t Shop and Save * IVi B A R 6 A I N DAYS in ★ 10% DISCOUNT FROM ALL STORE PRICES ON CASH & CARRY * " (Except medicated premixes) 225 Wood Corner Road Lltitz, PA. 17543 717-738-4241 Hours: Mon.-Thur. 7:30-5:00 Fri. 7:30-9:00 Sat 7:30-12:00 =dPi mile West of Ephrata ★ Plus Red Tag Specials ★ Plus Vz Price Bargain Table ★ Plus Free Coffee & Doughnuts KEY-AID DISTRIBUTORS Inventory Soli 10% EVERYTHING IN STORE Plus IN STORE SPECIAL And SOME % PRICE ITEMS & L B. ZIMMERMAN, r\ 295 Woodcorner Rd., Lititz, PA 17543 -ds PH: 717-738-1121 STORE HOURS M-T-F 7:00to8:00; Tues. & Wed 7:00to5:30; Sat. 7:00to4;00 CASH & CARRY DEC. 26th THRU 31st Ip* Refreshments ,A INC. Lancaster Fanning, Dec 21,1985-A25 Determining soil loss CHICAGO, IL - A new concept for predicting soil erosion on hillslopes contests an old theory that long slopes with steep grades erode the most soil. As L. Darrell Norton told the American Society of Agronomy, more soil erodes on slopes of shallow grade and short length. He said concave (saucer-shaped) de pressions with runoff flowing to one basin accumulate the most sediment while convex (arc-shaped) slopes with runoff flowing in different directions cause the most erosion. The Universal Soil Loss Equation, developed in 1965, only considers soil erosion to estimate average an nual loss. Norton’s findings show that sediment must be in cluded with soil loss when calculating prediction models. He used a closed drainage basin (all sediment settling within one field) for his study site. The land, cultivated for 145 years by one family, con tained 1-to 5-percent slopes similar to con toured fields throughout much of the Com belt. Norton, soil scientist with USDA’s Agricultural Research Service, National Soil Erosion Research Laboratory, West Lafayette, Ind., said the most obvious effect of the erosion-sediment interaction on this old watershed was the way the land contours changed and smoothed out through the years. The balance between the shape of the land and how time and cultivation affect it determines the overall erosion rate. Knowing where this balance shifts-for in stance, deposits exceed erosion on long steep slopes with many humps and hollows-is the key to constructing accurate prediction models for a long-term average erosion rate, Norton said. I'M NOT L10N... The Classified Livestock Section Has Beastly Selections!
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