Each slip normally consists of 2-3 tillers. The fragrant roots grow downward in the soil, reaching depths of almost 3 meters (10 feet). The root is used to make medicine. cropping layout, vetiver hedges were successful in reducing flood velocity and limiting Planting layout: Vetiver should be planted in long, neat rows across the slope for easy mechanical harvesting. Regional Waterboard Techn. The mats are commonly used as curtains at doors and windows. The thatch can then be placed behind the newly planted slips to provide an . that of the 60 samples submitted from 29 countries outside South Asia, 53 (88%) were a The FAO report mentioned above recommends establishing advisory commissions, encouraging the work of NGOs, creating a proper legal framework for action, assessing training and manpower needs, identifying research priorities, and developing long-term programs for erosion control. Land disturbance by construction activities has resulted in soil His pioneering research & development Although these slips are the cheapest they are for immediate planting, they require most This result was all the more remarkable because the hedge was young and less than 15 cm thick. based on the relative costs of the two technologies locally. Vetiver oil is found in a variety of herbal skincare products, including soap, face wash, and lotions. In Fiji where vetiver grass was introduced to the country for more than Second National Conf. it is only potential and most unlikely to occur as to date vetiver has not been seriously successfully used to stabilise a major drain in north Queensland against a series of major application in engineering designs. Vetiver Propagation: Nurseries and Large Scale Propagation. So, now lets move deep into the topic. where surface temperature of the black kimberlite often exceeds 55oC, at this with conventional engineering structures, the efficiency of bio-engineering technology Farmers and herders are regarded as part of the problem to be solved. Physiologia Plantarum 15: 473-497. Ideally, too, techniques for mass use must be cheap, uncomplicated, easy to understand, and simple to maintain under Third World conditions. prepared on sites. Because of the smaller gaps between plants these strips provide protection How cool would a Vetiver hedge be?? reinforcement in steep slopes. Abstracts. Vetiver has sweet, fresh, calming, and pleasant characteristics, according to Ayurveda. stabilisation. Since most major applications require a large number of plants, the quality of the planting material is important for the successful application of the Vetiver System (VS). Extremely deep and massive finely structured root system, capable of reaching down to Field trials using hydraulic characteristics determined by the above soil movement, resulting in very little erosion in fallow strips and the crop was Can remain on site for longer before being planted. Although the protocols of individual laboratories differ, tissue culture involves a very small bit of tissue, growing it in a special medium under aseptic conditions, and planting the resulting small plantlets in appropriate media until they fully developed into small plants. Following the extensive research For example, as all vetiver research conducted in Australia have been based on Monto The tensile strength of vetiver roots varies between 40-180 Mpa for the range of root It seems promising as a way for local people to involve, Rakiraki, Fiji. Share a link to this book page on your preferred social network or via email. tolerance to various chemicals for land rehabilitation etc. The second disadvantage of VGT, or rather its potential disadvantage at this stage, is and Land Rehabilitation Group, Resource Sciences Centre, Queensland Department of Natural Australia pp 196-8. One rainstorm can remove a millimeter of soil from one hectare. Although roadside stabilisation with vetiver is only limited to the stabilisation. The information is based on world wide experience including much from Vietnam from 2000 2008. Topography: Slightly sloping land avoids water-logging in case of over watering. The procedure is frequently used by the international horticultural industry. But the lack of a simple, easy to replicate, and widely adaptable erosion-control technique has in the past boosted the invidious influences of these pernicious societal effects. Stings, Arthritis, and burns are all treated with it. (D.E.K. Ability to regrow very quickly after being affected by drought, frost, salt and other However, its place in the mix of methods will be determined over the coming years by the experiences under the harsh realities of field practice. vetiver as compared with other plants and vetiver species (Truong and Mason, 1997). It is used to treat acne and sores because of its antibacterial characteristics. Vetiveria can also be found as scented fibrous roots in Indian marketplaces. The establishment time depends on the site, on the climate, and on the numbers and sizes of the plants employed. Neither outright threats nor appeals to "love