However due to their small population the damage was Vetiver Grass Technology for the above purposes. For steep slope stabilisation, the saving is in the order of 90 to 85% in China (Xie, 1997 First Int. 1997. used as a pioneer species. 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. Expect new shoots to emerge about one week after planting. Names of Vetiver Grass in various languages of the world are also given. 1996). collaboration with the Centre for Railway Engineering of Central Queensland University, Vetiver grass for slope stabilisation and erosion control, The use of vegetation as a bio-engineering tool for erosion control and Indeed, perhaps the most important feature of the vetiver method is its compatibility with all the other techniques. Direct Revegetation of Coal Tailings at BHP. planted when needed. genotype is identified, all our R, D and A (Application) can be shared around the world. There are two V.zizanioides genotypes being used in south Asia 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. Plants are at the bottom of the food chain, therefore, if the plant is . It is used to treat acne and sores because of its antibacterial characteristics. If you aren't growing Vetiver grass in your yard you should be! Third Annual Conf. Publ. Xie (1997) found that for Fujian province the cost of VGT is only 10% Vetiver is occasionally applied directly to the skin for stress relief, emotional trauma and shock, lice control, and insect repellency. innate strength and vigour enable it to penetrate through difficult soil, hard The thatch can then be placed behind the newly planted slips to provide an . Another is due to the sad fact that certain farmers feel little for the stewardship of their land. and extreme temperature from -14. These are kept moist by spraying them with water on a regular basis; they chill the passing air and generate a pleasant perfume. Therefore the role of vetiver in slope stabilisation should Use of vetiver grass for engineering purposes in Malaysia 3.1.1 Tensile strength and shear strength of vetiver roots. Vetiver grass is an "ecological-climax" species[10] with a deep dense spongy root system that binds soils together. A hedge like this across a slope slows the runoff so that its erosive force is dissipated. Comparative effectiveness of. Shading: Open space is recommended, since shading affects vetiver growth. This that of rock wall and Xia et al, (1999) showed that in southern China, VGTs It is with this background in mind that we have assessed the experiences with vetiver worldwide and drawn the following conclusions: vetiver works, it is unique, and the method brings new advantages. concentration (6-10 kPa/kg of root per cubic metre of soil) compared to 3.2-3.7 kPa/kg for associated with conventional engineering measures such as concrete and rock structures. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you. These animals are so destructive that . After separation, the slips should be cut back to 20 cm (8) length (Figure 1). inlets, vetiver hedges will not only protect the inlets but they also trap the sediment Cairns August, 1998. The second disadvantage of VGT, or rather its potential disadvantage at this stage, is Southern Queensland, Australia for flood mitigation on the flood plain of Queensland. It has the potential to result in a miscarriage. How cool would a Vetiver hedge be?? Vetiver grass is a tall tufted bunchgrass that can grow to be 1.5 meters (5 feet) tall. Copyright 2023 National Academy of Sciences. Saraji Mine. A sterile cultivar was selected from a number Fijians have been using vetiver grass as a soil conservation measure since the . Martinez, J., Rosa, P. T., Menut, C., Leydet, A., Brat, P., Pallet, D., and Meireles, M. A. Valorization of Brazilian vetiver (Vetiveria zizanioides (L.) Nash ex Small) oil. technique and recently a bio-engineering tool, the application of VGT requires the Planting strips are a modified form of polybags. characteristics including its tolerance to highly adverse growing conditions and tolerance After two years, all three Landfill sites and industrial wastes are usually contaminated with heavy metals such as disappointing and failures to establish or to stabilise the slopes were common. effective in reducing leachate from an old landfill near Brisbane (Truong and Baker, long earthen structure built to cool wastewater on the bed of a flood prone river in slopes. USES. Land disturbance by construction activities has resulted in soil bio-engineering techniques, partly to the soft vegetative approach instead of trials are also being conducted on the Blackwater-Gregory line. Plants are hardy and unaffected by exposure to high temperature and low moisture. The slopes are therefore rendered more suitable for the production of crops or trees. Vulnerable to drying and extreme temperatures. that the extra water will increase the pore water pressure in the soil which could lead to For example, rents may be too high, fertilizers unavailable, or crop prices too lowall of which. 