水稻(dao)恶(e)苗病是(shi)(shi)我区(qu)水稻(dao)上(shang)最主要(yao)的种(zhong)(zhong)传病害,由(you)区(qu♔)农(nong)(nong)技(ji)中心(xin)抽样送检(jian)经市农(nong)(nong)技(ji)中心(xin)检(jian)测(ce),今(jin)(jin)年我区(qu)水稻(dao)主要(yao)种(zhong)(zhong)植品(pin)种(zhong)(zhong)稻(dao)种(zhong)(zhong)恶(e)苗病平(ping)均带菌率为(wei)3.6%,最高8%,带菌率较(jiao)去(qu)年略低(di)。但鉴(jian)于去(qu)年田间(jian)发病普(pu)遍,今(jin)(jin)年恶(e)苗病仍(reng)存在较(jiao)大(da)流行风险。稻(dao)种(zhong)(zhong)药剂处(chu)理是(shi)(shi)控制水稻(dao)种(zhong)(zhong)传病害最经济有效的措施,为(wei)此希(xi)望各街(jie)镇及广大(da)种(zhong)(zhong)植户引(yin)起高度重视(shi),认真做好水稻(dao)种(zhong)(zhong)子处(chu)理工作,为(wei)今(jin)(jin)年水稻(dao)高产(chan)丰收打下(xia)良好的基(ji)础。具体技(ji)术要(yao)求如下(xia):
一、晒种选种
播前(qian)选(xuan)晴好天气晒(shai)种(zhong)1~2天,并精(jing)选(xuan)种(zhong)子(zi)(zi),除(chu)去秕粒(li)病(bing)粒(li)、减少菌源(yuan),以提高种(zhong)子(zi)(zi)的发芽势,增强秧🎃苗(miao)抗病(bing)能力。
二、去除剂的计量解决清洗(xi)技術
1、外理方式方法:
每4kg稻(dao)种(zhong)(zhong)(亩(mu)用(yong)种(zhong)(zhong)量(liang)(liang))用(yong)浸种(zhong)(zhong)药(yao)剂9ml,采用(yong)二次(ci)稀释法,先加(jia)少量(liang)(liang)水(shui)调成(cheng)浆糊状,然后再加(jia)清水(shui)6kg稀释,配成(cheng)药(yao)液(ye)。将选过的(de)稻(dao)种(zhong)(zhong)4kg(亩(mu)用(yong)种(zhong)(zhong)量(liang)(liang))浸入配成(cheng)的(de)药(yao)液(ye)中搅(jiao)拌均匀(yun),以药(yao)液(ye)高出(chu)种(zhong)(zhong)子2-3cm为(wei)宜。(若稻(dao🍃)种(zhong)(zhong)数量(liang)(liang)多(duo)可按上述相应(ying)比例配制(zhi))
2、浸种(zhong)时(shi)间(jian):💛日(ri)平均气(qi)温低(di)于20℃,浸种(zhong)时(shi)间(jian)应(ying)为60小(xiao)时(shi),20℃以上,浸种(zhong)时(shi)间(jian)应(ying)在48小(xiao)时(shi)左右,具体根(gen)据气(qi)温变化(hua)掌握(wo)好时(shi)间(jian),但(dan)浸足时(shi)间(jian)是(shi)保证药效(xiao)的关键。
三、注意力事情
1、浸种容器(🌺qi)类所需盖,并处于阴冷闭(bi)光处。严禁(jin)止蛇皮(pi)袋单(dan)独浸种,切勿影响🍌力疗效。稻种空(kong)气(qi)消毒后(hou)不所需用水冲冼,可单(dan)独沥干催芽下种。
2、解毒剂正确处理(൩li)过的草种子,勿与吃的东西、词料(liao)放一块,不(bu)能喂料(liao)禽畜(chu),更不(bu)能平常手工加(jia)工词料(liao)或食(shi)品饮料(liao)。
3、择药后应应对药液等直接(jie)的(de)排放到(dao🌄)鱼池(chi)、虾塘等鱼业养殖(zhi)场的(de)好地(🦹di)方(fang),应对构成鱼、虾、蟹消亡。
4、化ဣ(hua)肥杀(sha)(sha)菌剂(ji)木箱(xiang)废料物(wu)(wu)不得已擅(shan)自抛弃或立(li)刻应急处(chu)置,按(an)时交给派出机(ji)关化(hua)肥杀(sha)(sha)菌剂(ji)木箱(xiang)废料物(wu)(wu)的回收(shou)利用点。
浸种血药产品等详请询问立即值保职能部门。