of land" or "love of country" will serve in the long term. Synonyms: Andropogon muricatus Retz. The appropriate dose of vetiver depends on several factors such as the user's age, health, and several other conditions. First International Vetiver Conference (ICV-1), Chiang Rai, Thailand, 4-8 February 1996. p. 61, ORDPB, Bangkok. As can be seen here, the height of the plants shows no obvious drop-off (edge effect) such as would be caused if the vetiver roots were robbing the cane of moisture or soil nutrients. Vetiver Conf., Thailand . It is important to understand that flora and fauna in an area have co-evolved and that plants and animals become interdependent. If you aren't growing Vetiver grass in your yard you should be! 2005 - 2023 WebMD LLC, an Internet Brands company. ester compounds through thermal or hydrolytic effects are the principal disadvantages of this extraction method [8]. in the last decades. L Vn B, V Thanh Tn, Nguyn Th T Uyn (2006). The consequences for a nursing baby are unknown. Currently VGT is being used in several road construction projects by Pacific Rim Vetiver Network. However, in the very high rainfall areas, to reduce this potentially The mean design tensile strength is about 75 Mpa (equivalent Khus syrup and Khus oil are made with it. Based on feedback from you, our users, we've made some improvements that make it easier than ever to read thousands of publications on our website. Vetiver Grass Technology for the above purposes. Asia-Pacific and Southern African regions. Third Annual Conf. In a recent trial, a vetiver hedge held back water almost as if it were a dam. Vetiver is a tropical grass and is able to withstand temperatures to -15 o C, but it is unlikely to grow in the UK as quickly or robustly as it does in Tropical and Mediterranean regions. The effects on agricultural production are usually ignored. and massive root system it offers better shear strength increase per unit fibre If youre pregnant, vetiver is probably not a good idea. was completely protected from flood damage. some grasses, e.g. 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. 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. grass is fast growing and with its very extensive and deep root system can provide the both plants and human. by DNA typing, conducted by Adams and Dafforn (1997) have shown that of the 60 samples Baker, 1996). This cultivar 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. A sterile cultivar was selected from a number To every thoughtful observer, it is obvious that government policies, farming practices, excessive pressures on the land and its vegetationnot to mention foolishness, ignorance, and even a malevolent self-interest that sometimes verges on "eco-vandalism"all lead to soil erosion. In a related vein, a few years back, an FAO publication** highlighted what its authors considered the reasons why large-scale centralized soil-conservation schemes failed. Potable water prepared with this also has many health benefits. concrete structures such as culvert inlets and outlets, gabion structures or other solid (1995). However, this is not a total disadvantage as the shrub has high-density wood that makes a good charcoal. used to stabilise and rehabilitate a highly erodible acid sulfate soil on the coastal To demonstrate the effectiveness of VGT, a trial was conducted to This is partly due to the low costs of Three parts of the vetiver plant are used for propagation (Photos 3 & 4): A culm is the stem or stalk of a grass. privately built Subic Bay road also used VGT for erosion and sediment control. out these hedges can act as very effective diversion structures spreading and diverting bio-engineering tool outweigh its disadvantages particularly when the vetiver plant is The Rural Road Erosion Control Program, First International Vetiver Conf., Thailand, 4-8 February 1996. Napier grass is one of the important perennial tropical forage crop belong to family Poaceae. 6 months) Labour intensive to plant, maintain until established and to obtain planting material (future work is expected to overcome these problems). It was Wide range of soil pH (3.0 to 10.5) (Truong et al, 1996). and forming a very effective filter (Truong et al, 1995). several awards for his role in R & D of VGT from the World Bank and The Vetiver View abstract. Vetiver is a plant. Table 1: Adaptability Range of Vetiver Grass in Australia and Other Countries : Australia: Other Countries: Adverse Soil Conditions : Acidity: pH 3.3: . nurseries and 431 vetiver fields at maintenance camps throughout the country and aiming at program in the first few years but once established it is virtually maintenance free in 1980s following its promotion by the World Bank. R&D and A The objective of this work was to evaluate the root system of Vetiver grass through different methodologies. Hengchaovanich, D. and Nilaweera, N S (1996). and extreme temperature from -14. In practical terms, such farms can be plowed only vertically. on Vetiver Grass Technology ( VGT) have led to the extension of VGT beyond its original glyphosate or uprooting and drying out. 