水(shui)(shui)(shui)(shui)(shui)稻恶(e)苗病(bing)是我区水(shui)(shui)(shui)(shui)(shui)稻上(shang)最主要的种(zhong)(zhong)传病(bing)害,由区农技(ji)(ji)中(zhong)心抽样送(song)检(jian)(jian)经市农技(ji)(ji)中(zhong)心检(jian)(jian)测,今(jin)年(nian)(nian)我区水(shui)(shui)(shui)(shui)(shui)稻主要种(zhong)(zhong)植(zhi)品种(zhong)(zhong)稻种(zhong)(zhong)恶(e)苗病(bing)平(ping)均带(dai)菌率为(wei)(wei)3.6%,最高8%,带(dai)菌率较(jiao)去(qu)年(nian)(nian)略(lve)低。但鉴于(yu)去(qu)年(nian)(nian)田间发病(bing)普遍,今(jin)年(nian)(nian)恶(e)苗病(bing)仍存(cun)在(zai)较(jiao)大(da)(da)流行风险(xian)。稻种(zhong)(zhong)药(yao)剂处理是控制(zhi)水(shui)(shui)(shui)(shui)(shui)稻🗹种(zhong)(zhong)传病(bing)害最经济(ji)有效的措施(shi),为(wei)(wei)此(ci)希望(wang)各街(jie)镇及广(guang)大(da)(da)种(zhong)(zhong)植(zhi)户(༺hu)引起高度重视,认(ren)真做好(hao)水(shui)(shui)(shui)(shui)(shui)稻种(zhong)(zhong)子处理工作,为(wei)(wei)今(jin)年(nian)(nian)水(shui)(shui)(shui)(shui)(shui)稻高产丰收(shou)打下(xia)(xia)良好(hao)的基础(chu)。具体技(ji)(ji)术要求如(ru)下(xia)(xia):
一、晒种选种
播前选(xuan𓆏)晴好天气晒种⛦1~2天,并精选(xuan)种子,除去秕(bi)粒病(bing)粒、减少菌(jun)源,以提高种子的发芽(ya)势,增强秧苗抗病(bing)能力(li)。
二(er)、化学剂(ji)工作消毒(du)液技(ji)艺
1、整理办法:
每4kg稻种(zhong)(zhong)(亩(mu)用(yong)(yong)种(zhong)(zhong)量(liang)(liang))用(yong)(yong)浸种(zhong)(zhong)药(yao)剂9ml,采用(yong)(yong)二次稀(xi)释(shi)法,先(xian)加少量(liang)(liang)水(shui)调成(cheng)浆糊状,然后再加清水(shui)6kg稀(xi)释(shi),配成(cheng)药(yao)液(ye)。将选过(guo)的稻种(zhong)(zhong)4kg(亩(mu)用(yong)(yong)种(zhong)(zhong)量(liang)(liang))浸𝔉入(ru)配成(cheng)的药(yao)液(ye)中搅拌均匀,以(yi)药(yao)液(ℱye)高出种(zhong)(zhong)子(zi)2-3cm为(wei)宜(yi)。(若稻种(zhong)(zhong)数量(liang)(liang)多(duo)可按上(shang)述相(xiang)应比例配制(zhi))
2、浸(jin)种时(shi)(shi)(shi)间(jian)(jian):日平均气温(wen)低于20℃,浸(jin)种时(shi)(shi)(shi)间(jian)(jian)应为60小时(shi)(shi)(shi𝓡),20℃以(yi)上,浸(jin)种时(shi)(shi)(shi)间(jian)(ji♎an)应在48小时(shi)(shi)(shi)左右,具体根据气温(wen)变化(hua)掌握好时(shi)(shi)(shi)间(jian)(jian),但浸(jin)足(zu)时(shi)(shi)(shi)间(jian)(jian)是保证药效的关键。
三(san)、需要注意基(ji)本常(chang)识
1、浸种(zhong)金属罐用(yong)加盖,并放置到阴暗处(chu)(chu)背光处(chu)(chu)。严(yan)禁止使用(yong)蛇皮袋马(ma)上浸种(zhong),切勿单独影响效果好。稻种(zhong)消毒液(⛄ye)后不(bu)要水(shui)冲冼,可马(ma)上沥干催芽秋(qiu)播。
2、药水治疗过的花楸树种子,勿与(yu)食用、祠料(liao)厂放至来,没(mei)(mei)法(fa)喂料(liao)禽畜,更(geng)没(mei)(mei)法(ꦕfa)来制作加工祠料(liao)厂或食品类。
3、择药(yao)后(ಌhou)应(ying)应(ying)对药(yao)液(ye)等马上排(pai)放(fang)鱼(yu)池、虾(xia)塘等水产种植种植的城市,应(ying)对致使鱼(yu)、虾(xia)、蟹(xie)🐼死亡者(zhe)。
4、除草(cao)剂礼(li)品(pin)盒废物物处理(li)物不恰擅自扔(reng)掉或立刻加(jia)♓工,尽快交还(hai)各项除草(cao)剂礼(li)品(pin)盒废物物处理(li)物收集点(dian)。
浸种药物制剂品種等详请服务咨询地区飞防政府部门。