D2B—Lancaster Farming, Saturday, May 5,1984 Sewage sludge (Continued from Page 027) Assuming an average 3% N and 6% P 205 content, the amount of sludge produced annually in Maryland would contain in excess of 1600 tons of total nitrogen and 3200 tons of phosphorus. This would be about 2.8% of the nitrogen and 8.9% of the phosphorus used by Maryland farmers in 1982. At $0.30 per pound, the total nitrogen would have a fertilizer value of about $970,000, and,the phosphorus would have a value of over $1.9 million. Assuming that 20% to 40% of the total nitrogen is available to crops the first year after application, the available nitrogen would have an annual value of about $200,000 to $400,000. Obviously, digested sewage sludge can be a source of valuable fertilizer nutrients. But, there are a number of potential hazards associated with the application of sewage sludge to land. Heavy metals such as cop per, cadmium, zinc, lead, nickel, etc. may be introduced into the food chain. Cadmium is particular is known to be associated with a number of human health problems. Some of the heavy metals are necessary in very small quantities for plant growth. But in excessive quantities, they can be toxic to plants, animals and humans. Heavy metals have a half-life of about 1000 years, thus they persist in the environment. Simplicity More. Compare Simplicity's 6216 with Deere and Sears. Aide-pwWxi m oww deck wrth M*ftflhrolars ControM traction drivan hoi Briggs lr Stratton tndustnd/Commeraol eny» But ho Irani and rtor pow«r takeoff Sngte p«M dutctvno/brcMng Tight 24 tumngradus Big copocrty tottery (30 Anp/hr) Data bused on information available as of July 1903 LEBANON AGWAY 16th and Cumberland Streets Lebanon, PA 17042 (717) 273-2621 J.B. HOSTETTER & SON L.H. BRUBAKER, INC. 35 W. Main St 350 Strasburg Pike Mt. Joy, PA 17552 Lancaster, PA 17602 (717)653-1841 (717)397-5179 4ft} HrfKiujes's /£mm & Qt*dm Eqtipmnd. 9ac. ' TWO CONVENICNT LOCATIONS: 1755 W. Main St. 1515 East Chocolate Ave Ephrata, PA 17522 Hershey, PA 17033 Located on Rt. 322 (717) 533-4060 (717)738-1131 Another unknown is the significance of the possible presence of persistent toxic organic compounds in sludges. Some organic compounds from industry may prove to be toxic to animals if consumed directly from sludge-amended pastures or from physically contaminated hay crops, PCB’s are just one example of this type of organic compound. Therefore, land application requires a conservative approach until adequate evidence is collected to dispel these concerns. To help minimize the nsks associated with the land ap plication of sludge in Maryland, guidelines have been developed by scientists at the University of Maryland. These guidelines are found in Fact Sheet 336 which is entitled “Guidelines for Land Application of Sewage Sludge and Composted Sewage Sludge”. These guidelines were developed for two categories of land farmland and marginal land. For farmland, annual applications are deter mined by the nitrogen requirement of the crop. The maximum cumulative application is deter mined by the heavy metal loading of the soil. Some soils can safely absorb more heavy metals than others. This difference between soils is currently estimated by measuring the cation exchange capacity. On marginal land, such as a worked 6211,11 hp., NOW oAcnC4l 42” mower. ONLY fZ&SIu Sugg, retail price $2,895. SAVE $3OO 6216.16 hp., NOW 42” mower. ONLY Sugg, retail price $3,370. SAVE $375 6216.16 hp., NOW AQA'i g* 48” mower. ONLY suUlu T Sugg, retail price $3,415. SAVE $4OO Offer limited to models in stock * Actual telling price may vary by dealer I LEBANON VALLEY IMPLEMENT CO..INC. 700 E. Linden St. Richland, PA 17087 (717) 866-7518 C 1983 Simplicity Manufacturing. Inc National Farm-City Conference SYRACUSE, NY The National Farm-City Conference will be held out gravel pit, a single application of as much as 50 dry tons/acre is allowed as long as the overall heavy metal restriction is not exceeded. There are many other specific restrictions relative to the site and to the quality of the sludge, all of which are explained in Fact Sheet 336. Fact Sheet 336 also makes it clear that “the implications of the uptake by plants of heavy metals and persistant organics from sludge, their intake by grazing animals and their ingestion by humans are not entirely un derstood. Therefore, the University of Maryland cannot predict the long-term effects of sewage sludge on the environment and does not accept responsibility for any such effects”. Copies of Fact Sheet 336 are available through the University of Maryland Cooperative Extension Service offices. PORT-A-WASH SEjr* Fleetwood Berks Co. Phone 944-0535 HOUSE & BUILDING CLEANING • BRICK • STONE • WOOD • ALUMINUM • CONCRETE Power Washing & Liquid Sandblasting • Pre-Paint Preparation CALL... RICH KOLB FOR A FREE ESTIMATE fEß*"* 15 6 /ft nv\ augers ff'E't T/u '"'iffij planned May 23-24 in Syracuse, N. Y. on May 23 and 24 at the hotels on Syracuse Square. Richard K. Arnold, chairman of the New York State Farm-City Council, host of the event, expects agribusiness and association leaders, educators, and com municators from a number of states to attend this combination workshop and seminar aimed at improving techniques find ef fectiveness in building Farm-city programs at community and state levels. Following a meeting of the National Farm-City Council board of directors, Sam Stenzel, executive director of the National Vocational Agriculture Teachers Association will conduct a workshop on Wednesday morning, May 23. The kick-off luncheon with Anthony J. Palangi, district governor of the N.Y.S. Kiwanis as speaker will set the stage for an afternoon filled with information, ideas, and reports on current and planned programs aimed at GRAIN STORAGE IT'S YOUR BEST BUY GET THE BEST FROM: rfs mi automatic farm systems Need... HAY • STRAW - EAR CORN PEANUT HULLS Buy Now and Save! More and more farmers are buying from us for better value and all around satisfaction. DELIVERED ANY QUANTITY Phone Area Code 717-687-7631 ESBENSHADE TURKEY FARM PARADISE, PA. 608 Evergreen Rd., Lebanon, PA 17042 (717) 274-9333 creating a better understanding between rural and urban people in New York State and elsewhere^ Participants will learn about a new dairy farm beautification program from Sue Reynold’s of Delancey, N.Y.; Peggy Lipinski, N.Y.S. Association of Fairs, will report on changes at the county fairs and Mitzi Ayala, a rice grower and television hostegs from Davis, Cal. will report on'telling the farm story on television. A panel moderated by Mary Lou Brewer of Cornell University’s Extension Service will present ideas of expanded programs in local communities. Penrose Hallowell, secretary of agriculture for Pennsylvania, will head a delegation describing Farm-City activities in the Keystone State. A tour of the 500-acre Agway Farm Research Center at Tully, N.Y. is on the agenda in the af ternoon for those interested. Anyone wishing further in formation about attending the conference may call Sharon Hartwell at 315/477-6201.
Significant historical Pennsylvania newspapers