水(shui)稻(dao)(dao)恶(e)苗(miao)病(bing)(bing)是(shi)我(wo)区水(shui)稻(dao)(dao)上最主(zhu)要(yao)(yao)的(de)种(zhong)(zhong)传病(bing)(bing)害,由(you)区农(nong)技中心抽样送检经市(shi)农(nong)技中心检测(ce),今(jin)(jin)年(nian)(nian)我(wo)区水(shui)稻(dao)(dao)主(zhu)要(yao)(yao)种(zhong)(zhong)植(zhi)品种(zhong)(zhong)稻(dao)(dao)种(zhong)(zhong)恶(e)苗(miao)病(bing)(bing)平均带(dai)菌(jun)率为(wei)3.6%,最高8%,带(dai)菌(jun)率较去年(nian)(nian)略(lve)低。但鉴于去年(nian)(nian)田间发病(bing)(bing)普遍(bian),今(jin)(jin)年(nian)(nian)恶(e)苗(miao)病🅰(bing)(bing)仍(reng)存(cun)在较大流(liu)行风险。稻(dao)(dao)种(zhong)(zhong)药剂处(chu)理是(shi)控制水(shui)稻(dao)(dao)种(zhong)(zhong)传病(bing)(bing)害最经济(ji)有效的(de)措施,为(wei)此(ci)希(xi)望各(ge)街(jie)镇及(ji)广大种(zhong)(zhong)植(zhi)户引起高度(du)重视,认真(zhen)做好(hao)水(shui)稻(dao)(dao)种(zhong)(zhong)子处(chu)理工作,为(wei)今(jin)(jin)年(nian)(nian)水(shui)稻(dao)(dao)高产丰收打下(xia)良好(hao)的(de)基础。具(ju)体技术(shu)要(yao)(yao)求如下(xia):
一、晒种选种
播前选(xuan)晴好天气晒种(zhong)1~2天,并精(jing)选(xuan)种(zhong)子,除ꦆ去秕(bi)粒病粒、减少菌(jun)源(yuan),♍以提高种(zhong)子的发芽势,增强(qiang)秧苗抗病能力。
二、药物制剂办理灭菌技能
1、净化处理措施:
每4kg稻(dao)种(zhong)(亩用种(zhong)量)用浸种(zhoওng)药(yao)剂(ji)9ml,采用二(er)次稀释法,先(xian)加(jia)少量水(shui)调成(cheng)(cheng)浆糊(hu)状,然后再(zai)加(jia)清水(shui)6kg稀释,配成(cheng)(cheng)药(yao)液(ye)。将选过(guo)的稻(dao)种(zhong)4kg(亩用种(zhong)量)浸入(ru)配成(cheng)(cheng)的药(yao)液(ye)中搅拌(ban)均匀,以药(yao)液(ye)高出种(zhong)子(zi)2-3cm为宜(yi)。(若稻(dao)种(zhong)数量多可按上(shang)述相应比例配制(zhi))
2、浸(jin)种时(shi)间(jian):日平(ping)均气(qi)温(wen)低于20℃,浸(jin)种时(shi)间(jian)应(ying)为60小时(s⛎hi),20℃以上,浸(jin)种时(shi)间(jian)应(ying)在48小时(shi)左右,具体根据气(qi)温(wen)变化(hua)掌握好时(shi)间(jian),但浸(jin)足(zu)时(shi)间(jian)是(shi)保证药效的关键。
三、留意应当
1、浸种(zhong)(zhong)场所(suo)要加盖,并放置到(dao)阴凉处(chu)背(bei)光处(chu)。严停用蛇皮袋可(ke)以浸种(zhong)(zhong),一旦(dan)损害效率。稻种(zhong)(zhong)进(jin)行(xing)消毒(du)后(hou)不(bu)要有(you)温开水冲(chon♔g)冼,可(ke)可(ke)以沥干催芽下种(zhong)(zhong)。
2、血(xue)药正确处理过的种子地址,勿๊与(yu)食材⛎、饲料添加剂厂(chang)(chang)放置一(yi)件,不准喂食禽(qin)畜,更不准用作生产制造饲料添加剂厂(chang)(chang)或商品。
3、服(f🦹u)药后应制止(zhi)药液等(deng)随便排向鱼池(chi)、虾塘等(deng)水产品(pin)生态养殖的部分,制止(zhi)有ღ鱼、虾、蟹生亡。
4、农约外(wai)包(bao)(bao)装机(ji)(ji)废(🗹fei)(fei)物(wu)物(wu)不允许直(zh🎃i)接舍(she)弃或自动处(chu)理(li),及时性归还各级(ji)政府农约外(wai)包(bao)(bao)装机(ji)(ji)废(fei)(fei)物(wu)物(wu)回(hui)收分类(lei)处(chu)理(li)点(dian)。
浸种中和剂品类等详请联系是时间值保部门管理。