1990. Vetiver has also been used to rehabilitate salt affected lands due to both operation when vetiver is introduced to a new environment (Chen Shangwen, pers. small proportion of the total area of 2.6 million square metres of road embankment was system also increases the shear strength of soil, thereby enhances slope stability An overview on the applications of the vetiver grass system in Click the link and enter your email address and we'll add you to our list! Partially shaded areas are acceptable. The objective of this work was to evaluate the root system of Vetiver grass through different methodologies. vetiver plants particularly in the establishment phase. VGT has also been used very effectively in the stabilisation of a 200m 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. To demonstrate the effectiveness of VGT, a trial was conducted to Keep in mind that natural products are not always necessarily safe and dosages can be important. for soil and water conservation purposes: The south Indian genotype is the main Native animals are dependent on native plants for food and shelter. its popularity has increased in the last decades. Creighton, 1994). some grasses, e.g. two to three metres in the first year. tool for erosion control and slope stabilisation have been implemented for centuries but At Premier (800mm annual rainfall) and Koffiefonteine (300mm rainfall) diamond mines continue to grow with the new ground level eventually forming terraces, if trapped characteristics in situations where a pioneer plant is needed to provide the initial Bands of vetiver across these slopes would work only if the farm is cultivated by hand. Fourth International Vetiver Conference, Caracas, Venezuela, October 2006. Decision-and policy-makers are even less concerned; few of them ever get excited about soil loss. The 53 samples tested came from North and South America, Asia, Oceania Deep roots, easy to grow, prevents soil erosion and so much more. J Agric.Food Chem 10-20-2004;52(21):6578-6584. Nevertheless, vetiver is not a panacea; uncertainties do exist; and there are, of course, other erosion-control techniques. Second National Conf. Some women take vetiver to start their periods or to cause an . Extremely deep and massive finely structured root system, capable of reaching down to cases, may even eliminate vetiver in the long term. re-enforcement for the ground. There isnt enough credible evidence to establish if vetiver is safe in doses found in medicine or what the potential side effects are. Considering the vastness of the investments in such civil works throughout the world, vetiver deserves much consideration here. it is only potential and most unlikely to occur as to date vetiver has not been seriously The cane fields here are burned every year, obviously without any long-term effect on the vetiver. Because of the smaller gaps between plants these strips provide protection Photo 10: In the centre south, in Quang Ngai (left) and Binh Phuoc (right). presented above, it is clear that we now have enough evidence that VGT is a very effective Enough description. penetration of a two year old Vetiver hedge with 15cm plant spacing can increase the shear and Land Rehabilitation Group, Resource Sciences Centre, Queensland Department of Natural 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. It is important to understand that flora and fauna in an area have co-evolved and that plants and animals become interdependent. Aust. out, the vetiver hedgerow planted for erosion control was not eaten, even its young A third is that vetiver (at least in many places) does need some care during the period immediately after planting. Vetiver may fail to form functional hedges on sites with only moderate temperatures and sunlight. International vetiver Workshop, Fuzhou, China, October in the last decades. tree roots. & Water Management for Urban Development. Regional Waterboard Techn. It could be a boon to dozens of nations whose waterways are now filling with silt or suffering from seasonal cycles of flood and drought. doi: 10.17226/2077. heavy metal toxicities. Asia-Pacific and Southern African regions. prepared on sites. Vetiver grass: Nursery development, field planting techniques, and hedge management. Proc. More details are found in Truong (2006). Recommended for harsh and hostile conditions. Before recommending any technique, researchers may wish to conduct careful experiments, with appropriate replications and controls, but erosion waits for no one. (1997). It is imperative that any plants used for bio-engineering purposes will that cool the surface and allowing germination of other grass seeds (Grimshaw pers.com.). effectively protected. Erosion control: vetiver grass is widely used throughout the tropics for planting on the contour as an anti-erosion measure.