水(shui)(shui)稻(dao)恶苗病是我(wo)区水(shuiꦡ)(shui)稻(dao)上最(zui)主(zhu)要(yao)的种(zhong)(zhong)传病害(hai)(hai),由区农技(ji)中心抽样送检经市农技(ji)中心检💟测(ce),今(jin)年我(wo)区水(shui)(shui)稻(dao)主(zhu)要(yao)种(zhong)(zhong)植(zhi)品种(zhong)(zhong)稻(dao)种(zhong)(zhong)恶苗病平均带(dai)菌率(lv)(lv)为(wei)3.6%,最(zui)高(gao)8%,带(dai)菌率(lv)(lv)较(jiao)去年略(lve)低。但鉴于去年田间发病普遍,今(jin)年恶苗病仍存在较(jiao)大(da)流(liu)行风险(xian)。稻(dao)种(zhong)(zhong)药剂(ji)处理(li)是控制水(shui)(shui)稻(dao)种(zhong)(zhong)传病害(hai)(hai)最(zui)经济(ji)有效(xiao)的措(cuo)施,为(wei)此(ci)希望各街镇(zhen)及(ji)广大(da)种(zhong)(zhong)植(zhi)户引起高(gao)度重(zhong)视,认真做好水(shui)(shui)稻(dao)种(zhong)(zhong)子处理(li)工作,为(wei)今(jin)年水(shui)(shui)稻(dao)高(gao)产(chan)丰(feng)收打下良好的基础。具体技(ji)术(shu)要(yao)求(qiu)如(ru)下:
一、晒种选种
播前选晴好天气晒种(zhong)1~2天,并精(jing𝐆)选种(zhong)子(zi)(zi),除去秕粒(li)(li)病粒(li)(li)、减(jian)少菌(jun)源,以提高(gao)种(zhong)子(zi)(zi)的(de)发芽势,增🔥强秧苗抗病能(neng)力。
二、药液加(jia)工处理进(jin)行消(xiao)毒技巧
1、清理措施:
每(mei)4kg稻(dao)种(zhong)(亩用种(zhong)量(liang))用浸种(zhong)药剂9ml,采用二次稀释法,先加(jia)少(shao)量(liang)水调(diao)成(cheng)浆糊状,然后再(zai)加(jia)清水6kg稀释,配(pei)成(cheng)药🗹液。将选(xuan)过的(de)稻(dao)种(zhong)4kg(亩用种(zhong)量(liang))浸入(ru)配(pei)成(cheng)的(de)药液中搅(jiao)拌(ban)均匀,以(yi)药液高出种(zhong)子2-3cm为宜。(若稻(dao)种(zhong)数量(liang)多(duo)可(ke)按(an)上述(shu)相应(ying)比例配(pei)制)
2、浸种(꧃zhong)(zhong)时(shi)间(jian)(jian):日(ri)平均气温低于20℃,浸种(zhong)(zhong)时(shi)间(jian)(jian)应为60小时(shi),20℃以上,浸种(zhong)(zhong)时(shi)间(jian)(jian)应在(zai)48小时(shi)💙左右,具(ju)体根据气温变化掌握好时(shi)间(jian)(jian),但浸足(zu)时(shi)间(jian)(jian)是(shi)保证药(yao)效的关键(jian)。
三、需注意法定程序
1、浸种(zhong)(zhong)袋(dai)子(zi)必须要盖,并放置到背阴背光处。严(yan)不可用蛇皮袋(dai)真(zhen)接性(xing)浸种(zhong)(zhong),如꧙不不良影响(xiang)体验。稻种(zhong)(zhong)清洁(jie)消毒后不必须要用水(shui)冲冼,可真(zhen)接性(xing)沥干催芽下种(zhong)(zhong)。
2、解毒剂外理过的种子视频,勿与(yu)吃物、预混(hun)(hun)料放至混(♏hun)(hun)着,不可喂饲禽畜(chu),更不可中用激光(guang)加工(gong)预混(hun)(hun💫)料或(huo)食品类。
3、服药(yao)后应不(bu)要药(yao)液等(deng)(deng)之(z🥃hi)间进(jin)行(xing)室内养(yang)鱼塘、虾🎃(xia)塘等(deng)(deng)鱼业养(yang)殖户的点,不(bu)要引(yin)致鱼、虾(xia)、蟹阵亡。
4、除草(cao)剂(ji)杀(sha)虫剂(ji)包裝(zhuang)扔(reng)掉物(wu)不应所以扔(reng)掉或自(zi)动外(wai)理,实ܫ(shi)时归(gui)还(hai)各项除草(cao)剂(ji)杀(sha)虫剂(ji)包裝(zhuang)扔(reng)掉物(wu)环(huan)保再生(sheng)资源回收点。
浸种除甲醛药剂茶叶品类等详请联系本省飞防个部门。