種後3個月，看長勢適可給晚熟品種或後期長勢差的甘薯施壯尾肥。

要及時灌溉、除草
、鬆土、培pei土tu，好hao處chu在zai於yu充chong足zu水shui分fen和he通tong風feng透tou氣qi有you利li甘gan薯shu高gao產chan優you質zhi

，且qie可ke防fang治zhi病bing蟲chong害hai。當dang天tian氣qi幹gan旱han蒸zheng發fa量liang大da，主zhu要yao根gen據ju壟long麵mian幹gan燥zao開kai裂lie來lai判pan斷duan灌guan水shui，一yi般ban半ban個ge月yue灌guan一yi次ci水shui。灌guan水shui要yao灌guan透tou全quan壟long
，一yi般ban當dang水shui浸jin過guo壟long的de一yi半ban以yi上shang
，觀guan察cha水shui是shi否fou能neng逐zhu漸jian濕shi潤run到dao壟long頂ding即ji可ke。灌guan水shui後hou壟long溝gou稍shao幹gan不bu沾zhan泥ni時shi要yao除chu草cao
、songtuhepeitu，yongsongtugaihaolongmianliefeng，fangzhixiangbichonghejingmingdengdixiahaichongzuanrulongzhongzhushikuaigenhetengtou
，yingxiangchanlianghepinzhi。zaiganshuquanshengchangqi，douyaosuishiyongqigounigaihaoqimianliefeng，fangzhibingchonghai。zaimiaoqifenglongqian，jieheshifei
，songtu1-2次ci，切qie斷duan地di表biao毛mao細xi管guan，減jian少shao地di表biao蒸zheng發fa。當dang甘gan薯shu莖jing葉ye基ji本ben覆fu蓋gai壟long麵mian後hou
，則ze不bu要yao扯che動dong薯shu藤teng，防fang止zhi打da亂luan莖jing葉ye的de正zheng常chang分fen布bu和he損sun傷shang根gen係xi，影ying響xiang光guang合he作zuo用yong和he營ying養yang吸xi收shou，並bing可ke利li用yong薯shu蔓man的de不bu定ding根gen吸xi收shou水shui分fen抗kang旱han。現xian在zai大da多duo數shu的de甘gan薯shu新xin品pin種zhong是shi短duan蔓man和he莖jing蔓man少shao發fa根gen的de良liang種zhong，所suo以yi，一yi般ban不bu提ti倡chang翻fan蔓man。但dan在zai連lian續xu大da雨yu後hou或huo連lian綿mian陰yin雨yu天tian，會hui引yin發fa甘gan薯shu莖jing蔓man徒tu長chang和he滋zi長chang新xin根gen，這zhe會hui增zeng加jia營ying養yang損sun耗hao，並bing且qie中zhong後hou期qi的de新xin根gen難nan結jie薯shu，就jiu算suan成cheng薯shu也ye小xiao，應ying適shi當dang翻fan蔓man控kong長chang和he抑yi製zhi莖jing蔓man長chang根gen。翻fan蔓man應ying是shi提ti蔓man斷duan根gen，輕qing放fang回hui原yuan位wei

，不bu可ke翻fan亂luan莖jing葉ye的de原yuan有you正zheng常chang分fen布bu，特te別bie是shi莖jing葉ye反fan放fang，需xu較jiao長chang時shi間jian才cai能neng恢hui複fu
，會hui嚴yan重zhong影ying響xiang光guang合he作zuo用yong和he產chan量liang。