structural strength needed in a relatively short period of time. Vetiver grass is a unique tropical and sub-tropical plant species originally from India, but which now exists in over 100 countries around the world. There isnt enough credible evidence to establish if vetiver is safe in doses found in medicine or what the potential side effects are. This is particularly important in urban and semi rural areas where the visual degradation In Zimbabwe, VGT has been extensively used for the maintenance of P. Blaikie, 1985, The Political Economy of Soil Erosion in Developing Countries, Longman, Harlow, UK. It is important to understand that flora and fauna in an area have co-evolved and that plants and animals become interdependent. This requires nurseries capable of producing large quantities of high quality, low cost plant materials. It is capable of growing in a wide range of climates: for example, where rainfall ranges from 300 mm to 3,000 mm and where temperatures range from slightly below 0C to somewhere above 50C. Vetiver System Technology, which is based on Vetiver grass (Chrysopogon zizanioides L. Roberty) has been successfully used as a phytoremediation tool to remediate both polluted water (municipal . Aust. slope instability. These, however, were spreading plants used to cover and clamp down wide expanses of exposed soils. FAO, Rome. Vetiver grass for slope stabilisation and erosion control, 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. Application of the Vetiver grass 8.0 PLANTING MATERIALS AND THEIR SUITABILITY. Publ. characteristics already mentioned. The adverse effects of vetiver grass or khus grass are the following: Jeera Water Health Benefits, Side Effects, Honey for Weight Loss Benefits, Uses, Risks, Lemon Nutrition, Benefits, Intake, Side Effects, Vetiver Grass Meaning, Works, Uses, Side Effects, Precautions, Wheatgrass Meaning, Benefits, Dosages, Side Effects, Precautions. In India, mats fashioned from vetiver roots and bound with ropes or cords are used to cool rooms in a house during the summer. Large numbers can be mechanically planted in large areas. These 53 samples came from North and South America, steep slopes. highway network is expanding rapidly, for example during the 1992-1996, more than. depletion would be greater therefore further improve the slope stabilisation process trials are also being conducted on the Blackwater-Gregory line. In the last 10 years he has concentrated on the application of the Flat site is acceptable, but watering must be monitored to avoid water-logging, that will stunt the growth of young plantlets. If youre pregnant, vetiver is probably not a good idea. Nickel, Copper, Mercury, Lead, Selenium and Zinc (Truong and Baker, 1998, Truong, 1999). Both of these are likely (even certain) to raise the yields of crops and trees on hillsides. botanical classification but it acts more like a tree than a typical grass with its Khus syrup is a popular cold drink in South Asia throughout the summer. Sign up for email notifications and we'll let you know about new publications in your areas of interest when they're released. For steep slope stabilisation, the saving is in the order of 90 to 85% in China (Xie, 1997 Workshop, Fuzhou, China, October 1997. Tolerance of vetiver grass to some adverse velocity and its erosive power. vetiver plants particularly in the establishment phase. Vetiveria can also be found as scented fibrous roots in Indian marketplaces. In addition properly laid out hedges can be designed to supplied the planting materials to the field supervisors and labourers, who planted the Research conducted by Hengchaovanich and Nilaweera (1996) in Malaysia showed that the unique grass in erosion and sediment control in agricultural lands, land stabilisation in program in the first few years but once established it is virtually maintenance free in than 50 years, vetiver grass has not become a weed in the new environment (Truong and common size for vetiver roots. (N. Vietmeyer). Khus syrup and Khus oil are made with it. 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. The grass grows tall and forms large clumps like bamboo. This originated primarily with the use of sweet scented vetiver roots for . Works and Housing has recently started using Vetiver for highway batter stabilisation Vetiver Grass UK is undertaking . The National Academies of Sciences, Engineering, and Medicine, Vetiver Grass: A Thin Green Line Against Erosion. Research in soil DNA fingerprints (RAPDs) of the pantropical grass. Sydney pp 214-222. It has been transported globally and used by man in various ways for over 5,000 years, because of its wide range of uses. Land Management. River and drainage channel banks in tropical Australia where flooding self sustainable growth on kimberlite spoils. The four common ways to propagate vetiver are: 3.1 Splitting mature plants to produce bare root slips. For the last three years, VGT has been used as a major component of a However, in the very high rainfall areas, to reduce this potentially later found out that from the engineers who specified the vetiver, the nursery which Some women use vetiver to induce an abortion or to start their periods. Tissue culture, using a small part of the plant to propagate on a large scale. New roots are developed from nodes when buried by trapped sediment. Put plants into 20 litre plastic bag, and tie it closed. All rights reserved. Proc. in China when the Guiyang variety is used. operation when vetiver is introduced to a new environment (Chen Shangwen, pers. Vetiver (Chrysopogon zizanioides), often known as khus, is a Poaceae perennial grass whose roots yield an oil used in perfumes. Wearing a hat or cap made with Vetiver fiber shields you from the suns harsh rays. It is cheap and usually easy to establish, and the hedges are easy to maintain. Colloidal materials may slip on through with the surplus runoff, but most suspended materials will deposit behind the hedges. Separate tillers carefully, and be sure to include the bases and some roots. It even managed to punch through asphaltic concrete However, vetiver is not like a lawn or pasture species; it is a big, coarse, very tough bunch grass and it grows to about 1 m wide at the base with a clustered mass of dense stems. erosion and slope stabilisation in highway engineering. Figure 1: Hydraulic Model of Flooding Through Vetiver. In a soil block shear test, Hengchaovanich and Nilaweera (1996) also found that root ester compounds through thermal or hydrolytic effects are the principal disadvantages of this extraction method [8]. Successful examples of application of VGT for slope stability and at the same time makes it very difficult to be dislodged and extremely tolerant to Malaysia by Hengchaovanich. Regional Waterboard Techn. Failures of VGT in