紅薯又名甘薯、山芋、地瓜。在過去糧食供求緊張時期,不少地方是“一季紅薯半年糧”,weijiejuewenbaofahuilehendadezuoyong。xianzaisuizhekejidejinbuheshichangnongyedefazhan,duihongshuderenshiyouyouxindefeiyue,hongshubujinshicanzhuomeishiyeshixianzaijietouchangchangchuxiandexiuxianshipin。fazhanhongshushengchanjishitiaozhengzhongzhiyejiegou,tigaoshengchanxiaoyidexuyao,yeshigaishanshiwujiegou,tigaoshenghuoshuipingdexuyao。
hongshuduiturangjishengtaihuanjingtiaojiandeshiyingxinghekangnixingdouqiang,xufeijiaoduoquenaijibo。hongshudezhongzhilibukaixiangyingdeturang,qihou,shuifen,yangfendengxiangguandetiaojian,danshihongshuchulejigezhongyaodezhongzhitiaojianzhiwaihongshuzaishengwuxueshangshuduonianshengzuowu,ershengchanshangdoushiyijingmanzuoweifanzhitideyinianshengzuowu。genjuhongshushengchangdetedian,yibanbahongshudeshengchanghuafenweisigeshiqi:
(1)發根返青期:從栽插至根係基本形成時為止,約需時20天;
(2)分枝結薯期:從根係基本形成至莖葉有一定數量、有效薯數基本穩定為止,約需時30天;
(3)莖葉盛長與薯塊膨大期:從封壟開始至生長最盛,葉麵積指數達到最大,塊根逐漸膨大。約需時40—50天;
(4)薯塊迅速膨大與莖葉漸衰期:(指栽植90天以後);莖葉緩慢生長至停滯生長,葉色出濃綠變成淡黃,薯塊迅速膨大,需時30天以上。
隻有了解和掌握了紅薯種植的生長時期和相關因素,再運用科學合理的種植與管理方法,紅薯的豐收是一定的。
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