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1、Astheworld’spopulationgrows,farmerswillneedtoproduce阅读理解答案 Astheworld’spopulationgrows,farmerswillneedtoproducemoreandmorefood.Andlargefarmsareincreasinglyusingprecisionfarmingtoincreaseyields(产量),reducewaste,andreducetheeconomicandsecurityrisksthatinevitablyaccompanyagric
2、ulturaluncertainty. Traditionalfarmingreliesonmanagingentirefields—makingdecisionsrelatedtoplanting,harvesting,irrigating,andapplyingpesticidesandfertilizer(农药和化肥)—basedonregionalconditionsandhistoricaldata.Precisionfarming,bycontrast,combinessensors,robots,GPS,mappingtool
3、sanddata-analyticssoftwaretocustomizethecarethatplantsreceivewithoutincreasinglabor.Robot-mountedsensorsandcamera-equippeddrones(无人机)wirelesslysendimagesanddataonindividualplantstoacomputer,whichlooksforsignsofhealthandstress.Farmersreceivethefeedbackinrealtimeandthendelive
4、rwater,pesticideorfertilizerinadjusteddoses(剂量)toonlytheareasthatneedit.Thetechnologycanalsohelpfarmersdecidewhentoplantandharvestcrops. Asaresult,precisionfarmingcanimprovetimemanagement,reducewaterandchemicaluse,andproducehealthiercropsandhigheryields—allofwhichbenefitfa
5、rmers’bottomlinesandconserveresourceswhilereducingchemicalrunoff. Manysmallbusinessesaredevelopingnewsoftware,sensors,andothertoolsforprecisionfarming,asarelargecompaniessuchasMonsanto,JohnDeere,Bayer,DowandDuPont.TheDepartmentofAgriculture,NASAandtheNationalOceanicandAtmo
6、sphericAdministrationallsupportprecisionfarming,andmanycollegesnowoffercourseworkonthetopic. Inarelateddevelopment,seedproducersareapplyingtechnologytoimproveplantcharacteristics.Byfollowingindividualplantsovertimeandanalyzingwhichonesflourishindifferentconditions,companie
7、scanrelatetheplants’responsetotheirenvironmentswiththeirgenomics(基因组学).Thatinformation,inturn,allowsthecompaniestoproduceseedvarietiesthatwillgrowwellinspecificsoilandweatherconditions.Thisadvancedtechnologymayalsohelptoimprovecropnutrition. Farmersdonotuniversallywelcomep
8、recisionagricultureforvariousreasons,suchashighequipmentcostsandlackofaccesstotheI
