適shi時shi澆jiao水shui。小xiao麥mai在zai生sheng育yu後hou期qi需xu要yao大da量liang的de水shui分fen,此ci期qi正zheng值zhi旱han季ji,降jiang雨yu少shao,幹gan熱re風feng多duo。為wei保bao證zheng小xiao麥mai正zheng常chang結jie實shi灌guan漿jiang,在zai抽chou穗sui後hou有you條tiao件jian的de地di區qu應ying澆jiao好hao抽chou穗sui、揚花、灌漿水,以滿足小麥對水分的需要。
防(fang)止(zhi)倒(dao)伏(fu)。首(shou)先(xian)要(yao)結(jie)合(he)實(shi)際(ji)選(xuan)用(yong)抗(kang)倒(dao)伏(fu)品(pin)種(zhong)合(he)理(li)密(mi)植(zhi),深(shen)耕(geng)和(he)提(ti)高(gao)整(zheng)地(di)播(bo)種(zhong)質(zhi)量(liang),冬(dong)前(qian)和(he)返(fan)青(qing)期(qi)促(cu)進(jin)根(gen)係(xi)發(fa)育(yu),調(tiao)節(jie)好(hao)群(qun)體(ti)結(jie)構(gou)。特(te)別(bie)在(zai)起(qi)身(shen)拔(ba)節(jie)期(qi)要(yao)準(zhun)確(que)判(pan)斷(duan)苗(miao)情(qing),合(he)理(li)運(yun)用(yong)肥(fei)水(shui)和(he)化(hua)學(xue)調(tiao)控(kong)。另(ling)外(wai)灌(guan)漿(jiang)期(qi)灌(guan)水(shui)應(ying)密(mi)切(qie)注(zhu)意(yi)天(tian)氣(qi),嚴(yan)防(fang)風(feng)天(tian)澆(jiao)水(shui)引(yin)起(qi)倒(dao)伏(fu)。
根外追肥。在小麥開花後,灌漿初期,噴二次磷肥,幹粒重可增加2~3克,增產10%左zuo右you,因yin為wei後hou期qi噴pen磷lin有you利li於yu增zeng加jia小xiao麥mai莖jing葉ye中zhong有you效xiao磷lin和he糖tang分fen的de含han量liang,可ke促cu進jin灌guan漿jiang,使shi幹gan粒li重zhong增zeng加jia,成cheng熟shu期qi提ti前qian。小xiao麥mai開kai花hua後hou若ruo麥mai葉ye黃huang綠lv,則ze有you早zao衰shuai征zheng兆zhao,可ke以yi結jie合he噴pen磷lin加jia噴pen尿niao素su,濃nong度du為wei1%~2%(切忌過濃)。
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