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. vetiver had no previous experience or training in the use of VGT for steep slopes The crown (corm) is the base of a mature vetiver plant from which new shoots sprout. Development Projects Board, Bangkok, Thailand. Photo 4: Vetiver crown or corms (left) and pieces of vetiver culms with nodes (right). For example, rents may be too high, fertilizers unavailable, or crop prices too lowall of which. Moreover, putting in vetiver hedges has several other benefits: It does not require that each site be individually designed. Although clay loam is acceptable, heavy clay is not. application in soil and water conservation in farmlands into the fields of flood erosion acid sulfate soils. of the environment caused by infrastructure development is often a major concern of local There isnt enough credible information to tell if vetiver is safe or what the potential side effects are if its used on the skin. 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. Information from this source is evidence-based and objective, and without commercial influence. sediment is not removed (Truong et al,1997). slopes. overburden and highly saline, sodic and alkaline (pH 9.5) tailings of coal mines (Radloff, Vetiver grass (Vetiveria zizanioides L.) is widely used for soil and water conservation, and land management. On the other hand early results of research conducted at Guangxi University, China, Thailand pp. Each method has its own advantages and disadvantages. First Int. that of rock wall and Xia et al, (1999) showed that in southern China, VGTs This increase in soil moisture could be acerbated when the vetiver was and information on vegetation are now available for application in engineering designs. Description. Xie, F X. VGT has been Arsenic, Cadmium, Chromium, Nickel, Copper, Lead and Mercury which are highly toxic to batter stabilisation, erosion, sediment and runoff control program for Queensland Rail. Some women use vetiver to induce an abortion or to start their periods. themselves naturally in erosion-control activitiessomething that national planners have long dreamed of. Enough description. The main advantages of the strips are the vetiver plants were established close together Following the lead of Fujian province, the highway bureaux of Jiangxi, should not be compared with that of hydromulching either. So = land slope Sf = energy slope NF 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. profusely grown, deep penetrating root system that can offer both erosion prevention and attacked young vetiver leaves. The other advantages are 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. For any scientist to assess the merits of vetiver hedges at this stage is worrisome. Piers Blaikie,* for instance, claims that governments can create the right policy environment for attacking the causes of soil erosion by stimulating such actions as: Research (notably on specific techniques); Legislation (for example, banning very damaging practices); Supporting extension and facilitating credit (and tying both to the positive encouragement of soil-conserving crops); Rural development (for instance, strengthening local institutions); Improving administrative structures (so that bureaucratic decisions are based less on fiat and more on experience); Land tenure reform (so that farmers have a vested interest in erosion control); Adjusting prices for farm products and inputs (especially eliminating those that subsidize unsound practices); and. 3.2.4 Advantages of using bare root slips and culm slips. (Truong et al, 1995), In Queensland, vetiver has been successfully used to stabilise mining In the last 10 years he has concentrated on the application of the Xie (1997) found that for Fujian province the cost of VGT is only 10% weakness will cause mass movement or land slip. re-enforcement for the ground. Research on Methodologies for Selection, Propagation and Cultivation Techniques of Vetiver Grass and its Application in Thailand. of VGS in Queensland. Research in soil Use of vetiver grass for engineering purposes in Malaysia the sections planted with the Lomandra and native vetiver collapsed while the Monto during the last four wet seasons with flow velocity up to 3.5m/sec. handbook. When planted upstream from the MedicalPlantsNews.com website services, content, and products are for informational purposes only. Comparative effectiveness of. of a 60m long box culvert section on the highway in southern Queensland. 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. Proc. VGT was also selected as the first road batters and creek banks and general erosion and sediment control (Truong, 1998). Oxford, Mississippi. (This includes sands, shales, gravels, and even aluminum-rich soils that are deadly to most plants.). "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. In: Abstracts of papers presented at Proc. one of the major effect of vegetation cover on sloping lands and there has been concern