水(shui)(shui)稻(dao)(dao)恶苗(miao)病(bing)(bing)是(shi)我区水(shui)(shui)稻(dao)(dao)上最(zui)主(zhu)要(yao)的(de)种(zhong)(zhong)(zhong)传病(bing)(bing)害,由区农技(ji)(ji)中心抽样(yang)送检(jian)经市(shi)农技(ji)(ji)中心检(jian)测,今年我区水(shui)(shui)稻(dao)(dao)主(zhu)要(yao)种(zhong)(zhong)(zhong)植(zhi)品种(zhong)(zhong)(zhong)稻(dao)(dao)种(zhong)(zhong)(zhong)恶苗(miao)病(bing)(bing)平均带(dai)菌(jun)率为3.6%,最(zui)高(gao)8%,带(dai)菌(jun)率较(jiao)去年略低。但鉴(jian)于(yu)去年田间发病(bing)(bing)普(pu)遍,今年恶苗(miao)病(bing)(bing)仍存(cun)在较(jiao)大(da)流行风险。稻(dao)(dao)种(zhong)(zhong)(zhong)药剂处理(li)是(shi)控制水(shui)(shui)稻(dao)(dao)种(zhong)(zhong)(zhong)传病(bing)(bing)害最(zui)经济有(you)效的(de)措(cuo)施,为此希望各街镇及广大(da)种(zhong)(zhong)(zhong)植(zhi)户引(yin)起高(gao)度重视,认(ren)真做好水(shui)(shui)稻(dao)(dao)种(zhong)(zhong)(zhong)子处理(li)工作,为今年水(shui)(shui)稻(dao)(dao)高(gao)产(chaꦡn)丰收打下(xia)良好的(de)基础。具体技(ji)(ji)术要(yao)求如下(xia):
一、晒种选种
播前(qian)选晴好天气晒种1~2天,并精选种子(zi),除去秕粒(li)病(bing)粒(li)、减少菌源,以提高种子(♓zi)的发芽势,增强秧苗抗病(bing)能力(li)。
二、药物操作消(xiao)毒杀(sha)菌高技(ji)术
1、加工处理方式:
每(mei)4kg稻(dao)种(zhong)(亩(mu)用(yong)(y❀ong)种(zhong)量)用(yong)(yong)浸(jin)种(zhong)药剂9ml,采用(yong)(yong)二次稀释(shi)法(fa),先加少量水调(diao)成浆(jiang)糊状,然后再加清水6kg稀释(shi),配(pei)成药液(ye)。将选过的稻(dao)种(zhong)4kg(亩(mu)用(yong)(yong)种(zhong)量)浸(jin)入配(pei)成的药液(ye)中搅拌均匀,以药液(ye)高出(chu)种(zhong)子2-3cm为宜(yi)。(若(ruo)稻(dao)种(zhong)数量多可按上述相(xiang)应比例配(pei)制)
2、浸(jin)种(zhong)时(shi)(shi)(shi)(shi)间(jian)(jian):日(ri)平均气(qi)温低于20℃,浸(jin)种(zhong)时(shi)(shi)(shi)(shi)间(jian)(jian)应为60小时(shi)(shi)(shi)(shi),20℃以上(shang),浸(jin)种(zhong)时(shi)(shi)(shi)(shi)间(jian)(jian)应在48小时(shi)(shi)(shi)(shi)左(zuo)右,具(ju)体根据气(qi)温变(bian)化掌握好时(shi)(shi)ℱ(shi)(shi)间(jian)(jian),但浸(jin)足(zu)时(shi)(shi)(shi)(shi)间(jian)(jian)是(shi)保证药效的꧟关(guan)键。
三、目光装修细节
1、浸(jin)种(zhong)容(rong)器类需求加盖,并移至阴(yin)凉处闭光(guang)处。严(yan)阻(zu)止蛇皮袋马(ma)上浸(jin)种(z𒅌hong),进而印(yin)象结果。稻(dao)种(zhong)进行消毒后不需求干净的水冲冼,可马(ma)上沥干催(cui)芽栽种(zhong)。
2、化剂(ji)外(wai)理过的(de)(de)✤种子的(de)(de),勿与的(de)(de)食物、词(ci)料存(cun)放在一并,不(bu)许(xu)喂ಞ饲禽畜,更不(bu)许(xu)是用来加工制作词(ci)料或食材。
3ꦿ、择药后应减(jian)少药液(ye)等真接直排(pai)到(dao)鱼池、虾(xia)塘(tang)等水产(chan)海产(chan)品饲养的地方,减(jian)少导致(zhi)鱼、虾(xiꦰa)、蟹自杀。
4、药剂(ji)杀(sha🔯)菌(jun)剂(ji)进行产(chan)品包(bao)装废置物不应私自扔(reng)掉或及(ji)时的加工,及(ji)时的交还各(ge)级党委药剂(ji)杀(sha)菌(jun)剂(ji)进行产(chan)品包(bao)装废置物回收分类处理(li)点。
浸种除甲醛药剂类型等详请了解当地城市植物保护单位。