水稻(dao)(dao)恶(e)(e)苗病(bing)(bing)是我区水稻(dao)(dao)上最(zui)主要的(de)种(zhong)(zhong)传(chuan)病(bing)(bing)害,由(you)区农(nong)技(ji)中(zhong)心(xin)抽样送检经(jing)市农(nong)技(ji)中(zhong)心(xin)检测,今(jin)(jin)年(nian)(nian)(nian)我区水稻(dao)(dao)主要种(zhong)(zhong)植(zhi)品种(zhong)(zhong)稻(dao)(dao)种(zhong)(zhong)恶(e)(e)苗病(bing)(bing)平(ping)均带菌率(lv)为3.6%,最(zui)高8%,带菌率(lv)较去年(nian)(nian)(nian)略低。但鉴(jian)于去年(nian)(nian)(nian)田间发(fa)病(bing)(bing)普遍,今(jin)(jin)年(nian)(nian)(nian)恶(e)(e)苗病(bing)(bing)仍存在较大流行风险。稻(dao)(dao)种(zhong)(zhong)药剂处理(li)是控制水稻(dao)(dao😼)种(zhong)(zhong)传(chuan)病(bing)(bing)害最(zui)经(jing)济有(you)效的(de)措施,为此希望各街镇及(ji)广大种(zhong)(zhong)植(zhi)户引(yin)起高度重视(shi),认(ren)真做好(hao)水稻(dao)(dao)种(zhong)(zhong)子处理(li)工作,为今(jin)(jin)年(nian)(nian)(nian)水稻(dao)(dao)高产(chan)丰收打下良好(hao)的(de)基础。具(ju)体技(ji)术要求(qiu)如下:
一、晒种选种
播前(qian)选晴(qing)好天气晒种(zhong)1~2天,并精选种(zhong♑)子(zi),除(chu)去秕(bi♔)粒病粒、减少菌源,以提高(gao)种(zhong)子(zi)的(de)发芽(ya)势,增强秧苗(miao)抗病能力。
二、去(qu)除剂(ji)的计量清理消毒液的技术(shu)
1、正确处理办法:
每4kg稻(dao)种(zhong)(zhong)(zhong)(zhong)(亩用(yong)(yong)种(zhong)(zhong)(zhong)(zhong)量)用(yong)(yong)浸种(zhong)(zhong)(zhong)(zhong)药剂9ml,采用(yong)(yong)二次稀(xi)释(shi)法,先(xian)加(jia)꧑少量水调成浆糊状(zhuang),然(ran)后再加(jia)清水6kg稀(xi)释(shi),配成药液。将选(xuan)过的(de)稻(dao)种(zhong)(zhong)(zhong)(zhong)4kg(亩用(yong)(yong)种(zhong)(zhong)(zhong)(zhong)量)浸入配成的(de)药液中搅(jiao)拌均匀(yun),以药液高出种(zhong)(zhong)(zhong)(zhong)子2-3cm为宜(yi)。(若稻(dao)种(zhonಌg)(zhong)(zhong)(zhong)数量多可(ke)按上述(shu)相应比(bi)例配制)
2、浸种(zhong)时(shi)(shi)间(jian):日平均气温(wen)低于(yu)20℃,浸种(zhong)时(shi)(shi)间(jian)应为(wei)60小(xiao)时(shi)(shi),20℃以上,浸种(zhong)时(shi)(shi)间(jian)应在48小(xiao)时(shi)(shi)左右,具体(ti)根据气💦温(wen)变化掌握(wo)好(hao)时(shi𝓰)(shi)间(jian),但浸足时(shi)(shi)间(jian)是保证(zheng)药效(xiao)的关(guan)键。
三、准备法定程序
1、浸(jin)种(zhong)(zhong)不(bu)锈钢容器要加盖,并居(ju)于通风遮光处。严禁止使用蛇皮袋随(sui)(sui)便浸(jin)种(zhong)(zhong),避(bi)免会影响效果(guo)好(hao)。稻种💎(zhong)(zhong)紫外(wai)线消毒后不(bu)是需(xu)要纯(chun)净(jing)水冲冼,可随(sui)(sui)便沥干催芽下种(zhong)(z🌠hong)。
2、制剂进行处理过的種子,勿(w🔥u)与(yu)口味♔、伺料摆放在一并,不允许(xu)当喂料禽(qin)畜,更不允许(xu)当也可以加工(gong)工(gong)艺伺料或调味品(pin)。
3、服(fu)药(yao)后应(ying)应(ying)对药(yao)液等(deng)随(sui)便污水(shui)排放(fang)渔塘(tang)、虾塘(tang)等(ꦗdeng)海产(chan)品养植的的地方(fang),应(ying)对形成鱼(yu)、虾、蟹消亡。
4、化(hua)肥杀(sha)虫(chong)剂(ji)包装(zhuang)设(she)计(ji)(ji)盒(he)废(fei)(fei)置(zhi)物不得已隨(sui)意舍弃(qi)或(huo)自(zi)己(ji)进行处(chu)理,适时归还地方党委(wei)化(hua)💯肥杀(sha)虫(chong)剂(ji)包装(zhuang)设(she)计(ji)(ji)盒(he💝)废(fei)(fei)置(zhi)物回收利用点。
浸种化学剂产品种类等详请询问本地飞防部们。