一、及ji時shi防fang治zhi病bing蟲chong害hai。要yao密mi切qie關guan注zhu各ge類lei病bing蟲chong的de發fa生sheng趨qu勢shi,早zao發fa現xian,早zao防fang治zhi,力li爭zheng把ba病bing蟲chong害hai消xiao滅mie在zai初chu始shi階jie段duan。春chun季ji紅hong蜘zhi蛛zhu和he紋wen枯ku病bing的de防fang治zhi工gong作zuo最zui為wei重zhong要yao,農nong資zi產chan品pin銷xiao售shou者zhe可ke提ti前qian準zhun備bei各ge類lei藥yao劑ji,並bing把ba宣xuan傳chuan做zuo到dao位wei。
二、yinmiaozhiyi,pubianzhonggeng。zaochunyaozhonggeng,danyingyindizhiyi,fenleiguanli。duiyuchangshijiaochahuochangshiyibandemaitian,yingshiduqianzhonggeng,pochubanjie,tiwenbaoshang,cujingenxifayu,shimaimiaozhuanzhuang;duiyuyouwangchangqushidemaitian,yaoshidangshenzhonggeng,duanqibufengenxi,yizhiqiguokuaishengchang,kongwangzhuanzhuang,yifangyudonghai。jinshenzhonggengzhenya,yidingyaozaizhongwuhuoxiawuliangsandianyihoumaimiaoyihuadongshijinxing,yifangzhishangmiao。
三、根據墒情分類管理。及時查看墒情,根據土壤和天氣變化情況采取相應措施。采取耬耙、鎮壓等措施,減少水分消耗,提溫保墒,促進小麥返青生長。早春應及時中耕劃鋤,尤其是對晚播和失墒嚴重的麥田,以促進早分蘖、早轉化。對缺墒嚴重的麥田要及時澆補墒水。
四、預(yu)防(fang)凍(dong)害(hai)。根(gen)據(ju)往(wang)年(nian)經(jing)驗(yan),暖(nuan)冬(dong)常(chang)有(you)倒(dao)春(chun)寒(han)。因(yin)此(ci),要(yao)密(mi)切(qie)關(guan)注(zhu)天(tian)氣(qi)變(bian)化(hua)。在(zai)寒(han)流(liu)來(lai)臨(lin)之(zhi)前(qian),采(cai)取(qu)澆(jiao)水(shui)或(huo)噴(pen)灑(sa)激(ji)素(su)等(deng)措(cuo)施(shi)預(yu)防(fang)凍(dong)害(hai)。一(yi)旦(dan)造(zao)成(cheng)凍(dong)害(hai),要(yao)視(shi)凍(dong)害(hai)程(cheng)度(du)及(ji)時(shi)采(cai)取(qu)中(zhong)耕(geng)、施肥、澆水、噴灑激素等措施補救,將凍害損失降低到最低程度。
一般認為1/3的葉片受凍稱為輕度凍害。在生長健壯,群體合理,墒情不是太差的情況下,原則上不澆返青水。肥水管理可推遲在起身、拔節期,即3月中上旬,每畝追施尿素5-7公斤左右,同時加強中耕,增加地溫,增強根係活動能力,促進弱苗轉壯。
一般認為1/2葉片受凍稱中度凍害。這類麥田占比例相對較大,管理上要以肥水為主,宜促控結合。在日均氣溫穩定在5-6℃時,普遍進行春灌,澆好返青水,同時每畝追施尿素7-10公斤或碳銨15-20公斤為宜。澆水一周後,重點搞好中耕劃鋤。
youdabufenfenniejibufenzhujingdongsiweizhongdudonghai。duizheleimaitianzhuguanshangbunengxieqi,yingjiaqiangfeishuiguanli,yicuweizhu,bingjinxingzhonggeng。jiaoshuiyaozairijunqiwenwendingzai5-6℃時進行,同時每畝追施尿素5-7公斤和複合肥10-15gongjin。jiaoshuiyiqingtianshangwujinxingzuihao,zheyangjingguoyitiandetaiyangfushe,youliyutigaodiwen。jiaoshuiyizhouhouyingpubianqianzhonggeng,zengqiangturangdetouqixing,yitigaodiwen,cujinxiaomaihuifushengchang,jiakuaichunshengniedexingcheng。
對dui於yu極ji個ge別bie地di塊kuai,如ru大da部bu分fen小xiao麥mai分fen蘖nie節jie已yi被bei凍dong死si,在zai調tiao查zha核he實shi後hou,原yuan則ze上shang可ke以yi改gai種zhong春chun播bo作zuo物wu,如ru春chun玉yu米mi或huo蔬shu菜cai等deng經jing濟ji類lei作zuo物wu,以yi彌mi補bu損sun失shi。
暖(nuan)冬(dong)對(dui)小(xiao)麥(mai)生(sheng)長(chang)的(de)影(ying)響(xiang)主(zhu)要(yao)表(biao)現(xian)在(zai)春(chun)季(ji)。如(ru)果(guo)春(chun)季(ji)農(nong)業(ye)管(guan)理(li)措(cuo)施(shi)到(dao)位(wei),沒(mei)有(you)遇(yu)到(dao)惡(e)劣(lie)天(tian)氣(qi)和(he)病(bing)蟲(chong)害(hai)流(liu)行(xing),對(dui)產(chan)量(liang)影(ying)響(xiang)不(bu)是(shi)很(hen)大(da),曾(zeng)經(jing)有(you)過(guo)暖(nuan)冬(dong)天(tian)氣(qi)仍(reng)然(ran)豐(feng)收(shou)的(de)情(qing)況(kuang)。對(dui)旺(wang)長(chang)麥(mai)田(tian)也(ye)不(bu)能(neng)放(fang)任(ren),疏(shu)於(yu)管(guan)理(li)。
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