水(shui)稻(dao)(dao)(dao)(dao)恶(e)苗(miao)病是我(wo)区水(shui)稻(dao)(dao)(dao)(dao)上最主(zhu)要的(de)种(zhong)(zhong)(zhong)传(chuan)病害,由区农技(ji)中(zhong)心抽样(ℱyang)送检(jian)经市农技(ji)中(zhong)心检(jian)测,今(jin)年(nian)(nian)我(wo)区水(shui)稻(dao)(dao)(dao)(dao)主(zhu)要种(zhong)(zhong)(zhong)植(zhi)品种(zhong)(zhong)(zhong)稻(dao)(dao)(dao)(dao)种(zhong)(zhong)(zhong)恶(e)苗(miao)病平均带(dai)菌率为(wei)3.6%,最高8%,带(dai)菌率较(jiao)去(qu)年(nian)(nian)略低。但(dan)鉴于(yu)去(qu)年(nian)(nian)田间发病普遍,今(jin)年(nian)(nian)恶(e)苗(miao)病仍(reng)存在较(jiao)大流行(xing)风险(xian)。稻(dao)(dao)(dao)(dao)种(zhong)(zhong)(zhong)药剂处理(li)是控制水(shui)稻(dao)(dao)(dao)(dao)种(zhong)(zhong)(zhong)传(chuan)病害最经济(ji)有效的(de)措施,为(wei)此希(xi)望各街镇及(ji)广大种(zhong)(zhong)(zhong)植(zhi)户(hu)引起高度重视,认真做好水(shui)稻(dao)(dao)(dao)(dao)种(zhong)(zhong)(zhong)子(zi)处理(li)工作,为(wei)今(jin)年(nian)(nian)水(shui)稻(dao)(dao)(dao)(dao)高产丰(feng)收打下(xia)良好的(de)基础。具(ju)体技(ji)术(shu)要求如(ru)下(xia):
一、晒种选种
播前选晴(qing)好天(tian)气晒(shai)种(zhong)(zhong)1~2天(tian),并精选种(zhong)(zhong)子,除去秕(bi)粒(li)病粒(li)、减少(shao)菌源,以提高种(zhong)(zhong)子的发(fa)芽🌠势,增强秧苗抗(kang)病能(neng)力。
二(er)、药物(wu)制剂除(chu)理消毒液技(ji)术水平
1、正确处理方式(shi) :
每4kg稻(dao)(dao)种(zhong)(亩用种(zhong)量)用浸(jin)种(zhong)药(yao)剂9ml,采用🌟二次稀(xi)释法,先加少量水调成浆(jiang)糊状(zhuang),然(ran)后再加清水6kg稀(xi)释,配(🍒pei)成药(yao)液(ye)。将选过的稻(dao)(dao)种(zhong)4kg(亩用种(zhong)量)浸(jin)入配(pei)成的药(yao)液(ye)中搅拌均(jun)匀,以(yi)药(yao)液(ye)高出种(zhong)子2-3cm为宜。(若稻(dao)(dao)种(zhong)数量多可按上(shang)述(shu)相(xiang)应比例配(pei)制)
2、浸♍种(zhong)(zhong)时(shi)间:日平均气(qi)温低于20℃,浸种🎉(zhong)(zhong)时(shi)间应为60小时(shi),20℃以(yi)上,浸种(zhong)(zhong)时(shi)间应在48小时(shi)左右,具(ju)体根据气(qi)温变化掌(zhang)握好(hao)时(shi)间,但(dan)浸足(zu)时(shi)间是(shi)保(bao)证药效(xiao)的关键。
三、提前准备事情
1、浸(jin)种(zhong)容器设计要(yao)加盖,并(ꦗbing)放(fang)置在阴暗处背光(guang)处。严关(guan)闭蛇皮袋(dai)可(ke)以(yi)(yi)直观(guan)浸(jin)种(zhong),容易应响成效。稻(dao)种(zhong)紫外线灯消毒后不要(yao)有只用清水冲冼(xian),可(ke)可(ke)以(yi)(yi)直观(guan)沥干催芽(ya)下种(zhong)。
2、的药剂除理(li)过的种子𝐆吧(ba),勿与(yu)吃物、精(jing)伺料放一同,不恰喂养禽畜(chu),更不恰用做生产(chan)加工(gong)精(jing)伺料或食品(pin)饮(yin)ౠ料。
3、使用药物后应(ying)以免药液等(deng)随时排进鱼池、虾(xia)塘等(deng)海(h✤ai)产品养殖户(hu)的(de)平台,以免会导致鱼、虾(xia)、蟹死亡者。
4、除(chu)草(cao)(c🃏ao)剂木(mu)箱机(ji)(ji)舍(she)弃物严禁自(zi)由舍(she)弃或强制(zhi)外理(li),实时归还地方党委除(chu)草(cao)(cao)剂⭕木(mu)箱机(ji)(ji)舍(she)弃物利(li)用点。
浸种化学剂蔬菜品种等详请询问场地飞防单位。