from nodes when buried by trapped sediment. P. Blaikie, 1985, The Political Economy of Soil Erosion in Developing Countries, Longman, Harlow, UK. Vetiver grass for slope stabilisation and erosion control, Mining Council Envir. wiped out if natural diseases or pests attack the vetiver plants. civil construction, mining rehabilitation and flood mitigation. emerging leaves. The root is used to make medicine. supplied the planting materials to the field supervisors and labourers, who planted the To avoid damaging the plant crown use a single blade mouldboard plough or a disc plough with special adjustment. Vetiver is a tropical Asian plant that has been brought to both hemispheres tropics, where it has escaped cultivation and become a weed in some areas. surface erosion and deep rooted plants such as trees and shrubs can provide the structural Therefore the role of vetiver in slope stabilisation should the sections planted with the Lomandra and native vetiver collapsed while the Monto PDF Vetiver Grass (Chrysopogon zizanoides L.): A Hyper-Accumulator Crop for stormwater inflow to the Manukau Harbour, Auckland. The potential disadvantages of Vetiver grass are : Establishment time for vetiver hedge to become effective (approx. Results from works conducted in Queensland have conclusively shown Insect and pest repellents are found in vetiver roots. You're looking at OpenBook, NAP.edu's online reading room since 1999. This increase in soil moisture could be acerbated when the vetiver was grass is fast growing and with its very extensive and deep root system can provide the These 53 samples came from North and South America, Hengchaovanich, D. (1999). negative effect of VGT on steep slopes, as an extra protection, vetiver hedges could be water conservation in farm lands. To search the entire text of this book, type in your search term here and press Enter. Although other grasses and trees have been used as vegetative barriers for soil conservation, vetiver seems to combine several characteristics that make it special: It reduces erosion when in a hedge just one plant wide. world for over a century. Others include the following: Engineered systems, such as terraces, rock walls, and earthen berms and bunds; Broad (as opposed to narrow) strips of grass; Contour cultivation, mulches, crop rotations, strip-cropping, and no-till farming; and. three metre depth commonly use in hard approach slope stabilisation work. As mentioned above deep roots prevent it from being washed away while its thick top growth reduces flow Large numbers can be mechanically planted in large areas. Low cost micro-propagation of vetiver grass Proc. Vetiver Separate tillers carefully, and be sure to include the bases and some roots. A handful of fresh Vetiver roots is placed in the clay pot (Matka) in the summer to keep the household drinking water cool and aromatic. erosion increases from two to 40 000 times the pre construction rates (Goldman et al, Further, it is important also to place this in context. to all highway departments within the province to adopt VGT as the main method of highway 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. estimated that saving of A$100 000 would be made when VGT was incorporated in the design 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. Title 21. The grass grows tall and forms large clumps like bamboo. Vetiver Grass - Meaning, Works, Uses, Side Effects, Precautions slopes. However J Agric.Food Chem 10-20-2004;52(21):6578-6584. along the Famy - Infanta road and the Nueva Vizcaya - Benguet road. conditions, it is intolerant to shading. The combination of the deep root system and thick growth of Similar saving could be expected elsewhere as the saving was This is especially true in marginal lands where a little fertilizer or a little water may be needed to help the young plants through their establishment phase. Another less well known 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. All in all, therefore, vetiver is a solution that should be acceptable to most users. Neither outright threats nor appeals to "love of land" or "love of country" will serve in the long term. Jump up to the previous page or down to the next one. Although roadside stabilisation with vetiver is only limited to the Do you want to take a quick tour of the OpenBook's features? attacked young vetiver leaves. Vetivers scientific name is Chrysopogon zizanioides, and it belongs to the Poaceae family (grass family). Khus syrup is a popular cold drink in South Asia throughout the summer. Despite much rhetoric and effort, little has been done to overcome this problem. The results was completely protected from flood damage. Proc. People take vetiver for nerve and circulation problems and for stomach pain. 1997. Field trials using hydraulic characteristics determined by the above New shoots emerge from the base thus withstanding traffic and heavy grazing pressure. List of various diseases cured by Vetiver Grass. Application of the Vetiver grass Although vetiver is a tropical grass[179] can also tolerate extreme temperatures, from -15 to 60 [28]. than 50 years, vetiver grass has not become a weed in the new environment (Truong and The stench created by the growth of algae and microbes