水(shui)(shui)(shui)(shui)稻(dao)(dao)恶苗(miao)病是(shi)我区♓(qu)水(shui)(shui)(shui)(shui)稻(dao)(dao)上(shang)最(zui)主(zhu)要的种(zhong)传病害,由区(qu)农(nong)技中心抽样送检(jian)经市农(nong)技中心检(jian)测,今(jin)年我区(qu)水(shui)(shui)(shui)(shui)稻(dao)(dao)主(zhu)要种(zhong)植品(pin)种(zhong)稻(dao)(dao)种(zhong)恶苗(miao)病平(ping)均带(dai)菌(jun)率为(wei)3.6%,最(zui)高(gao)8%,带(dai)菌(jun)率较去年略低。但鉴于去年田间发病普遍,今(jin)年恶苗(miao)病仍存在较大流行风险(xian)。稻(dao)(dao)种(zhong)药剂处(chu)理(li)是(shi)控制水(shui)(shui)(shui)(shui)稻(dao)(dao)种(zhong)传病害最(zui)经济(ji)有(you)效的措施,为(wei)此希(xi)望各街(jie)镇及广大种(zhong)植户引起高(gao)度重视,认真做好水(shui)(shui)(shui)(shui)稻(dao)(dao)种(zhong)子处(chu)理(li)工(gong)作,为(wei)今(jin)年水(shui)(shui)(shui)(shui)稻(dao)(d๊ao)高(gao)产丰收打(da)下良好的基础(chu)。具体技术要求如(ru)下:
一、晒种选种
播前(qian)选晴好天(tian)气(qi)晒种(zhong)1~2天(tian),并精选种(zhong)子(zi),除去秕粒(li)病(bing)粒(li)、减少菌源𝓰,以提高种(zhong)子(zi)的发芽(ya)势,增强秧苗抗(kang)病(bing)能力。
二(er)、药品净化处(chu)理空气消毒(du)技术(shu)水(shui)平(ping)
1、解决具体方法:
每(mei)4kg稻(dao)种(zhong)(zhong)(亩(mu)用(yo𒈔ng)种(zhong)(zhong)量)用(yong)浸(jin)种(zhong)(zhong)药(yao)(yao)剂9ml,采用(yong)二次稀释(shi)法,先加(jia)(jia)少量水调(diao)成浆糊状,然后再加(jia)(jia)清水6kg稀释(shi),配成药(yao)(yao)液。将选过的稻(dao)种(zhong)(zhong)4kg(亩(mu)用(yong)种(zhong)(zhong)量)浸(jin)入配成的药(yao)(yao)液中搅拌(ban)均匀,以药(yao)(yao)液高出(chu)种(zhong)(zhong)子(zi)2-3cm为宜。(若稻(dao)种(zhong)(zhong)数量多可按上述相应比例配制)
2、浸(jin)(jin)种时(shi)(shi)(shi)间(jian):日平均(jun)气(qi)温(wen)低于20℃,浸(jin)(jin)种时(shi)(shi)(shi𝕴)间(jian)应为60小(xiao)时(shi)(shi)(shi),20℃以上(shang),浸(jin)(jin)种时(shi)(shi)(shi)间(jian)应在(zai)48小(xiao)时(shi)(shi)(shi)左右,具体根据(ju)气(qi)温(wen)变化掌握好(hao)时(shi)(shi)(shi)间(jian),💖但浸(jin)(jin)足时(shi)(shi)(shi)间(jian)是保证(zheng)药效的(de)关键。
三、准备问题
1、浸种容(rong)器(qi)类应该加盖,并居于通风遮光处。严(yan)禁止蛇皮(pi)袋一直浸种,容(rong)易导(dao)致郊果。稻种酒精消(xiao)毒后(hou)不应该干(gaꦓn)净的水(shui)冲冼(xian),可一直沥干(gan)催芽秋(qiu)播。
2、药物制剂办理🧔(li)过的种(zhong)子视频,勿与吃的东西、饲草放(fang)一齐(qi),不宜(yi)喂饲禽畜,🤪更不宜(yi)中用激光加工(gong)饲草或物品。
3、使用药物后应防止(zhi)(zhi)药液等(deng)就直接排进水(shui)塘、虾(xia)塘等(deng)水(shui)产品养殖猪(zhu)的(de)问题,防☂止(zhi)(zhi)导致(zhi)鱼、虾(xia)、蟹消亡。
4、化肥(fei)礼(li)品盒(he)废(fei)置物应(ying)当(dang)随着遗弃或私𝔍自处(chu)里,要及(ji)时交给县级化肥(fei)礼(li)品盒(he)废(fei)置物回(hui)报点。
浸种药水品種等详请谘询本土值保单位。