《蔬菜栽培英文版》ppt课件

《蔬菜栽培英文版》ppt课件

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时间:2019-07-21

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1、VegetableGardeningHomevegetablegardeningProducevalueof$14billionperyear(U.S.)40%offamilieshavevegetablegardensWhygrowvegetables?TasteSavesmoneyHealthCanbechemical-freeExerciseAttractswildlifePlanningagardenLocationWatersupplyFullsunWelldrainedloam,pH6-6.5Awayfromtre

2、esAwayfromslopesPlanningagardenSizeStartsmall(25’x25’orless)Mostseedpacksplanta15’rowGardenlayoutRowsorientedeasttowestTaller&trellisedplantsonnorthsideShorterplantstowardssouthsidePlantperennialstogetherBlock(bed)gardeningVegetablegardendesignRowsBedsMixedbeds(flow

3、ers/vegetables)ContainersWindowboxesPlanningavegetablegardenWhatuses?Fresh,canning,freezing(p.500)ClimateassessmentDatesofavg.spring&fallkillingfrostsFrostfreeperiod=#daysfromlastspringfrosttofirstfallfrost(rangesfrom60-250days)PlanningavegetablegardenVegetablechara

4、cteristicsDaystomaturityWarmseasonvs.coolseasonWarmseason–restrictedtofrostfreeperiodCoolseason–cantoleratelightfrostStartindoors&transplantforSpringcropPlantasseedforlatefallcropPlanningavegetablegardenVegetablecharacteristicsHarvestedcropandlightrequirementsFruit>

5、8hoursRoot>6hoursLeaf>4hoursHarvestedcropandnutrientrequirementsLeafcrops–highNRootcrops–HighK,lowerNPlanningavegetablegardenIntercroppingSuccessionplanting(doublecropping)RelayplantingCroprotationCompanionplantingRowtorowdistanceIntercroppingSuccessionplantingRelay

6、plantingPlantingatintervalsforcontinuous,extendedharvestBeans,sweetcorn,lettuceSowwhenpreviouscrophasemerged(germinated)CroprotationCompanionplantingSomeplantsdobetternexttocertaintypesofplantsSomeplantshaveinsectrepellantpropertiesSomeplantsattractbeneficialinsects

7、Example:corn/squashcanopydisorientssquashvineborerCompanionplantingforpestcontrolBeneficialinsectsPoorplantcombinationsPlantantagonism–someplantssecretegrowth-suppressingchemicalsBeansdonotfollowonionswellTomato/potatodonotfollowBrassicaswellPlantspacingCandetermine

8、finalsizeofplantsEqualaccesstowater,nutrients,lightCanopycansuppressweedsPlantingavegetablegardenSeedViability&storageDirectvs.indirectsow

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