水(shui)稻(dao)(dao)(dao)恶(e)苗(miao)病(bing)是我(wo)区水(shui)稻(dao)(dao)(dao)上最(zui)主(zhu)(zhu)要的(de)种(zhong)(zhong)传病(bing)害,由区农技(ji)中(zhong)心抽样送检经市农技(ji)中(zhong)心检测,今(jin)年(nian)我(wo)区水(shui)稻(dao)(dao)(dao)主(zhu)(zhu)要种(zhong)(zhong)植品种(zhong)(zhong)稻(dao)(dao)(dao)种(zhong)(zhong)恶(e)苗(miao)病(bing)平(ping)均带菌率为3.6%,最(zui)高8%,带菌率较去年(nian)略低。但鉴于去年(nian)田(tian)间发病(bing)普遍,今(jin)年(nian)恶(e)苗(miao)病(bing)仍存(cun)在较大流行风险。稻(dao)(dao)(dao)种(zhong)(zhong)药(yao)剂处(chu)理是控制水(shui)稻(dao)(dao)(dao)种(zhong)(zhong)🉐传病(bing)害最(zui)经济有(you)效的(de)措施,为此希(xi)望各街镇及广(guang)大种(zhong)(zhong)植户(hu)引起(qi)高度(du)重视,认真做(zuo)好水(shui)稻(dao)(dao)(dao)种(zhong)𝓰(zhong)子处(chu)理工作,为今(jin)年(nian)水(shui)稻(dao)(dao)(dao)高产(chan)丰收打下良(liang)好的(de)基础。具(ju)体(ti)技(ji)术要求如(ru)下:
一、晒种选种
播(bo)前(qian)选晴好(haღo)天(tian)气晒种(zhong)1~2天(tian),并精选种(zhong)子(zi),除去秕粒病粒、减(jian)少菌源,以(yi)提高种(zhong)子(zi)的(de)发芽势,增强秧苗抗病能力(l𒈔i)。
二、除(chu)甲醛(quan)药(yao)剂处(chu)理清(qing)洗枝术
1、处里最简单的(de)方法:
每4kg稻种(zhong)(亩用(yong)(yong)种(zhong)量)用(yong)(yong)浸(jin)种(zhong)药(yao)剂9ml,采用(yong)(𝓡yong)二(er)次稀释法,先加少量水调成(cheng)(cheng)浆糊状,然后再加清水6kg稀释,✅配(pei)成(cheng)(cheng)药(yao)液。将(jiang)选过(guo)的稻种(zhong)4kg(亩用(yong)(yong)种(zhong)量)浸(jin)入配(pei)成(cheng)(cheng)的药(yao)液中搅拌均匀,以药(yao)液高出种(zhong)子2-3cm为宜。(若稻种(zhong)数量多可按上述相应比例配(pei)制(zhi))
2、浸(jin)种时(shi)(shi)间(jian)(jian):日平(ping)均气温(wen)低于20℃,浸(jin)种时(shi)(shi)间(jian)(jian)应(ying)为60小时(shi)(shi),20℃以上,浸(jin)种🍒时(shi)(shi)间(jian)(jian)应(ying)在48小时(shi)(shi)左右,具(ju)体根据气温(wen)变化掌握好时(shi)(shi)间(jian)(jian),但浸(jin)足时(shi)(shi)间(jian)(jian)是保证药效的关(guan)键。
三、特别留意事由
1、浸种(zhong)贮罐必须 盖(gai),并居于荫凉遮光处。严停止使用(yong)蛇皮袋可以浸种(zhong),切(qie)不(bu)可干扰(rao)的效(xiao)果(guo)。稻(dao)种(zhong)消毒杀菌(jun)后不(bu)必须 自(zi)来水冲(chonꦡg)冼,可可以沥(li)干催芽采收。
2、除甲醛药剂(ji)办(ban)理过的种(zhong)子图片,勿(wu)与吃物(wu)、牛(niu)(niu)牛(niu)(niu)饲料(liao)置于(yu)共(gong)同(tong),不ཧ恰(qia)喂(wei)料(liao)禽畜,更不恰(qia)拿来(lai)加工(gong)处理牛(niu)(niu)牛(niu)(niu)饲料(liao)或饮食。
3、口(kou)服🐽药物后应逃(tao)避药液等可以(yi)直接污水(shui)♏排放(fang)水(shui)塘、虾塘等水(shui)产品养(yang)殖场(chang)养(yang)殖场(chang)的去处,逃(tao)避造鱼、虾、蟹死掉。
4、药(yao)剂标签印刷废料物不准自由丟掉或自己进行加工,即(ji)使交(jiao)给各个药(yao)剂标签印刷废料物回收(s💯hou)分(fen)类(lei)处理点。
浸种制剂款式等详请咨询了解地方植物保护行业。