disadvantages of vetiver grass

Thailand. control of shallow movement of surfacial earth mass. to the reduction of runoff water and erosion rate. Topography: Slightly sloping land avoids water-logging in case of over watering. Brown D. Encyclopedia of herbs and their uses. All rights reserved. It should be stressed that VGT is a new technology. Xia, H P. Ao, H X, Liu, S Z and He, D Q. continue to grow with the new ground level eventually forming terraces, if trapped To add to the confusion, VGT exploits its different New York, NY:Dorland Kindersley Publ., Inc., 1995. Also, you can type in a page number and press Enter to go directly to that page in the book. 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. Le Van Be of Can Tho University, Can Tho City, Vietnam has developed a very practical and simple method to multiply buds (L Van B et al, 2006). Vetiver includes insect repellent oil. Radloff, B., Walsh, K., Melzer, A. Bands of vetiver across these slopes would work only if the farm is cultivated by hand. Vetiver nurseries have been successfully established in all areas of Vietnam. of vetiver hedges under deep flow were determined by flume tests at the University of Poor land management can result from ignorance ormore oftenfrom economic, social, or political pressures. The cane fields here are burned every year, obviously without any long-term effect on the vetiver. sediment control in the mining industry in Indonesia. very few species can be established due to the hostile environment. several awards for his role in R & D of VGT from the World Bank and The Vetiver For developing nations, soil erosion is among the most chronic environmental and economic burdens. inlets, vetiver hedges will not only protect the inlets but they also trap the sediment collaboration with the Centre for Railway Engineering of Central Queensland University, (1997). Availability of farm machinery: Basic farm machinery is needed to prepare nursery beds, control weeds, cut grass, and harvest vetiver. To prepare rooting hormone from Water Hyacinth: Photo 5: Spraying cuttings with 10% water hyacinth solution (left) and cover cuttings completely with plastic bags, and leave them for 24 hours (right). highways and in different areas of the provinces. slope stabilisation have been implemented for centuries but its popularity has increased civil construction, mining rehabilitation and flood mitigation. In such extreme situations, the hedges can protect the land and trees may perhaps be grown, but farming would likely be impossible. . A fifth is that strips of vetiver across the land may sometimes be a nuisance. . moisture competition in crops in Australia (Dalton, 1997) indicated that under low The following criteria will facilitate the establishment of productive, easily managed vetiver nurseries: Soil type: Sandy loam nursery beds ensure easy harvesting and minimal damage to plant crowns and roots. Both of these are likely (even certain) to raise the yields of crops and trees on hillsides. Plants are hardy and unaffected by exposure to high temperature and low moisture. It is (as mentioned) an especially important adjunct to contour cultivation. The exclusive use of only sterile vetiver cultivars (C. zizanioides) will prevent weedy vetiver from becoming established in a new environment. appreciably. two to three metres in the first year. Vetiver isn't the only erosion-control technique, of course. Discard the solid parts and keep only the solution. agricultural lands, vetiver grass unique morphological, physiological and ecological This information is abstracted from Vetiver Systems Application A Technical Reference Manual. The procedure is frequently used by the international horticultural industry. Thus, it is not clear which methods farmers might be willing to adopt. 2005 - 2023 WebMD LLC, an Internet Brands company. Parameters obtained from recent Bare root slips are freshly subdivided slips from large clumps of vetiver grass. DNA tests prove that the sterile vetiver cultivar used around the world is genetically similar to Sunshine and Monto cultivars, both of which originate in southern India. (D.E.K. How Vetiver Grass is effective for various diseases is listed in repertory format. Stabilisation and rehabilitation of a highly erodible acid sulfate soil on the coastal Vetiver effectively protected. The second disadvantage of VGT, or rather its potential disadvantage at this stage, is tests showed that vetiver hedges were successful in reducing flood velocity and limiting adequately controlled. Mechanical planter: A modified seedling planter or mechanical transplanter can plant large numbers of vetiver slips in the nursery. Vetiver is not a panacea; it cannot solve all the problems. Div. system also increases the shear strength of soil, thereby enhances slope stability Faster establishment and growth after planting. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version. Colloidal materials may slip on through with the surplus runoff, but most suspended materials will deposit behind the hedges. Vetiver can withstand drought[28,178] and is not affected by flood[178]. was completely protected from flood damage. When established as an alternative to strip Multiple Benefits of The Vetiver System and Its Environmental bio-engineering tool outweigh its disadvantages particularly when the vetiver plant is The plant is used in dryland restoration to reduce soil erosiveness and is sometimes planted as a hedge. surface erosion and deep rooted plants such as trees and shrubs can provide the structural The leaves of some types of vetiver have sharp edges, which makes them a further nuisance. Recommended for harsh and hostile conditions. 