水稻胡麻斑病
水稻胡麻斑病是由平臍蠕孢黴菌侵染引起的真菌病害。
[診斷] 該病在水稻各生育期和地上各部位均可發生,以葉片發病最普遍,其次為穀粒、suijinghezhigengdeng。yepianshouhaihouchuweixiaohedian,houkuodaweituoyuanxinghesebingban,yindaxiaosihumazi,guchengzhiweihumabanbing。bingbanbianyuanmingxian,waiweichangyouhuangseyunquan,houqibingbanzhongyangchenghuihuanghuohuibaise。yanzhongshibingbanmisheng,changxianglianhe,xingchengbuguizedaban。gulishangbingbanyuyepianshangbingbanxiangsi,kekuozhanzhiquanguli,shidudashineiwaiyinghefengchujigulibiaomianchanshengdaliangheiserongmaozhuangmeiceng。suijinghezhigengshouhai,zhengzhuangyudaowenbingxiangsi,danbingbuchengshenhese,biansebujiaochang。
[發病規律] bingjunyifenshengbaozifuzhezaidaozhonghuobingdaocaoshanghuojunsitiqianfuyubingdaocaoneiyuedong。yinianbozhonghoudaogushangdebingjunkezhijieqinranyoumiao,bingdaocaoshangdebingjunchanshengdaliangfenshengbaozi,suiqiliuchuanbo,yinqiyangtianhebentiandeqinran。gaibingjundeqinranduiqixiangyinziyaoqiubuyange,danbodi、砂質土、酸性土、缺肥、缺水、長期積水、日照不足、根部受傷等引起水稻生長發育不良的因子對病害的發生均有利。
[防治] 該(gai)病(bing)以(yi)農(nong)業(ye)防(fang)治(zhi)為(wei)主(zhu),加(jia)強(qiang)深(shen)耕(geng)改(gai)土(tu)和(he)肥(fei)水(shui)管(guan)理(li),輔(fu)以(yi)藥(yao)劑(ji)防(fang)治(zhi)。改(gai)土(tu)以(yi)增(zeng)施(shi)有(you)機(ji)肥(fei),適(shi)量(liang)使(shi)用(yong)生(sheng)石(shi)灰(hui),促(cu)進(jin)有(you)機(ji)質(zhi)分(fen)解(jie)。另(ling)外(wai),在(zai)施(shi)足(zu)基(ji)肥(fei)的(de)同(tong)時(shi)注(zhu)意(yi)氮(dan)、磷、鉀肥的配合使用,科學使用微量元素肥料,如鋅肥等。藥劑防治參照稻瘟病。
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