This study aims to determine suitable start-up conditions and inoculum sources for thermophilic anaerobic digestion. Within days of incubation MSW at 55°C, methane was produced at a high rate. In an attempt to narrow down which components of typical MSW contained the thermophilic methanogens, vacuum cleaner dust, banana peel, kitchen waste, and garden waste were tested as inoculum for thermophi...

With the exception of the undesirable characteristic of summer dormancy and the accompanying low aesthetic value, crested wheatgrass has many desirable characteristics in semiarid environments, making it a promising candidate for lower water use turf. Using a population of 27 half-sib families, this study characterized the underlying genetics of turf quality (based on a 1–9 rating scale) of cre...

number of dead corms per plant by up to 93% and decreases living corm mass by up to 29% (Peters, 1958). Cultivated timothy (Phleum pratense L.) is an important grass for Harvesting frequently, up to three or four cuts per year, hay production in temperate North America. It is underutilized in and season-long competition in a timothy–alfalfa (Medmanagement-intensive rotational grazing systems be...

I B entgrasses are grown for golf purposes under conditions more severe and restrictive than for grasses grown under natural field conditions. As a result, prevention and control of disease becomes more difficult, particularly on greens. Bentgrass greens require large applications of nitrogen fertilizer each year. These high levels of nitrogen are needed to maintain the vigor of grass subjected...

.........................................................................................................................................................................1 Roadside Drainage Design for Channel Stability ..........................................................................................................2 Allowable Velocity and Shear Stress.......................................

In recent years agricultural practices in New England have undergone dramatic changes. Traditional dryland crops such as potatoes and silage corn have been replaced by irrigated “landscape” crops; specifically turf and nursery crops. For example, commercial sod production in Rhode Island has risen from 200 acres in 1972 to over 2,500 acres in 1986, while potato acreage has shown a similm declin...

e rc h re se ar ch ea rc h re se ar ch re se ar ch re se ar ch r rc h re se ar ch Best management practices for anthracnose on annual bluegrass turf 22 Green is Beautiful • Winter 2010 Anthracnose (caused by Colletotrichum cere-ale) is a destructive fungal disease of weakened turf that occurs throughout the U.S., Canada and Western Europe (15) and is particularly severe on annual bluegrass (Poa...

BACKGROUND Turf toe is the general term for a sprain of the first metatarsophalangeal (MTP) joint complex. Previously attributed to shoe design and artificial turf, the incidence of turf toe injury has been thought to decline with the advent of newer turf designs. However, the current incidence and epidemiology remain unknown as the majority of the literature consists of small series and addres...

To reduce maintenance costs, municipalities and schools are starting to replace natural grass fields with a new generation synthetic turf. Unlike Astro-Turf, which was first introduced in the 1960s, synthetic field turf provides more cushioning to athletes. Part of this cushioning comes from materials like crumb rubber infill, which is manufactured from recycled tires and may contain a variety ...