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. Dr. As a soil conservation Tissue culture, using a small part of the plant to propagate on a large scale. Hengchaovanich, D. (1999). MyNAP members SAVE 10% off online. Its environmental consequences, already grave, are getting more serious each day. bio-engineering technique for revegetation and slope stabilisation of highways and rivers To increase the establishment rate under hostile conditions, when the plantlets produced by the Upper methods are mature enough or bare root slips are ready, they can be prepared for planting out by: Plantlets and bare root slips are planted in small pots or small plastic bags containing half soil and half potting mix and maintained in the containers for three to six weeks, depending on the temperature. The main advantages of the strips are the vetiver plants were established close together glyphosate or uprooting and drying out. Vetiver may fail to form functional hedges on sites with only moderate temperatures and sunlight. Preparation requires a longer period to prepare, four to five weeks or longer. the genetic uniformity of the planting material. Before donning these hats in the midday sun, a little water is sprinkled on them to protect them from sunstroke. where surface temperature of the black kimberlite often exceeds 55oC, at this supplied fresh for planting within a week. soil movement, resulting in very little erosion in fallow strips and a young sorghum crop This cultivar Third Annual Conf. Uses, Benefits, Cures, Side Effects, Nutrients in Vetiver Grass. Vetiver is used to treat nerve and circulation issues, as well as stomach pain. 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 growing information - Green Harvest 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. Vetiver - Vetiveria zizanioides Uses, Research, Side Effects its effectiveness in erosion control in Fiji. Clonal propagation of vetiver in vitro. You're looking at OpenBook, NAP.edu's online reading room since 1999. small proportion of the total area of 2.6 million square metres of road embankment was There isnt enough credible evidence to establish if vetiver is safe in doses found in medicine or what the potential side effects are. Share a link to this book page on your preferred social network or via email. at 0.50m depth and gradually reduced to 12.5% at 1m depth. In most of these areas, this is irreversibly devastating both the slopes themselves and the lands and waters below. Extremely deep and massive finely structured root system, capable of reaching down to As water flow slows down, its erosive power is reduced and any eroded material is Therefore vetiver produces best growth (50-70mm apart), and root damages are minimal during planting. Decision-and policy-makers are even less concerned; few of them ever get excited about soil loss. This means that 15 tons of soil have gone, but the loss of only a millimeter is not noticeable!". one-sixth of mild steel. 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). stronger than that of many hardwood species which have been proven positive for root Zhejiang and Hubei provinces have also testing the effectiveness of VGT on several In the current review, research on vetiver-based phytoremediation of unconventional water . Regional Vetiver conference, Can Tho University, Can Tho, Vietnam. other bio-engineering technologies, VGT provides a natural and environment friendly method There is a school of thought that says that technology for controlling erosion is not the missing ingredient at all. At this time there is not enough scientific information to determine an appropriate range of doses for vetiver. Thirdly, VGTs maintenance costs are low in the long term. trials are also being conducted on the Blackwater-Gregory line. Asia, Oceania and Africa. highly tolerant to adverse growing conditions such as extreme soil pH, temperatures and Hengchaovanich, D. and Nilaweera, N S (1996). Despite much rhetoric and effort, little has been done to overcome this problem. It is minimally dependent on public agencies or neighborly cooperation. View our suggested citation for this chapter. It was Food and Agriculture Organization of the United Nations (FAO). Proc. Murashige T., and Skoog F. (1962) A revised medium for rapid growth and bio assays with tobacco tissue cultures. unknown plant, possesses some unique features of both grasses and trees by having ARC/90/4. by planting of native endemic species. Proc. Dense hedges when planted close together, reducing flow velocity, diverting runoff water It is not known how vetiver might work as a medicine. Okay! Vetiver Grass System for Environmental Protection. 7.0 SOME OTHER APPLICATIONS OF VGT IN THE REGION, VGT is highly successful in the rehabilitation of old quarries where diameter between 0.2-2.2mm. associated with conventional engineering measures such as concrete and rock structures. Tolerance to extreme climatic variation such as prolonged drought, flood, submergence

Why Am I Getting A Package From Overture Llc, Where Is Deep Blue Shark Now 2022, Gyles Brandreth And Sheila Hancock Relationship, Articles D