2、drottenbollrateofcottonateachgrowthperiodunderdifferentplantingdensitieswereanalyzed,andthebollweight,lintandlintyieldofdifferentharvesttimeswerecompared.Finally,thesuitableplantingdensityforcottonproductioninthenorthwestofShandongProvincewasdeterminedas60000~75000plantsperhectare. K