Blends Significantly Cut Carbon Monoxide Levels ST. LOUIS, Mo. Com growers and city dwellers can both breathe a little easier thanks to ethanol. The home grown fuels proved tremend ously successful in cutting car bon monoxide levels in urban areas last winter, reports National Com Growers Asso ciation (NCGA). On November 1, ethanol begins its second year of parti cipating in a federally man dated program to bring carbon monoxide levels into com pliance with acceptable air quality standards for major population centers. The prog WHICH ONE ARE YOU? If selling your grain is costing you money and time at the mill, take a long, hard look at this ad! < vjjJ^ ~*> at - *4* \ °*v V;> BROCK. BIN 1248 South Mountain Rd. • Dillsburg, Pa. 17019 • 717-432-9738 ram runs during the winter months when atmospheric con ditions trap carbon monoxide over highly concentrated urban areas. “We’re encouraging cities nationwide to use ethanol blends as part of their strategy to curb carbon monoxide pol lution,” said Mike Bryan, NCGA ethanol program mana ger. “Last year’s results show consumers are pleased with ethanol’s performance as a fuel. And they appreciate the health benefits of improved air quality.” X \vv '"sK* \ & i YES! I want to make a good ! ! profit and save time when I I I sell my crop Tell me more! I SERVING ! uuic I AGRI BUSINESS J " C j SINCE f AJ ! ADDRESS I 1975 f ’I I ! \ I CITY ; i STATE ZIP I j PHONE ( ) j There is absolutely no obligation to buy Cor d. Last year, ethanol was wide ly accepted as the oxygenate of choice in many cities partici pating in the federal program. And the results were impress ive. In Minneapolis/St. Paul, 100 percent of the gasoline sold contained 10 percent ethanol. “lt was the first year since 1975 that the Twin Gties did'"* not report carbon monoxide levels in excess of acceptable standards,” said Bruce Stock man, executive director of the Minnesota Corn Growers Association. “No consumer health complaints were reported and automobile per formance was outstanding.” As ethanol’s role in curbing Look! I waited in line for 4V 2 hours and got docked over 10,000 lbs. on one load! How about you? j Corn Talk, Lancaster Farming, Saturday, October 9,1993-Page air pollution grows, NCGA estimates demand for the home-grown fuel could even- ik " ll //ll' I* *l tually exceed two billion gal lons per year, requiring 800 million bushels of com. POST SILKING LOSSES OF N FROM CORN Greg Roth Studies that have shown that some nit rogen (N) is lost following the early reproductive stages (silking to milk stage) of a com crop. A recent article published in Agro nomy Journal has carefully documented these losses. The research, conducted by D.D. Francis and others, used radioactive labeled N fertilizer to quantify the losses of N from com plants late in the season. Losses from aboveground plant tissue averaged 40 to 72 pounds of nitrogen/ acre. Quantification of these losses is impor tant because it helps explain the fate of some applied N. In N efficiency calcula tions, it is not uncommon to account for only SO-5S percent of the N applied to a com crop. Some have assumed that the rest is lost through leaching. This research shows that more N is taken up in the grain and stover than we account for by measuring N uptake at harvest. Our research in Pennsylvania supports these results. In com silage studies, we frequently see a reduction in erode pro tein (or N) with advancing maturity, even though yields are not increasing. This suggests that N is being lost from the plants. The mechanism of loss appears to be loss of ammonia from “senescing” plant tissue. Given that we usually have more late season foliar diseases on com here than in the Midwest, we could speculate that we might have even greater losses of N from com plants than those measured in these Nebraska studies. « ft A f /M *ll I • ♦ l» I |*l V»*4| ♦♦ I# I'*/* I f * * ►/ J tffl h ♦; 217
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