inrecentyears,China'sedibleoildemandisontherise,demandtheoilhasbecomethehighestdependenceofbulkagriculturalproducts,morethanabout60peryeartorelyonimports,http://www.kamfaiwongs.com/shownews.asp?id=5,andexpectsthefutureforalongperiod,willbeashortageofdomesticsupply,importsincreasedpressuresituation.inChinahasalonghistoryofplantingrapeseed,http://evoljavacommunity.evoljava.com/CopyOfBellaOriginal/index.php,EdibleRapeseedoilhasbecomemanypeople'spreferencesofurbanandruralareas.Isthefirstdomesticvegetableoilrapeseedoiloilsource,accountingforabout55ofdomesticoilproductionofoilcrops.ToensurethesafetyofvegetableoilsupplyinChina,itisnecessarytoexpandtheproductionandincreasetheyieldofrapeseed.rapeistheonlygrainandoilcropscanbeachieved,canavoidconflictswithfoodcrops.Notonlydonotcompetewiththegrain,butalsoalargenumberofrapecanincreasethesoilorganicmatter,thereleaseofphosphorusinthesoil,http://www.jmhaishen.com/E_GuestBook.asp,fumigationandkillingsoilbornepathogenicmicroorganisms,reducepestsanddiseasesoffoodcrops.China'srapeseedacreagehasgreatpotentialfordevelopment,theYangtzeRiverBasinhasabout150millionacresoffallowfarmlandandbeaches,ifusedeffectively,canincreasetherapeseedplantingareaof60millionacresormore.atpresent,China'srapeseedyieldlevelislow,earlythreerapeseeddeficiency,lowlevelofmechanization,highlaborcosts,lowproductionefficiency,italsomeansrelyingonscienceandtechnologytoimprovetheyieldpotential.Vigorouslydevelopingrapeseedproductionisofgreatsignificancetoguaranteethesafetyofvegetableoilsupplyinchina.lackofsuitablevarietiesofmachineincomeisanimportantbottleneckofrapeseedproductionmechanization.Atpresent,thewholemechanizationofrapeproductioninChinaisstillintheinitialstageofdemonstrationandpopularization.Becausethetraditionalthoughtinfluence,thefarmershavedoubtsonthethreshingrateofrapemechanizedharvestandlossrate,actuallyplotsofthesamesize,harvestmechanizationofharvestingthanartificialharvesttoharvest.forrapeseedinrapeharvestingmechanizationinChinaisstillintheexplorationstageofthedemonstrationofthereality,http://www.jiningtx.com/wMcms_GuestBook.asp,weshouldincreasetherapeseedproductionpolicysupport,integrationofexistingresourcesandprojectpersonnel,technology,advantages,explorethesuitablemechanizedproductionmodeindifferentregions.Firstofall,weshouldchooseavariety,followedbytheoptimizationofplantingmethods,andfinallytoregulatetheplantingstandards,andgraduallyformacompleteproductionsystemformechanizedrapecultivationtechnology.近年来，我国食用植物油需求呈上升态势，需求的刚性增长使得油料已成为国际依存度最高的大宗农产品，每年约60以上需要依赖进口，而且预计未来较长时期内，仍将呈现国内供给不足、进口压力增加的局面。我国种植油菜的历史悠久，食用菜籽油已成为许多地区城乡人民的喜好。菜籽油是国产植物油第一大油源,[url=http://yu-an.com.cn:99/forum.php?mod=viewthread