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Show " \FROM FROM \ FROM THE CDUN1V COUNTY CDUN1VAGR'L COUNTYAGR COUNTY0 , , AGR'L AGRL AGR ' L AGENT AGENTi AGENTValue AGENTS AGENTSValue I IValue I II i TopsoilAt Value of Topsoil At one of the soil-erosion soil erosion - experi experi- e pen- pen - ment experiment penment stations of the Soil SOlI Conserva Conserva- - - Conservation tion Service , t\\o t o two \ \ \ plots-equal plots equal plots - equal in size sizeand othernatural and sizeand sln similar lar in soil solI slope , , and other othernatural natural characterlstics-we characterlstics we characteristics-were characteristics were characteristics - - weie e laidout laid laidout I otherI removedfiom removedflom removedhorn out All the topsoil was removed flom horn one plot and both were v.ere vere . plant plnnt- plnnt plant- - I plnntI ed planted plnnted yieldsand to corn Measurements of yields and amount of soil sOlI and andwater . -water water v.ater vater - lost yieldsI from lostfrom from each plot plotft -ft ft v . were - ere made over a I period aperiod of three yearsResults years yearsResults Results complied compIled by the serVlce service serVlcesho serviceiliow servicesho\\ servicesho serviceshothat sho\\ sho iliow shothat \ \ that erosion lemoved emoved removed 1 19 more tons moretons fromthe of soil sol1 per acre each seat eai eal from the sub-soil sub soil SUb-SOlI SOlI - - plot than from the plot plotwith wIth the oligmal oiigmal surface soil and andthat that Hve fhe fire per cent more vatci "atel atel water " ran ranoff ranoff ranoff off the sub-soil sub soil SUb-SOlI SOlI - plot Over the thlce-yeal thlce yeal thiee-year thiee year thethiee-ycal thethiee ycal thethlceyeal thethieeyear - - penod period the corn yield from yieldfrom the sub-soil sub soil SUb-SOlI SOlI subsoila.s - \a.s a.s 'as as gas \ ' . only one-fifth one fifth - - that tha one-fifththat one fifththat onefifththa onefifththat t of the other plotDuiing plot plotDm DUllng Duiing Dm ing the expenment e\.peument e.peument e .peument peument a\peiiment a peiiment \ . an avel- avel avet- avet avetage avelage avei-age avei age - age of 89 tons of soil pci pct aCleas acie aCle acre \\as as was \ \ lost waslost aslost each e'l.ch el.ch elch etch ' . yeai yeal yeasi from the plot with withthe the original surface soil in place The placeThe sub-soil sub soil sub-soli soli - plot lost 108 tons per acre peracre Moie MOle Mote than seven inches mches of soil soilwould soilwould would \ ould be removed in ill less than 20seais 20eais 20 seais ; eal sat at this rate of erosion erOSlOn |