Supposeonthesametenantfarmanadditionalcrop,saysoybeans,wasaddedtotherotationafterthesharerestriction,,,iftheaddedsoybeansreceivedthesameamountofinputpercropareaasonanotherfarmwheresoybeanshadbeenintramarginal,,iftheaddedsoybeancropreceivedsufficientlyhighdensityofplanting,,wewouldfindariseinthecropareaofsoybeans,,however,,regardlessofplantingdensity,,thesoildepleted,theseasonunfit,,ofcourse,,,andifalargenumberoftenantfarmerssimultaneouslychosethesamecroptoaddintotheircroprotation,theaggregatedcrophectareyieldforthiscropwouldfall,,,therefore,,,thereexistsaclassofcropswhichhadnotbeenmonlyrotatedunderafreemarket,whereasunderthesharerestriction,,,theyieldpercroparea(hectare)foranintramarginalcropislikelytorise,,foramarginalcropthecrophectareyieldislikelytofall,witharelativelylargeincreaseincroparea.[1].SinceTaiwanAgriculturalYearbookwillbecitedheavilyhereafter,-TienChang,CommissionerofTaiwanProvincialDepartmentofAgricultureandForestry,thefollowinginformationisprovided:

(1).Thethree-levelcrop-reportersareresponsibleforcollectingallbasicagriculturaldata.…Thereare720townshipreporterswhomakefieldsurveysandsubmitdatacollectedtohsien(county)(county)governmenthastwocrop-reportinginspectors,alltogether44ofthem,,thecountyreporterssubmitthedatatotheProvincialDepartmentofAgricultureandForestry.(2)..…

(3).Otherdata,suchascultivatedareaandpopulation,areobtainedfromtheProvincialLandBureauandtheProvincialDepartmentofCivilAffairsrespectively.[2].,alllandis"arable,"butwhetherornotitiseconomicallyworthwhiletocultivateissomethingelse.[3].SeeSino-AmericanJointCommissiononRuralReconstruction,"JCRRAnnualReportsonLandReformintheRepublicofChina,"mimeographed(Taipei,1965),chap.8.[4].Cropareaissometimescalledcroppingarea,crophectares,theareaofplantation,,"AnEconomicStudyofLandUseinTaichungHsienandCity,1960,"mimeographed(Taichung:ResearchInstituteofAgriculturalEconomics,ChungHsingUniversity,1961);andNien-tsingLu,AnAnalysisofFarmFamilyEconomyofOwner-OperatorsundertheLand-to-the-TillerPrograminTaiwan(Taipei:ResearchDepartmentoftheLandBankofTaiwan,1965).[5].Theone-halfcropofvegetablemaymeanthatonlyone-halfofthehectareoflandisbeingutilized,.[6].Sincehorticulturalcropsare"perennial,"theyarenotrotatedlike"annual".[7].Notethatwearespeakinghereofthecostofplantingonehectareofthesamecrop,,:Rice