冬小麦田间管理五要点胖墩小麦叶面肥控旺营养叶面肥

<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: ; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: " helvetica="" hiragino="" sans="" microsoft="" white-space:="" background-color:="" box-sizing:="" border-box="" word-wrap:="" break-word=""><span style="margin: 0px; padding: 0px; max-width: ; box-sizing: border-box !important; word-wrap: break-word !important; font-size: 20px;"><span style="margin: 0px; padding: 0px; max-width: ; color: rgb(51, 51, 51); font-family: Simsun; line-height: 24px; text-indent: 28px; box-sizing: border-box !important; word-wrap: break-word !important;">做好冬小麦的田间管理工作应抓好以下几项措施：</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: ; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: " helvetica="" hiragino="" sans="" microsoft="" white-space:="" background-color:="" box-sizing:="" border-box="" word-wrap:="" break-word=""><span style="margin: 0px; padding: 0px; max-width: ; box-sizing: border-box !important; word-wrap: break-word !important; font-size: 20px;"><br style="margin: 0px; padding: 0px; max-width: ; color: rgb(51, 51, 51); font-family: Simsun; line-height: 24px; text-indent: 28px; box-sizing: border-box !important; word-wrap: break-word !important;"/></span><span style="margin: 0px; padding: 0px; max-width: ; font-size: 20px; color: rgb(51, 51, 51); font-family: Simsun; line-height: 24px; text-indent: 28px; box-sizing: border-box !important; word-wrap: break-word !important;">　　一要：加强三类苗管理。三类苗应抓住冬前未封冻的有利时机，管理，促根生长。要及时划锄松土，提高地温。对于底墒较好的晚茬麦田，一般不浇冬水，以免降低地温；对于底墒较差的晚茬麦，应选晴天浇冬水，底肥不足的可施适量化肥。</span><br style="margin: 0px; padding: 0px; max-width: ; color: rgb(51, 51, 51); font-family: Simsun; font-size: 14px; line-height: 24px; text-indent: 28px; box-sizing: border-box !important; word-wrap: break-word !important;"/><span style="margin: 0px; padding: 0px; max-width: ; font-size: 20px; color: rgb(51, 51, 51); font-family: Simsun; line-height: 24px; text-indent: 28px; box-sizing: border-box !important; word-wrap: break-word !important;">　　二要：及时浇好越冬水。浇冬水有利于沉实土壤，麦苗安全越冬，有利于麦田贮存水分，为翌年早春小麦返青、起身提供良好的墒情，争取管理上的主动。因此，有水浇条件的地方，应适时浇好越冬水，黄淮海麦区在11月底、12月初为适宜浇冬水的时间。对底施氮、磷化肥不足的地块，或缺苗、苗势弱的地块，或缺肥地块，要结合浇冬水适量追施氮、磷化肥。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: ; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: " helvetica="" hiragino="" sans="" microsoft="" white-space:="" background-color:="" box-sizing:="" border-box="" word-wrap:="" break-word=""><span style="margin: 0px; padding: 0px; max-width: ; font-size: 20px; color: rgb(51, 51, 51); font-family: Simsun; line-height: 24px; text-indent: 28px; box-sizing: border-box !important; word-wrap: break-word !important;">　　三要：抓好越冬前旺苗管理。当前对旺苗管理应以控为主。一是镇压。封冻前均可用石磙或机械镇压，控制地上部生长和过多分蘖发生。镇压次数视苗情而定，一般旺苗麦田镇压1～2次即可。二是深锄断根。对于过旺麦田，除镇压外，可在冬前每亩总茎数达到60万以上时进行深锄断根，深度10厘米左右，锄后要耧平压实土壤，防止透风遭受冻害。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: ; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: " helvetica="" hiragino="" sans="" microsoft="" white-space:="" background-color:="" box-sizing:="" border-box="" word-wrap:="" break-word=""><span style="margin: 0px; padding: 0px; max-width: ; box-sizing: border-box !important; word-wrap: break-word !important; font-size: 20px;"></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: ; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: " helvetica="" hiragino="" sans="" microsoft="" white-space:="" background-color:="" box-sizing:="" border-box="" word-wrap:="" break-word=""><img style="max-width:710px" style="margin: 0px; padding: 0px; height: auto !important; max-width: ; box-sizing: border-box !important; word-wrap: break-word !important; width: auto !important; visibility: visible !important;" data-s="300,640" data-type="jpeg" data-src="?wx_fmt=jpeg" data-ratio="0.69964" data-w="" src="?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1" data-fail="0"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: ; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: " helvetica="" hiragino="" sans="" microsoft="" white-space:="" background-color:="" box-sizing:="" border-box="" word-wrap:="" break-word=""><span style="margin: 0px; padding: 0px; max-width: ; box-sizing: border-box !important; word-wrap: break-word !important; font-size: 20px;"><br style="margin: 0px; padding: 0px; max-width: ; color: rgb(51, 51, 51); font-family: Simsun; line-height: 24px; text-indent: 28px; box-sizing: border-box !important; word-wrap: break-word !important;"/></span><span style="margin: 0px; padding: 0px; max-width: ; font-size: 20px; color: rgb(51, 51, 51); font-family: Simsun; line-height: 24px; text-indent: 28px; box-sizing: border-box !important; word-wrap: break-word !important;">　　四要：适时划锄，灭草保墒。冬前划锄，既有保墒提墒的作用，又可消灭杂草。因此，当小麦冬前遇雨、冬灌或因其他原因造成土壤板结时，对各类麦田应及时进行划锄，以破除板结，通过保墒，促进根系和幼苗的健壮生长。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: ; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: " helvetica="" hiragino="" sans="" microsoft="" white-space:="" background-color:="" box-sizing:="" border-box="" word-wrap:="" break-word=""><span style="margin: 0px; padding: 0px; max-width: ; font-size: 20px; color: rgb(51, 51, 51); font-family: Simsun; line-height: 24px; text-indent: 28px; box-sizing: border-box !important; word-wrap: break-word !important;">　　五要：加强病虫草害防治工作。当前要抓好以条锈病纹枯病、蚜虫、地下害虫和杂草等为主的病虫草害防治工作。对小麦条锈病，要坚持“发现一点，控制一片”的策略，大限度地减少越冬菌源。菌源区的甘肃、四川等地，要开展大面积化学防治，控制菌源，减少对其他麦区的压力；要选择、安全的除草剂进行化学除草，减轻草害；确保全苗过冬；对纹</span><span style="margin: 0px; padding: 0px; max-width: ; color: rgb(51, 51, 51); font-family: Simsun; font-size: 20px; line-height: 24px; text-indent: 28px; box-sizing: border-box !important; word-wrap: break-word !important;">枯病达标田进行防治，压低中后期病害基数。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: ; min-height: 1em; color: rgb(62, 62, 62);" helvetica="" hiragino="" sans="" microsoft="" white-space:="" background-color:="" box-sizing:="" border-box="" word-wrap:="" break-word=""><span style="margin: 0px; padding: 0px; max-width: ; font-size: 20px; color: rgb(51, 51, 51); font-family: Simsun; line-height: 24px; text-indent: 28px; box-sizing: border-box !important; word-wrap: break-word !important;"><img style="max-width:710px" style="margin: 0px; padding: 0px; max-width: ; line-height: 1.6; height: auto !important; box-sizing: border-box !important; word-wrap: break-word !important; width: auto !important; visibility: visible !important;" data-s="300,640" data-type="jpeg" data-src="?wx_fmt=jpeg" data-ratio="0.69964" data-w="" src="?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1" data-fail="0"/></span></p>