水(sh꧒ui)稻(dao)(dao)(dao)恶苗病是我区水(shui)稻(dao)(dao)(dao)上最主要(yao)(yao)的种(zhong)(zhong)(zh🐟ong)传(chuan)(chuan)病害,由区农技中心(xin)抽样送(song)检经(jing)市农技中心(xin)检测,今(jin)年我区水(shui)稻(dao)(dao)(dao)主要(yao)(yao)种(zhong)(zhong)(zhong)植品种(zhong)(zhong)(zhong)稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)恶苗病平均带(dai)(dai)菌率为(wei)3.6%,最高(gao)8%,带(dai)(dai)菌率较(jiao)去年略(lve)低。但鉴于去年田(tian)间发(fa)病普遍(bian),今(jin)年恶苗病仍存在较(jiao)大流行风(feng)险。稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)药剂处理(li)是控制水(shui)稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)传(chuan)(chuan)病害最经(jing)济有效的措施,为(wei)此希望各街镇及广(guang)大种(zhong)(zhong)(zhong)植户引起高(gao)度重视,认(ren)真做好水(shui)稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)子处理(li)工作(zuo),为(wei)今(jin)年水(shui)稻(dao)(dao)(dao)高(gao)产丰收打下(xia)良好的基础(chu)。具体(ti)技术要(yao)(yao)求如下(xia):
一、晒种选种
播前选(xuan)晴(qi🅷ng)好天(tian)气晒种1~2天(tian),并精选(xuan)种子,除去秕(bi)粒病粒、减𝕴少(shao)菌源(yuan),以提高种子的发芽势,增强(qiang)秧苗抗病能(neng)力(li)。
二、制(zhi)剂工(gong)作消毒液技艺
1、解决技巧:
每4kg稻种(zhong)(zhong)(亩用种(zhong)(zhong)量)用浸(jin)(jin)种(zhong)(zhong)药剂9m𒀰l,采用二次稀(xi)释法(fa),先加(jia)🎃少量水调成(cheng)浆糊状(zhuang),然后再加(jia)清水6kg稀(xi)释,配成(cheng)药液(ye)。将选过的稻种(zhong)(zhong)4kg(亩用种(zhong)(zhong)量)浸(jin)(jin)入配成(cheng)的药液(ye)中搅拌均匀,以药液(ye)高出(chu)种(zhong)(zhong)子2-3cm为宜。(若稻种(zhong)(zhong)数量多可按(an)上(shang)述相应(ying)比例配制(zhi))
2、浸(jin)种(zhong)时(shi)(shi)间(jian):日平均(jun)气温(wen)低(di)于(yu)20℃,浸(jin)种(zhong)时(shi)(shi)间(jian)应为60小时(shi)(shi),20℃以上,浸(jin)种(zhong)时(shi)(shi)间(jian)应在48小时(shi)(shi)左右(you),具体根据(ju)气温(wen)变(bian)化掌握好时(shi)(shi)间(jian),但浸(jin)足时ౠ(shi)(shi)间(jian)是保证药效(xiao)的关键(jian)。
三、主意细节
1、浸种(zhong)储(chu)槽可以盖(gai),并放(fang)置于荫凉背光处。严停(ting)用蛇皮袋会(hui)浸种(zhong),🎀以避免影向功(gong)效。稻种(zhoꦍng)清洁后不可以池水(shui)冲冼,可会(hui)沥干催芽种(zhong)植。
2、药物补救过的原材料,勿与饮食、猪(zhu)精饲料放着一(yi)齐,不(bu)可(ke)以(yi)喂养禽(qin)畜(chu),更不(bu)可(ke)以(yi)时用制作加(jia)工猪(zhu)精饲料或商(sh🌳ang)品。
3、用药(yao)指(zhi)导后应(ying)(yi🌼ng)应(ying)(ying)对药(yao)液等可以(yi)进行(xing)室(shi)内(nei)水塘、虾(xia)塘等渔(yu)业养殖场(chang)养殖场(chang)的空(kong)间,应(ying)(ying)对有鱼(yu)、虾(xia)、蟹死忙。
4、除草剂进行(xing)(xing)标签꧟印刷(shua)废品物不恰随着舍弃或进行(xing)(xing)代理(li),及时(shi)的(de)交给(ji)各(ge)个除草剂进行(xinಌg)(xing)标签印刷(shua)废品物回收(shou)利(li)用点。
浸种药物类种等详请谘询各地植物保护部位。