水(shui)(shui)稻(dao)(dao)恶(e)苗病(bing)是(shi)我区(qu)(qu)(qu)水(shui)(shui)稻(dao)(dao)上最主要(yao)(yao)的种(zhong)(zhong)传(chuan)病(bing)害,由区(qu)(qu)(qu)农技中心抽样送检(jian)经(jing)市(shi)农技中心检(jian)测,今年(nian)(nian)(nian)我区(qu)(qu)(qu)水(shui)(shui)稻(dao)(dao)主要(yao)(yao)种(zhong)(zhong)植(zhi)品种(zhong)(zhong)稻(dao)(dao)种(zhong)(zhong)恶(e)苗病(bing)平(ping)均带(dai)菌(jun)率为3.6%,最高(gao)(gao)8%,带(dai)菌(jun)率较(jiao)去年(nian)(nian)(nian)略低(di)。但鉴于去年(nian)(nian)(nian)田间发病(bing)普(pu)遍,今年(nian)(nian)(nian)恶(e)苗病(bing)仍(reng)存在较(jiao)大(da)(da)流(liu)行风险。稻(dao)(dao)种(zhong)(zhong)药剂处(chu)理是(shi)控制水(shui)(shui)稻(dao)(dao)种(zhong)(zhong)传(chuan)病(bing)害最经(j✃ing)济有效的措施,为此希(xi)望各街镇及广大(da)(da)种(zhong)(zhong)植(zhi)户引起高(gao)(gao)度重视,认真做好水(shui)(shui)稻(dao)(dao)种(zhong)(zhong)子处(chu)理工作,为今年(nian)(nian)(nian)水(shui)(shui)稻(dao)(dao)高(gao)(gao)产丰收打下良好的基础。具体技术要(yao)(yao)求如下:
一、晒种选种
播前选(xuan༒)晴好天气晒种(zhong)(zhong)1~2天,并(bing)精(jing)选(xuan)种(zhong)(zhong)子(zi),除去秕粒(li)病粒(li)、减少菌源,以提高种(zhong)(zhong🌸)子(zi)的(de)发芽(ya)势(shi),增强秧(yang)苗抗病能力。
二、解毒药进行处理紫外线消毒技巧
1、净化处理的方式(shi):
每4kg稻(dao)种(亩(mu)用(yong)种量(liang))用(yong)浸种药(yao)剂9ml,采用(yong)二次稀释法,先加少量(liang)水调成(cheng)浆糊(hu)状,然后再加清(qing)水6kg稀释,配成(cheng)药(yao)液。将选过的稻(dao)种4kg(亩(mu)用(yong)种量(liang))浸入配成(ch༒eng)的药(yao)液中搅拌均(j༒un)匀,以药(yao)液高出种子2-3cm为宜。(若稻(dao)种数量(liang)多可按上述相应比例(li)配制)
2、浸(jin)(jin)种时(shi)(shi)(shi)间(jian):日平均气(qi)温(wen)低于(yu)20℃,浸(jin)(jin)种时(shi)(sh𒐪i)(shi)间(jian)应为(wei)60小(xiao)时(shi)(shi)(shi),20℃以上(shang),浸(jin)(jin꧅)种时(shi)(shi)(shi)间(jian)应在48小(xiao)时(shi)(shi)(shi)左右,具体根据气(qi)温(wen)变化掌握好时(shi)(shi)(shi)间(jian),但浸(jin)(jin)足时(shi)(shi)(shi)间(jian)是保(bao)证药效的(de)关键。
三、主要应当
1、浸(jin)(jin)种(zhong)容器类要加盖,并居(ju)于阴(yin)暗处闭光处。严阻止蛇皮(pi)袋(dai)简(jian)单浸(j🐓in)(jin)种(zhong),免得影响到(dao)作用(yong)。稻种(zhong)消毒杀菌(jun)后不需用(yong)江(jiang)水冲冼,可简(jian)单沥干催芽载种(zhong)。
2、制剂(ji)(ji)生产(chan)制造(zao)处理过的种子(zi)视频,勿与饮(yin)食、饲料添(tian)加(jia)剂(ji)(ji)添(tian)加(jia)剂(ji)(ji)放着一并,不(bu)恰喂食禽畜,更不(bu)恰用生产(chan)制造(zao)ꩵ饲料添(tian)加(jia)剂(ji)(ji)添(tian)加(jia)剂(ji)(ji)或食物。
3、联合用药后🦩应防(fang)止(zhi)出现ꦿ药液等就直接直排到水塘(tang)、虾(xia)塘(tang)等渔业家庭养殖(zhi)的特点,防(fang)止(zhi)出现发(fa)生(sheng)鱼、虾(xia)、蟹枯(ku)死。
4、化肥(fei)封装(zhuang)方式垃圾物(wu)处理(li)(li)物(wu)不准隨意扔掉或(huo)强(qiang)制正确处理(li)(li),实时交🃏给(ji)县级化肥(fei)封装(zhuang)方式垃圾物(wu)处理(li)(li)物(wu)回笼(long)点(dian)。
浸种药物制剂茶叶品类等详请顾问本市飞防政府部门。