水稻(dao)(dao)恶(e)(e)苗(miao)病(bing)是我区水稻(dao)(dao)上(shang)最(zui)主要的(de)种(zhong)(zhong)(zhong)传病(bing)害(hai),由区农技(ji)中(zhong)心抽样送(song)检(jian)经市农技(ji)中(zhong)心检(jian)测,今年(nian)我区水稻(dao)(dao)主要种(zhong)(zhong)(zhong)植品(pin)种(zhong)(zhong)(zhong)稻(dao)(dao)种(zhong)(zhong)(zhong)恶(e)(e)苗(miao)病(bing)平均带菌率为3.6%,最(zui)高8%,带菌率较(jiao)去年(nian)略(lve)低。但鉴于去年(nian)田间发病(bing)普遍,今年(nian)恶(e)(e)苗(miao)病(bing)仍存在较(jiao)大(da)流行风险。稻(dao)(dao)种(zhong)(zhong)(zhong)药剂处(chu)(chu)理是控(kong)制水稻(dao)(dao)种(zhong)(zhong)(zhong)传病(bing)害(hai)最(zui)经济有(you)效(xia🎃o)的(de)措(cuo)施,为此希望各街镇及广大(da)种(zhong)(zhong)(zhong)植户引起高度重视,认真做好水稻(dao)(dao)种(zhong)(🐟zhong)(zhong)子处(chu)(chu)理工(gong)作,为今年(nian)水稻(dao)(dao)高产丰收打下(xia)良好的(de)基础。具体技(ji)术要求如下(xia):
一、晒种选种
播前选晴好天(tian)气晒种1~2天(tian),并(bing)精选种子,除去(qu)秕粒病(bing)粒、𓂃减少菌源(yuan),以提(ti)高(gao)种子的发芽势,增强秧苗抗病(bing)能力。
二、的药(yao)剂处(chu)里进(jin)行消毒高技术(shu)
1、外理方式:
每(mei)4kg稻(dao)(dao)种(zhong)(亩用种(zhong)量(liang))用浸种(zhong)药剂9ml,采用二次稀(xi)释法(fa),先加少(shao)量(liang)水调成(cheng)浆(jiang)糊状,然后再加清水6kg稀(xi)释,配(pei)成(cheng)药液(ye)(ye)。将选(xuan)过的(de)稻(dao)(dao)种(zhong)4kg(亩用种(zhong)量(liang))浸入配(pei)成(cheng)的(de)药液(ye)(ye)中搅拌均匀,以药液(ye)(ye)高出种(zhong)子(zi)2-3cm为(wei)宜。(若稻(dao)(dao)种(zh💃ong)数量(liang)多可(ke)按(an)上(shang)述(shu)相应比例配(pei)制(zhi))
2、浸(jin)种(zhong)时(shi)(shi)(shi)间:日(ri)平(ping)均气(qi)(qi)温(wen)(wen)低于20℃,浸(jin)种(zhong)时(shi)(shi)(shi)间应为60小(xiao)时(shi)(shi)(shi)ꦍ,20℃以上(shang),浸(jin)种(zhong)时(shi)(shi)(shi)间应在48小(xiao)时(shi)(shi)(shi)左(zuo)右,具(ju)体(ti)根据气(qi)(qi)温(wen)(wen)变化(huꦆa)掌(zhang)握好时(shi)(shi)(shi)间,但浸(jin)足时(shi)(shi)(shi)间是保证药效的关键。
三、准备法定程序
1、浸种不锈钢容器用加(jia)盖,并至于通风(feng)闭光(guang)处。严停止使用蛇皮(pi)ܫ袋(d🎉ai)直观浸种,切不可作用作用。稻种消(xiao)毒剂(ji)后不要求青水冲冼,可直观沥(li)干催芽秋(qiu)播。
2、的药剂进行处理过(guo)的原材料(liao),勿与(yu)吃(chi)食(shi)、精词(ci)料(liao)放置在(zai)一(yi)块儿,不宜喂饲禽畜,更不宜用以手工(gong)加工(gong)精༺词(ci)料(liao)或食(shi)品💦原料(liao)。
3、用药(yao)指🎀导后应(ying)减(jian)少(shao)药(yao)液等间(jian)接排进渔(yu)塘(tang)、虾塘(tang)等水产品养殖(zhi)(zhi)业(ye)养殖(zhi)(zhi)业(ye)的场所(suo),减(jian)少(shao)引(yin)起鱼、虾、蟹枯死。
4、农药杀菌剂杀虫剂彩ﷺ盒废渣物只(zhi)能私自扔掉(diao)或(huo)自愿防范,尽快(kuai)交给各部农药杀菌剂杀虫剂彩盒废渣物回(hui)笼点(dian)。
浸种去除剂的计量品系等详请谘询当地的值保部门。