Crabgrass overview Crabgrass was introduced to the United States in 1849 for use as a forage species. The majority of its forage production in Georgia occurs between mid June and early September. Crabgrass can produce relatively large amounts of high quality forage, but is an annual and must produce seed to persist. Pure stands of crabgrass have reportedly produced three to five tons of forage ...

Bermuda grass [Cynodon dactylon (L.) Pers.] is a major forage for grazing and hay production in the southern United States. The objectives of this study were to determine effects of nitrogen (N) fertilization rate (0, 112, 224, 336, and 448 kg ha−1), split spring and summer applications of N at the 224 and 448 kg ha−1 rates, and harvest periods (spring and summer) on forage yield, crude protein...

California sea lions increased from approximately 50 000 to 340 000 animals in the last 40 years, and their pups are starving and stranding on beaches in southern California, raising questions about the adequacy of their food supply. We investigated whether the declining sea lion pup weight at San Miguel rookery was associated with changes in abundance and quality of sardine, anchovy, rockfish ...

Many field experiments require the collection of forage yields in addition to grain yield (small grains). ln smal! plot research, mechanized grain harvest is common. However, forage harvest is often accomplished by hand which is time consuming and labor intensive. Sample heterogeneity increases when forage harvest is obtained by hand. The objectives of this study were to construct a mechanized ...

Unsolicited commercial emails (UCE, spam) are currently being fought using reactive methods, filtering being the most common. Reacting means to be always one step behind. So the focus on fighting spam should be on prevention. Current proposals focus on fixing SMTP's lack of authentication, but introduce two major problems: First of all current attempts break existing functionality and, second, ...

This paper considers a dynamic common agency model of natural resource harvest quota regulation in which both conservationists and harvesters vie to influence the regulator’s quota allocations as well as the choice of regulator. Conservationists tend to benefit from the adoption of regulation since the regulator will reduce the aggregate harvest quota relative to the unregulated equilibrium. Ha...

Microbial fuel cells (MFC’s) are promising energy harvesters to constantly supply energy to sensors deployed in aquatic environments where solar, thermal and vibration sources are inadequate. In order to show the ready-to-use MFC potential as energy scavengers, this paper presents the association of a durable benthic MFC with a few dollars of commercially-available power management units (PMU’s...

A user friendly, computer based program has been developed to estimate the performance and cost of sugarcane combine harvesters and associated infield transport vehicles. The model was originally developed to assess the effect of various field parameters, infield cultural practices and also the number and capacity of infield transport vehicles on harvester output. A costing program was subseque...

Forages that accumulate excessive molybdenum (Mo) from excessive land application of Mo can cause molybdenosis, a copper (Cu) induced deficiency in ruminants. Limited information is available on the effect of land-applied biosolids, Mo content, and quality of winter wheat forage (Triticum aestivum L.). The objectives of this study were (1) to determine the effect of biosolids application on tis...

Forage availability is sometimes limited because of poor growing conditions or because of insufficient land base on individual farms. In addition, forage fiber can limit feed intake, particularly for high producing cows, and forage quality is highly variable. Therefore, there is continual interest in alternatives to forages in diets for dairy cows. Decreasing the forage content of diets require...