most cases can be attributed to bad applications When established as an alternative to strip Vetiver grass is a perennial grass with a height and depth of 2 m and 3 m, respectively, which can be effectively applied to absorb soluble nutrients consisting of nitrogen, phosphorus, as well as heavy metals, such as zinc, copper, nickel, chromium, and lead [22,23]. . The Rural Road Erosion Control Program, The second disadvantage of VGT, or rather its potential disadvantage at this stage, is If you aren't growing Vetiver grass in your yar. It does not require foreign exchange or expensive equipment. subtropical Australia. A sixth is that on very shallow soils, where no plant could anchor its roots deeply, rushing runoff might undermine the vetivers and wash them away. agricultural lands, vetiver grass unique morphological, physiological and ecological Resources, (Paper prepared for the First Asia-Pacific Conference on Ground and Although roadside stabilisation with vetiver is only limited to the waterways to even out the flow of runoff throughout the year. Thus, developing an alternative rapid, sensitive . 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. later. Dense hedges when planted close together, reducing flow velocity, diverting runoff water 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 . Given what we know today, vetiver seems a potential breakthrough, but such a radical concept raises uncertainties as well. The mature hedge will form a living porous barrier which slows and spreads runoff The root is used to make medicine. of vetiver hedges under deep flow were determined by flume tests at the University of 2.0 SOME SPECIAL CHARACTERISTICS OF VETIVER GRASS. primary roads (21 500km) and gabion stabilisation. 4.2.1 Advantages and disadvantages of polybags and planting strips. some grasses, e.g. 0.6m, forming a living barrier which slows and spreads runoff water. Dalton, P A, Smith, R J and Truong, P N V (1996). To search the entire text of this book, type in your search term here and press Enter. Secondly, as with floods in the area in the last two years. barriers from scouring and erosion by high velocity flows. Its known in India as Khus attar, a traditionally intense perfume, particularly for men. 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. Water Bio-engineering, Manila April 1999), KEY WORD: Vetiver grass, erosion and sediment control, runoff, land Share a link to this book page on your preferred social network or via email. application in soil and water conservation in farmlands into the fields of flood erosion but trees are slow and often difficult to establish on such hostile environment. It does not appear to compete seriously with neighboring crop plants for the moisture or nutrients in the soil. In dietary proportions, vetiver is pretty much safe. Hengchaovanich, D. (1999). Office of the Royal This dark green syrup with a woody flavor relieves stomach burning caused by Pitta in the summer. Photo 9: In the south, left: Can Tho University; right: An Giang province. used as a pioneer species. Register for a free account to start saving and receiving special member only perks. In addition, few farmers are aware of just how much soil they are losing and may have no interest in any erosion-control process. water. (Truong and Baker, 1998). 1998/2. Therapeutic Research Faculty 2020. How Vetiver Grass is effective for various diseases is listed in repertory format. and low cost bio-engineering tool for the stabilisation and rehabilitation of disturbed Vetiver grass (Chrysopogon zizanioides L. Roberty) is one of the most studied and applied species in soil bioengineering techniques all over the world, but there are technical information related to its root system deserving a better comprehension provided by different methodologies'. due to the fact that more knowledge and information on vegetation are now available for For example, rents may be too high, fertilizers unavailable, or crop prices too lowall of which. It is, for example, almost impossible even for strong people to push their fingers through. based on the relative costs of the two technologies locally. Sumanochitrapan S., and Topangteam S. (1996). The consequences for a nursing baby are unknown. Office of the Royal Development Projects Board, Bangkok, Based on the above, it is clear that the advantages of using the VGT as an The mean design tensile strength is about 75 Mpa (equivalent However on newly constructed slopes, the surface layer is Hedges of this deeply rooted species catch and hold back sediments while the stiff foliage acts as a filter that also slows runoff and keeps moisture on site. As mentioned above 3.1Splitting mature plants to produce bare root slips, 3.3Bud multiplication or micro propagation. stabilise the lose surface first so other species can colonise the areas between hedges It is (at least so far) largely free of insects and diseases and does not appear to be a host for any serious pests or pathogens that attack crops. Resource Science Centre, Queensland Department of Natural To get rid of sun rashes, fresh Vetiver roots are put to daily bathing water. Botanical Name - Vetiveria zizanioides (Linn) Nash. Unpublished paper presented at Proc. conditions will have beneficial effects on slope stability. In contrast Goldman, S J, Jackson, K and Bursztynsky, T A (1986). 7.2 Advantages and disadvantages of different planting materials The bare root slips are the cheapest but required splitting the large clumps before planting. Although vetiver grass (Vetiveria zizanioides) has been used for Recommended for good nursery sites with easy access to irrigation. This Vetiver can withstand drought[28,178] and is not affected by flood[178]. First International Vetiver Conference (ICV-1), Chiang Rai, Thailand, 4-8 February 1996. p. 61, ORDPB, Bangkok. occurs regularly, have been effectively protected by VGT. tensile strength of vetiver roots increases with the reduction in root diameter, this (50-70mm apart), and root damages are minimal during planting. innate strength and vigour enable it to penetrate through difficult soil, hard This result was all the more remarkable because the hedge was young and less than 15 cm thick. on land stabilisation, soil erosion and sediment control only started in the late 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. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. & Water Management for Urban Development. Xie, F X. Thus, it is not clear which methods farmers might be willing to adopt. Murashige T., and Skoog F. (1962) A revised medium for rapid growth and bio assays with tobacco tissue cultures. Indeed, perhaps the most important feature of the vetiver method is its compatibility with all the other techniques.
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