小麥揚花-guanjianghouqishengyuduiquebaochanliangzhiguanzhongyao

，houqishuifeiguanlibukefangsong。youqiduiyuxiandaigaochanpinzhong
，tamendetedianshihouqizengchanqianlida，xudanyejiaoduo。dantongshi，houqishuifeiguanlidefengxianhenandujiaoda
，benqiteqingzhuanjiajiuciweinongminpengyoudayijiehuo。

dangqianxiashouzuowudongxiaomaijinruhouqishengchangjieduan，zhengjinxingzheziliguanjiangchengshudengfayuguocheng。daonongtianlizouyizoukanyikansihugandaoxiashouzuowudenianjingyijingkewang
，dankewangshangbushikeji，xianzailixiashouzuowudeshouhuohaiyouyiduanguanjianshiqi，bunengfangsongxiashouzuowudehouqishuifeiguanli。jiuyidongxiaomaideguanjianglaishuo
，zheshijuedingdongxiaomaishouchengdezuihouguanjianshiqi。zhengrunongyansuoshu： 麥收三不少
，穗多穗大籽粒飽。 雖(sui)然(ran)麥(mai)田(tian)的(de)穗(sui)數(shu)已(yi)經(jing)定(ding)型(xing)，但(dan)是(shi)粒(li)數(shu)還(hai)未(wei)完(wan)全(quan)定(ding)，至(zhi)於(yu)粒(li)飽(bao)或(huo)千(qian)粒(li)重(zhong)的(de)多(duo)少(shao)，正(zheng)是(shi)由(you)這(zhe)一(yi)段(duan)時(shi)期(qi)的(de)生(sheng)長(chang)發(fa)育(yu)來(lai)決(jue)定(ding)。這(zhe)說(shuo)明(ming)冬(dong)小(xiao)麥(mai)生(sheng)長(chang)雖(sui)然(ran)進(jin)入(ru)後(hou)期(qi)
，但(dan)後(hou)期(qi)的(de)水(shui)肥(fei)管(guan)理(li)不(bu)可(ke)放(fang)鬆(song)。它(ta)對(dui)產(chan)量(liang)的(de)形(xing)成(cheng)很(hen)重(zhong)要(yao)。小(xiao)麥(mai)的(de)籽(zi)粒(li)灌(guan)漿(jiang)，由(you)乳(ru)熟(shu)階(jie)段(duan)到(dao)成(cheng)熟(shu)階(jie)段(duan)，應(ying)保(bao)持(chi)一(yi)定(ding)綠(lv)葉(ye)麵(mian)積(ji)才(cai)有(you)較(jiao)高(gao)的(de)光(guang)合(he)效(xiao)率(lv)，此(ci)時(shi)要(yao)適(shi)當(dang)補(bu)充(chong)營(ying)養(yang)


，可(ke)防(fang)止(zhi)葉(ye)片(pian)因(yin)早(zao)衰(shuai)而(er)減(jian)輕(qing)粒(li)重(zhong)。至(zhi)於(yu)施(shi)肥(fei)方(fang)式(shi)可(ke)采(cai)用(yong)土(tu)壤(rang)施(shi)肥(fei)
，也(ye)可(ke)采(cai)用(yong)根(gen)外(wai)追(zhui)肥(fei)的(de)技(ji)術(shu)。

houqishuifeiguanlideyuanzeyaoshimaiqingerding，jifeiyilvyaozhuifeiguanshui，yefeiyilvyaokongshuikongfei。zhenduixiaomaihouqideshengyutedian，shiyizilixingchengweizhongxin
，baokuokaihuashoujing、ziliguanjiangdengguocheng
，tajiangjuedinglizhonghelishudeduoshao，duixiaomaichanliangqizhezhiguanzhongyaodezuoyong。youyuyepianshixiaomaishengchanguanghechanwuhejinxingzhengtengdeqiguan，houqiruguoyepianshuailaotaikuai，huiduiguanjiangbuli
；ruguoyepianguowangtanqingwanshunayebuliyugaochan。weici，shuifeiguanlidemubiaoshibaochigenxihuoli，yanchangyepiangongnengqi，fangzhizaoshuaiyutanqingwanshu。weilecujinguanghechanwuxiangziliyunzhuan
，zhengqulizhong
，zhenduibutongmaiqingcaiquyixiaguanlicuoshi：

對抽穗期葉色明顯轉淡、群體不大的麥田，可抓緊追施氮肥一次。同時澆灌揚花-灌(guan)漿(jiang)水(shui)。氮(dan)肥(fei)的(de)用(yong)量(liang)要(yao)適(shi)當(dang)，可(ke)以(yi)補(bu)施(shi)少(shao)量(liang)氮(dan)素(su)，如(ru)果(guo)多(duo)了(le)會(hui)導(dao)致(zhi)貪(tan)青(qing)晚(wan)熟(shu)甚(shen)至(zhi)倒(dao)伏(fu)，必(bi)須(xu)掌(zhang)握(wo)恰(qia)當(dang)才(cai)可(ke)以(yi)實(shi)現(xian)增(zeng)加(jia)千(qian)粒(li)重(zhong)和(he)保(bao)粒(li)數(shu)的(de)目(mu)的(de)。氮(dan)肥(fei)品(pin)種(zhong)可(ke)選(xuan)用(yong)硫(liu)銨(an)、碳銨或尿素。用尿素追肥要提前2天。氮素淨用量每畝不超過1.5～2公斤。

對於群體較大的麥田
，為了防止後期幹熱風造成的倒伏，在花後-灌漿期噴施2次濃度含1%的腐植酸液和磷酸二氫鉀（0.2%～0.5%）加尿素（0.5%～1%）的混和液；也可以噴施矽肥和腐殖酸肥液（濃度各為1%左右）。凡葉麵噴施肥料
，一般都要噴兩次
，間隔4～5天。這樣既有利於保千粒重又有利於防、抗幹熱風所引起的倒伏問題。

zaiyouguangaitiaojiandezhengchangmaitian，shiturangshangqingzhuangkuang，zaiguanjianggaofengqianjishiguangaiyanghuashuihuoguanjiangshui
，zheyishuiyouliyuxiaomaipeirufayu
，zengdazishipiheyingguo
，congerzengjiakurongliang。

總之，小麥揚花-guanjiangdehouqishengyuduiyubaochanliangshizhiguanzhongyaode。houqishuifeiguanlibukefangsong。youqishiduiyuxiandaigaochanpinzhong，tamendetedianshihouqizengchanqianlida
，houqixudanyejiaoduo，houqishuifeiguanlishichuanggaochandeguanjian。danshi，houqishuifeiguanlidefengxianhenanduyejiaoda，bixunanieqiadang，fangzhiyinqitanqinghuozaoshuai
，erzhedouhuidaozhijianchan。