手機版
一、要準確把握第一次肥水管理時間
返(fan)青(qing)期(qi)要(yao)澆(jiao)小(xiao)麥(mai)保(bao)苗(miao)水(shui)，並(bing)注(zhu)意(yi)澆(jiao)後(hou)鋤(chu)劃(hua)，以(yi)利(li)提(ti)溫(wen)保(bao)墒(shang)。返(fan)青(qing)期(qi)澆(jiao)水(shui)後(hou)，由(you)於(yu)氣(qi)溫(wen)低(di)，地(di)溫(wen)回(hui)升(sheng)會(hui)很(hen)慢(man)，濕(shi)度(du)大(da)，麥(mai)田(tian)病(bing)害(hai)會(hui)加(jia)重(zhong)，小(xiao)麥(mai)生(sheng)長(chang)也(ye)相(xiang)對(dui)較(jiao)慢(man)。因(yin)這(zhe)時(shi)小(xiao)麥(mai)自(zi)身(shen)生(sheng)長(chang)耗(hao)水(shui)較(jiao)少(shao)，因(yin)而(er)澆(jiao)水(shui)對(dui)小(xiao)麥(mai)生(sheng)長(chang)不(bu)利(li)。返(fan)青(qing)肥(fei)能(neng)有(you)效(xiao)促(cu)進(jin)小(xiao)麥(mai)生(sheng)長(chang)，增(zeng)加(jia)春(chun)季(ji)分(fen)蘖(nie)、促進成穗。因此，返青水適用於旱情嚴重的麥田，返青肥適用於群體不足麥田。
quntibuzumaitianyaojiaoqishenshui，shiqishenfei。qishenqifeishuibuzengjiafenniezongliang，danketigaochengsuilv，congerzengjiamusuishu，yinerqishenqifeishuishiyongyuquntibuzudemaitian、旱情嚴重的麥田、冬前過旺春季轉弱的麥田。對於群體適中或偏大的墒情適宜麥田，起身水肥管理會造成群體過大、基部節間太長、中部葉片過大、易倒伏等不利影響，因而不宜采用，同時已澆過返青水的麥田也不宜采用。
zhutimaitianyaozaibajieqijinxingchunjidiyicishuifeiguanli。bajieqifeishuiguanlinengjiakuaimaitiandaxiaonieliangjifenhua，cujinxiaohuafenhua，shiqiyekuandajianzhuang，tigaokangzaoshuainengli，youliyupeiyuhelidequnti、jianzhuangdegeti，duixingchenghelidemusuishuhesuilishuyiyizhongda。tongshidiyicifeishuiguanlizaibajieqijinxingyeshijianshaochunjijiaoshuicishu，tuiguangxiaomaijieshuigaochanjishudeguanjian，yaoxiangyoushaojiaoshuiyougaochan，namezhiyoushengqubajieyiqianduixiaomaichanliangyingxiangbudadejiaoshui。
二、科學確定小麥春季追肥用量
一般麥田春季追肥用量，尿素在15～25公斤，碳胺可用到50～75公斤，分次追肥的應以起身拔節期追肥為主。具體用量要做到“四結合”：一yi是shi結jie合he底di肥fei施shi用yong情qing況kuang。如ru果guo底di肥fei的de用yong量liang按an我wo們men在zai小xiao麥mai播bo種zhong時shi建jian議yi的de那na樣yang，做zuo到dao了le氮dan磷lin鉀jia比bi例li合he理li，總zong量liang充chong足zu，那na你ni可ke以yi適shi當dang多duo施shi春chun季ji追zhui肥fei爭zheng取qu高gao產chan。如ru果guo小xiao麥mai的de底di肥fei施shi用yong量liang不bu足zu或huo搭da配pei不bu合he理li，尤you其qi是shi磷lin鉀jia肥fei施shi用yong不bu足zu，那na你ni就jiu沒mei有you必bi要yao追zhui太tai多duo的de氮dan肥fei，以yi免mian造zao成cheng浪lang費fei和he引yin起qi貪tan青qing晚wan熟shu。二er是shi結jie合he苗miao情qing。冬dong前qian旺wang苗miao，由you於yu冬dong前qian消xiao耗hao養yang分fen較jiao多duo，可ke在zai春chun季ji多duo追zhui一yi些xie氮dan肥fei。三san是shi結jie合he土tu壤rang保bao水shui保bao肥fei能neng力li。沙sha薄bo漏lou地di保bao水shui保bao肥fei能neng力li差cha，需xu澆jiao水shui次ci數shu多duo，為wei提ti高gao肥fei料liao利li用yong率lv，需xu分fen次ci追zhui肥fei，可ke適shi當dang增zeng加jia總zong追zhui肥fei量liang。四si是shi結jie合he管guan理li的de需xu要yao。如ru果guo返fan青qing期qi需xu要yao施shi肥fei，那na麼me小xiao麥mai春chun季ji至zhi少shao需xu要yao追zhui兩liang次ci肥fei，這zhe樣yang，也ye需xu要yao適shi當dang加jia大da春chun季ji追zhui肥fei總zong量liang。
