高粱對土壤適應性廣，吸肥力強，在有機質豐富
、肥(fei)力(li)較(jiao)高(gao)的(de)砂(sha)質(zhi)壤(rang)土(tu)上(shang)種(zhong)植(zhi)，較(jiao)易(yi)獲(huo)高(gao)產(chan)，在(zai)瘦(shou)瘠(ji)旱(han)地(di)，缺(que)磷(lin)低(di)鉀(jia)，必(bi)須(xu)增(zeng)施(shi)肥(fei)料(liao)，才(cai)能(neng)得(de)到(dao)好(hao)的(de)收(shou)成(cheng)。高(gao)粱(liang)苗(miao)期(qi)植(zhi)株(zhu)小(xiao)，需(xu)肥(fei)量(liang)不(bu)多(duo)，但(dan)較(jiao)為(wei)嚴(yan)格(ge)。拔(ba)節(jie)至(zhi)開(kai)花(hua)期(qi)

，植(zhi)株(zhu)生(sheng)長(chang)旺(wang)盛(sheng)，營(ying)養(yang)物(wu)質(zhi)的(de)分(fen)配(pei)中(zhong)心(xin)，從(cong)拔(ba)節(jie)開(kai)始(shi)也(ye)相(xiang)應(ying)地(di)由(you)莖(jing)葉(ye)轉(zhuan)向(xiang)幼(you)穗(sui)，最(zui)後(hou)貯(zhu)存(cun)於(yu)穗(sui)中(zhong)，形(xing)成(cheng)籽(zi)粒(li)。因(yin)此(ci)此(ci)時(shi)保(bao)證(zheng)充(chong)足(zu)的(de)營(ying)養(yang)供(gong)應(ying)
，是(shi)高(gao)產(chan)的(de)基(ji)礎(chu)。開(kai)花(hua)至(zhi)成(cheng)熟(shu)期(qi)
，氮(dan)磷(lin)鉀(jia)的(de)營(ying)養(yang)供(gong)應(ying)直(zhi)接(jie)影(ying)響(xiang)高(gao)粱(liang)的(de)灌(guan)漿(jiang)和(he)成(cheng)熟(shu)，適(shi)量(liang)氮(dan)素(su)供(gong)應(ying)，可(ke)以(yi)加(jia)速(su)灌(guan)漿(jiang)，提(ti)高(gao)籽(zi)粒(li)中(zhong)蛋(dan)白(bai)質(zhi)含(han)量(liang)，但(dan)過(guo)多(duo)過(guo)遲(chi)也(ye)會(hui)引(yin)起(qi)貪(tan)青(qing)遲(chi)熟(shu)，降(jiang)低(di)產(chan)量(liang)與(yu)品(pin)質(zhi)。

一般要求畝施有機肥2000至3000公斤，過磷酸鈣15至25公斤，鉀肥10至20gongjindengzuojifei
，jifeishiyongyousashihetiaoshiliangzhongfangfa

，sashiduozaiboqianjiehegengpatiandi
，sashijifei。tiaoshizezaibozhongqianhouqilongkaigoushiyong。lingwaibozhongshimushifushuxifenshui1000公gong斤jin或huo少shao量liang氮dan素su化hua肥fei作zuo種zhong肥fei，有you利li全quan苗miao壯zhuang苗miao。追zhui肥fei以yi速su效xiao氮dan肥fei為wei主zhu，主zhu要yao施shi拔ba節jie肥fei和he孕yun穗sui肥fei。高gao粱liang最zui佳jia追zhui肥fei期qi在zai拔ba節jie期qi與yu大da喇la叭ba口kou期qi，促cu進jin穗sui分fen化hua和he減jian少shao小xiao花hua退tui化hua，實shi現xian穗sui大da粒li多duo。當dang追zhui施shi尿niao素su每mei畝mu超chao過guo15公斤時應分期追施。高粱追肥以前重後輕為好，重施拔節肥(拔節期)，輕施孕穗肥(孕穗期)，一般在有三分之二的葉片全展時畝施鉀肥5至8公斤
，碳銨40gongjin。kaigoutiaoshi，xueshihuosashi，sashishixupeiyishenzhonggenghuojiaoshui
，yilifeixiaofahui。shengyuhouqikeshidanggenwaizhuifei，zaichousuiheguanjiangchuqipenshilinsuanerqingjia(百分之零點一的濃度)或尿素(百分之二的濃度)，以yi促cu進jin早zao熟shu和he增zeng加jia產chan量liang。在zai高gao粱liang生sheng產chan上shang必bi須xu注zhu意yi平ping衡heng施shi肥fei，特te別bie是shi氮dan磷lin配pei合he施shi用yong

，可ke以yi避bi免mian養yang分fen供gong應ying失shi調tiao，能neng夠gou顯xian著zhu提ti高gao肥fei效xiao。低di產chan地di塊kuai上shang，土tu壤rang本ben來lai就jiu缺que氮dan少shao磷lin，單dan施shi一yi種zhong肥fei料liao，常chang常chang由you於yu氮dan磷lin比bi例li失shi調tiao
，不bu能neng很hen好hao發fa揮hui作zuo用yong，造zao成cheng肥fei料liao浪lang費fei，增zeng產chan效xiao果guo不bu大da。

據ju試shi驗yan研yan究jiu，氮dan磷lin配pei合he施shi用yong作zuo種zhong肥fei可ke以yi促cu進jin生sheng育yu

，苗miao期qi生sheng長chang快kuai，葉ye片pian增zeng多duo，生sheng長chang勢shi強qiang，增zeng強qiang了le植zhi株zhu代dai謝xie機ji能neng，可ke以yi提ti高gao植zhi株zhu吸xi收shou能neng力li，顯xian著zhu提ti高gao肥fei效xiao，穗sui重zhong增zeng加jia，增zeng產chan幅fu度du大da，可ke以yi成cheng倍bei增zeng加jia產chan量liang。因yin此ci在zai低di產chan土tu壤rang上shang合he理li搭da配pei，均jun衡heng施shi肥fei是shi一yi項xiang經jing濟ji施shi肥fei的de有you效xiao措cuo施shi。