Grass, orchard

B MI. Ingham Co. Miami loam alfalfa-orchard grass field. 15 13 27 13 0 27 27... 

Permissible tolerances for atrazine range from 0.02 mg/kg in meat, milk, and eggs, to 15 mg/kg in orchard grass forage, fodder, and hay (Reed 1982 USEPA 1983). However, the 15 mg/kg tolerance in forage is considered high, and a new upper limit of 4 mg/kg is proposed. This limit would be expressed in terms of atrazine and three major metabolites (Reed 1982 USEPA 1983) ... 

The Purdue concepts have been applied to several different agricultural products, such as corn stalks, alfalfa, orchard grass, tall fescue, and sugarcane bagasse. No experiments have been reported on either hardwoods or softwoods. The processes have been explored in two major modes. In the first, the entire agricultural residue is treated with solvent in the second, a dilute acid pretreatment to remove hemicellulose precedes solvent treatment. The first process is especially desirable for making furfural or fermentation products from hemicellulose as a separate activity. Then, the hemicellulose-free raw material can be converted to substantially pure glucose. 

Table II. Dieldrin and Heptachlor Concentrations in Air and Hourly Flux Intensities from Orchard Grass Surface on Day of Application >b...

Rasmussen, G. Olsen, R. A. (2004). Sorption and biological removal of creosote-contaminants from groundwater in soil/sand vegetated with orchard grass Dactylis glomerata). Advances in Environmental Research, 8, 313-27. 

Dactylis (orchard grass) Dactyloctenium (crowfoot grass) Danthonia (oat grass)... 

Rank the expected relative toxicity of the following plants cactus, borage, poinsettia, larch, African violet, orchard grass. Take into account the opportunity to be eaten by grazing herbivores. Why did you rank th this way ... 

Plant material (orchard grass) A (oxygen flask) B (automated combustion ) C (alkaline digestion) D (automated dry combustion ) E and F (perchloric acids) A=B>C=D>E=F Incomplete destruction and S volatilization led to low S results Total S... 

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