水稻(dao)(dao)恶苗病(bing)是我(wo)区水稻(dao)(dao)上最(zui)主要的(de)(de)种(zhong)(zhong)(zhong)(zhong)传病(bing)害,由区农技(ji)中心抽样送检(jian)经市农技(ji)中心检(jian)测,今(jin)年我(wo)区水稻(dao)(dao)主要种(zhong)(zhong)(zhong)(zhong)植品(pin)种(zhong)(zhong)(zhong)(ꦍzhong)稻(dao)(dao)种(zhong)(zhong)(zhong)(zhong)恶苗病(bing)平均带(dai)菌率(lv)为3.6%,最(zui)高♒8%,带(dai)菌率(lv)较去年略低(di)。但(dan)鉴于(yu)去年田(tian)间发(fa)病(bing)普遍,今(jin)年恶苗病(bing)仍存(cun)在(zai)较大流行风(feng)险(xian)。稻(dao)(dao)种(zhong)(zhong)(zhong)(zhong)药剂处(chu)理(li)是控制水稻(dao)(dao)种(zhong)(zhong)(zhong)(zhong)传病(bing)害最(zui)经济有效(xiao)的(de)(de)措施,为此希望各街镇及广(guang)大种(zhong)(zhong)(zhong)(zhong)植户引(yin)起高度重视,认(ren)真做好水稻(dao)(dao)种(zhong)(zhong)(zhong)(zhong)子处(chu)理(li)工作(zuo),为今(jin)年水稻(dao)(dao)高产丰收打下良(liang)好的(de)(de)基础。具体技(ji)术要求如下:
一、晒种选种
播前选晴好天气晒种(zhong)1~2天,并精选种(zho𒐪ng)子,除去秕粒病粒、减少(shao)菌源,以提高(gao)种(zhong)子的(de)发芽(ya)势,增强秧苗抗病能力。
二、血(xue)药(yao)解决进行消毒高(gao)技术
1、正确处理策略:
每(mei)4kg稻(dao)(dao)种(zhong)(亩用(yong)(yong)(yong)种(zhong)量(liang))用(yong)(yong)(yong)浸种(zhong)药(yao)剂9ml,采(cai)用(yong)(yong)(yong)二次稀释法,先加少量(liang)水调成浆糊状,然后再加清水6kg稀释,配成药(yao)液。将选过的稻(dao)(dao)种(zhong)4kg(亩用(yong)(yong)(yong)种(zhong)量(liang))浸入(ru)配成的药(yao)液中(zh🦂ong)搅拌(ban)均(jun)匀,以药(yao)液高出种(zhong)子(zi)2-3cm为宜。(若稻(dao)(dao)种(zhong)数量(liang)多可按上述相应比例配制(zhi))
2、浸种(zhong)(zhong)时(shi)间(jia𒀰n)(jian):日平(ping)均气温低于20℃,浸种(zhong)(zhong)时(shi)间(jian)(jian)应(ying)为60小(xiao)时(shi),20℃以上(shang),浸种(zhong)(zhong)时(shi)间(jian)(jian)应(ying)在48小(xiao)时(shi)左右,具(ju)体根据气温变化掌握好时(shi)间(jian)(jian),但浸足时(shi)间(jian)(jian)是保(bao)证药效的(de)关键。
三、注意要点要点
1、浸种(zhong)溶器要(yao)加(jia)盖,并放置于(yu)阴凉处阴凉处。🌠严停(ting)止使(shi)用(yong)(yong)蛇皮袋会浸种(zhong),避免损害作用(yong)(yong)。稻种(zhong)进行消毒后(hou)不🤡要(yao)自来水冲冼(xian),可会沥干(gan)催芽(ya)载种(zhong)。
2、解毒药(yao)解决过的(de)草种子,勿与(yu)粮食、预🐼(yu)混料放于一块儿(er),允许(xu)喂(wei)饲禽畜,更允许(xu)用粗加工预(yu)混料或面制品(pin)。
3、药物(wu)治疗后应以免(mian) 药液等同时直排水(shui)塘、虾(xia)塘等水(shui)产品生(sheng)态养殖的(de)区(qu)域,以免(mian) 容易造(zao)成(chen💛g)鱼、虾(xia)、蟹(xie)窒息死亡。
4、农(nong)药杀虫(chong)剂(ji)(ji🗹)杀虫(chong)剂(ji)(ji)包(bao)装设(she)计袋废(fei)物(wu)物(wu)没法自(zi)由(you)选择丢掉或自(zi)主应对,尽早交给地(di)方党(dang)委农(nong)药杀虫(chong)剂(ji)(ji)杀虫(chong)剂(ji)(ji)包(bao)装设(she)计袋废(fei)物(wu)物(wu)回收并点(dian)。
浸种药水款式等详请了解本省值保行政部门。