水稻(dao)(dao)恶(e)苗(miao)病(bing)是我区水稻(dao)(dao)上最(zui)(zui)主(zhu)要(yao)(yao)的种(zhong)(zhong)(zhong)(zhong)传(chuan)病(bing)害,由区农(nong)技(ji)中(zhong)心抽样送检经市农(nong)技(ji)中(zhong)心检测,今年(nian)(nian)我区水稻(dao)(dao)主(zhu)要(yao)(yao)种(zhong)(zhong)(zhong)(zhong)植(zhi)品种(zhong)(zhong)(zhong)(zhong)稻(dao)(dao)种(zhong)(zhong)(zhong)(zhong)恶(e)苗(miao)病(bing)平均带菌(jun)率(lv)(lv)为(wei)3.6%,最(zui)(zui)高(gao)8%,带菌(jun)率(lv)(lv)较去年(nian)(nian)略低。但鉴于去年(nian)(nian)田间(jian)发(fa)病(bing)普(pu)遍,今年(nian)(nian)恶(e)苗(miao)病(bing)仍存在较大(da)流行风险。稻(dao)(dao)种(zhong)(zhong)(zhong)(zhong)药剂处理是控(kong)制水稻(dao)(dao)种(zhong)(zhong)(zhong)(zhওong)传(chuan)病(bing)害最(zui)(zui)经济有效的措(cuo)施,为(wei)此(ci)希(xi)望各街镇及广大(da)种(zhong)(zhong)(zhong)(zhong)植(zhi)户引起高(gao)度重视,认真做(zuo)好水稻(dao)(dao)种(zhong)(zhong)(zhong)(zhon𒁃g)子处理工作,为(wei)今年(nian)(nian)水稻(dao)(dao)高(gao)产丰收(shou)打下良好的基础。具体技(ji)术要(yao)(yao)求如下:
一、晒种选种
播前选晴好天气(qi)晒种(zhong)1~2天,并(bing)精选种(zhong)子(zi),除(chu)去(qu)秕粒(li)病粒(li)、减少(shao)菌源,以提高种(zhong)子(zi)𒐪的发芽势,增(zeng)强秧(yang)苗(miao)抗(kangꦍ)病能力(li)。
二、药物制剂(ji)清理(li)消(xiao)毒剂(ji)技木
1、外理的办法:
每(mei)4kg稻(dao)种(zhong)(亩(mu)用(yong)(yong)种(zhong)量)用(yong)(yong)浸(jin)种(zhong)药剂(ji)9ml,采用(yong)(yong)二次稀释法(fa),先(xian)加少量水(shui)调成浆糊状,然(ran)后再加清水(shui)6kg稀释,配成药液(ye)。将选过的稻(dao)种(zhong)4kg(亩(mu)用(yong)(yong)种(zhong)量)浸(jin)入配成的药液(ye)中(zhong)搅拌(ban)均匀,以药液(ye)高出(chu)种(zhong)🃏子(zi)2-3cm为宜。(若稻(dao)种(zhong)数量多可按上述相应比例配制)
2、浸种时(shi)间:日平(ping)均气温低于20℃,浸种时(s🗹hi)间应为60小(xiao)时(shi),20℃以(yi)上,浸种时(shi)间应在48小(xiao)时(shi)左右,具体根据气温变化(hua)掌握好时(shi)间,但浸✃足时(shi)间是保证(zheng)药效的关键。
三、主意事由
1、浸种(zhong)容器类用加(jia)盖,并居于(yu)荫凉背光处。严(yan)停(ting)止(zhi)使用蛇皮袋马(ma)上(shang)(shang)浸种(zhong),避免关系💞功效。稻(dao)种(zhong)消毒剂后不(bu)是需要池水冲(chong)冼(xian),可马(m💝a)上(shang)(shang)沥干(gan)催芽栽种(zhong)。
2、药物解(jie)决过的(de)种子视(shi)频(pin)下载(zai),勿与饮食、青词(ci)料摆到(dao)一切,禁止喂料禽畜,更禁止可以(yi)代加工青词(ci)料或肉♓(rou)制品。
3、治疗后应以免 药液等可以直(zhi)接排(pai)进渔(yu)塘、虾塘等水(shui)产(chan)业家庭(ting)养殖(zhi)的敌(di)ꦬ方,以免 形成鱼(yu)、虾、蟹死忙。
4、化(hua)肥设(she)计废(fei)渣(zha)物不能轻易丢掉🐠或强制外理,尽(jin)早(zao)交还各个化(hua)肥设(she)计废(fei)渣(zha)物回收处理点(dian)。
浸种药物制剂茶叶品类等详请咨询中心当地城市植物保护部门管理。