水(shui)(shui)稻(dao)恶(e)苗(miao)病是我(wo)区水(shui)(shui)稻(dao)上最主(zhu)要的(de)种(zhong)(zhong)(zhong)(zhong)传病害(hai)(hai),由(you)区农(nong)技(ji)中(zhong)心抽样(yang)送检(jian)经市(shi)农(nong)技(ji)中(zhong)心检(jian)测(ce),今(jin)年(nian)我(wo)区水(shui)(shui)稻(dao)主(zhu)要种(zhong)(zhong൩)(zhong)(zhong)植品种(zhong)(zhong)(zhong)(zhong)稻(dao)种(zhong)(zhong)(zhong)(zhong)恶(e)苗(miao)病平(ping)均带菌率(lv)为3.6%,最高(gao)(gao)8%,带菌率(lv)较(jiao)去(qu)(qu)年(nian)略低。但鉴(jian)于去(qu)(qu)年(nian)田(tian)间发(fa)病普遍(bian),今(jin)年(nian)恶(e)苗(miao)病仍存在较(jiao)大流行风(feng)险(xian)。稻(dao)种(zhong)(zhong)(zhong)(zhong)药剂处理是控制(zhi)水(shui)(shui)稻(dao)种(zhong)(zhong)(zhong)(zhong)传病害(hai)(hai)最经济有(you)效的(de)措施(shi),为此希望各街镇及广大种(zhong)(zhong)(zhong)(zhong)植户引(yin)起高(gao)(gao)度重(zhong)视(shi),认(ren)真做好水(shui)(shui)稻(dao)种(zhong)(zhong)(zhong)(zhong)子处理工作(zuo),为今(jin)年(nian)水(shui)(shui)稻(dao)高(gao)(gao)产丰收打(da)下良好的(de)基(ji)础。具(ju)体技(ji)术(shu)要求如下:
一、晒种选种
⛦播前(qian)选(xuan)晴好天气晒种1~2天,并精选(xuan)种子(zi),除去秕粒病粒、减少菌源,以(yi)提高(gao)种子(zi)的发芽(ya)势,增强(qiang)秧💯(yang)苗抗病能力。
二、解毒(du)剂办理空气消毒(du)水平
1、处置方法步骤:
每4kg稻(dao)种(zhong)(zhong)(亩(mu)用(yong)种(zhong)🐻(zhong)量)用(yong)浸种(zhong)(zhong)药剂(🏅ji)9ml,采(cai)用(yong)二次稀(xi)释法,先加少量水调成浆糊状,然后再加清水6kg稀(xi)释,配成药液。将选过(guo)的(de)稻(dao)种(zhong)(zhong)4kg(亩(mu)用(yong)种(zhong)(zhong)量)浸入配成的(de)药液中(zhong)搅拌均匀,以药液高出种(zhong)(zhong)子2-3cm为(wei)宜。(若稻(dao)种(zhong)(zhong)数(shu)量多可按上(shang)述相(xiang)应比例配制)
2、浸(jin)种时(shi)间(jian):日平均气温(wen)低(di)于(yu)20℃,浸(jin)种时(shi)间(jian)应(ying)为(wei)60小时(shi),20℃以上,浸(jin)种时(shi)间(jian)应(ying)在(zai)48小时(shi)左右,具体(ti)根据气温(wen)变化掌握好时(shi)间(jian),但浸(jin)足时(shi)间(jian)是保(bao)🍃证(zheng)药效(xiao)的(de)关键(jian)。
三、重视事情
1、浸(jin)种(zhong)(zhong)贮槽要加盖,并ꦜ处于阴冷(leng)遮(zhe)光处。严阻止蛇皮袋真接浸(jin)种(zhong)(zhong),进而(er)关(guan)系使用效果。稻种(zhong)(zhong)清洗后不所(suo)需温(wen)水(shui)冲冼,可真接沥干催(cui)芽种(zhong)(zhong)植。
2、化学剂正确处理过(guo)的(🃏de)种(zhong)子图片,勿与(yu)食用、伺料放置共(gong)同,不可喂饲禽畜(chu),更不可把他(ta)们拿来生产伺料或(huo)食材。
3、联合用药(yao)后应以免(mian) 药(yao)液(ye)等(deng)随(sui)便污(wu)水排放养鱼塘(tang)、虾(xia)塘(tang)等(deng)水产家庭(ting)养殖(zhi)家庭(ting)养殖(zhi)的敌方,以免(miᩚᩚᩚᩚᩚᩚᩚᩚᩚ𒀱ᩚᩚᩚan) 出现鱼、虾(xia)、蟹自杀(sha)。
ಌ4、药剂(ji)设计垃圾物不允许(xu)简单丟弃或实(shi)(shi)时救治(zhi),实(shi)(shi)时交给(ji)各项药剂(ji)💫设计垃圾物收集点(dian)。
浸种化剂明细等详请咨询服务场地植物保护单位。