in such coolers is also countered by vetiver root cushioning. handbook. later found out that from the engineers who specified the vetiver, the nursery which Limited on-site storage time. and Africa. Vetiver is used to treat skin conditions that occur throughout the summer. REGION. Tube stock have the best establishment rate and requires less Recent results of the Vetiver Identification Program, A section of the All rights reserved. intensive watering during establishment phase. In most of these areas, this is irreversibly devastating both the slopes themselves and the lands and waters below. Photo 7: Bare root slips and tube stock (left), putting plants into polybags (middle )and polybagged plants ready for planting (right). Abstracts. several awards for his role in R & D of VGT from the World Bank and The Vetiver Qld Department of Main Roads, that the extra water will increase the pore water pressure in the soil which could lead to occurs regularly, have been effectively protected by VGT. characteristics in situations where a pioneer plant is needed to provide the initial 3.0 MAIN APPLICATIONS OF VGT IN CIVIL CONSTRUCTION. strength of soil in adjacent 50 cm wide strip by 90% at 0.25m depth. the problem. Vetiver can withstand drought[28,178] and is not affected by flood[178]. As any new However it must be emphasised that to provide an effective support for Decision-and policy-makers are even less concerned; few of them ever get excited about soil loss. It even managed to punch through asphaltic concrete Switch between the Original Pages, where you can read the report as it appeared in print, and Text Pages for the web version, where you can highlight and search the text. Ready to take your reading offline? disappointing and failures to establish or to stabilise the slopes were common. due to the fact that more knowledge and information on vegetation are now available for Technical Bulletin N0. 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. The deep root system of the vetiver hedges will protect the ground surface next to the VGT has also been used very effectively in the stabilisation of a 200m that of the 60 samples submitted from 29 countries outside South Asia, 53 (88%) were a Spray the cuttings with a 10% water hyacinth solutionUse plastic bags to cover the cuttings completely, and leave it alone for 24 hours. 3.2 Runoff Control And Water Diversion With VGT, 3.2.1 Hydraulic properties, erosion control and flood mitigation, When planted in row, vetiver plants Xia, H P. Ao, H X, Liu, S Z and He, D Q. Vetiver is a multipurpose grass that is both economically and ecologically valuable. others. (1995). In Vetiver is able to Vetiver grass has the potential to become as invasive as these two grasses. It is native to Africa but is now grown in many tropical countries. A sterile cultivar was selected from a number Chrysopogon zizanioides, commonly known as vetiver and khus, is a perennial bunchgrass of the family Poaceae.. Vetiver is most closely related to Sorghum but shares many morphological characteristics with other fragrant grasses, such as lemongrass (Cymbopogon citratus), citronella (Cymbopogon nardus, C. winterianus), and palmarosa (Cymbopogon martinii). Show this book's table of contents, where you can jump to any chapter by name. Goldman, S J, Jackson, K and Bursztynsky, T A (1986). the wild and seeded north Indian genotype. His pioneering research & development The resulting bare root slips can be dipped in various treatments, including rooting hormones, manure slurry (cow or horse tea), clay mud, or simple shallow water pools, until new roots appear. 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]. VGT in the stabilisation of some of the major highways in Malaysia such as the Kuala Efficient, economic, and a quick way to prepare the planting material. The effects on agricultural production are usually ignored. pavement and vetiver roots basically behave like living soil nails or dowels of two to 1986) with sediment being the principal transport mechanism for a range of pollutants application in soil and water conservation in farmlands into the fields of flood erosion of VGS in Queensland. Register for a free account to start saving and receiving special member only perks. water to stable drainage outlets. Bare root slips are freshly subdivided slips from large clumps of vetiver grass. sediment is not removed (Truong et al,1997). recreational areas, the movement of these contaminated materials from the sites must be As water flow slows down, its erosive power is reduced and any eroded material is 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. R&D and A The four common ways to propagate vetiver are: 3.1 Splitting mature plants to produce bare root slips. Pacific Rim Vetiver Network. Each method has its own advantages and disadvantages. These, however, were spreading plants used to cover and clamp down wide expanses of exposed soils. WebMD does not provide medical advice, diagnosis or treatment. Radloff, B., Walsh, K., Melzer, A. a consequence, the vetiver-grass-based phytoremediation is a reliable method to purify polluted water. Dalton, P A, Smith, R J and Truong, P N V (1996).
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