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果树日灼病的发病规律及防治技巧

   2015-01-13 1783
核心提示:果树日灼病也称日烧病,普遍发生于北方果树园,干旱年份发生尤为严重。果树日灼病常发生在桃、苹果、梨和葡萄等果树枝干及果实上。下面给大家介绍果树日灼病的发生规律及防治技巧。

guoshurizhuobingyechengrishaobing,pubianfashengyubeifangguoshuyuan,ganhannianfenfashengyouweiyanzhong。guoshurizhuobingchangfashengzaitao、pingguo、liheputaodengguoshuzhiganjiguoshishang。xiamianjidajiajieshaoguoshurizhuobingdefashengguilvjifangzhijiqiao。

 

yi、guoshurizhuobingdefashengguilv:

1、夏季发生

guoshurizhuobingxiajichangfashengzaishuifenbuzuyingxiangzhengteng,bunengdiaojieshutiwendu,shizhigandepicengheguoshiyinshoutaiyangzhishesuozhi。zhiganshouhai,shupichuxianbianse、bandian,zuihoujubuganku;guoshifasheng,guoshichanshengjinyuanxinghuobuguizedehesehuaisiban。

2、冬春发生

guoshurizhuobingdongchunfasheng,zhuyaofashengzaidongjihezaochun,youyuguoshuxibaodongjie,baitianyouyuyangguangzhishe,wendushenggao,yewanwendujujiang,zhishiguoshuyindongjieershiguoshupicengxibaohuaisisuozaocheng。

 

er、guoshurizhuobingdefangzhijiqiao:

1、dongchunguoshurizhuobingyufang。yufangdongchunguoshurizhuobing,zhuyaoyingcaiquzengqiangguoshukanghanxingnengdengyixiliecuoshi,tongshijinxingshugantubai,fanshetaiyangguang,yihuanheguoshushupidewendujubian。

       2、夏日日灼病的预防。预防夏日果树日烧(灼)病,主要是在修剪时及时疏果,适当多留西南侧果树枝条,增加果树叶片数量,以减少阳光直射果树枝干和果实直接曝晒在阳光下的机会。同时还要保证夏季高温期间果树的水分供应,减低树体温度。
 
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