水稻(dao)(dao)(dao)(dao)恶苗病(bing)(bing)(bing)是(shi)我(wo)区水稻(dao)(dao)(dao)(dao)上最主(zhu)要(yao)𒊎的种(zhong)传病(bing)(bing)(bing)害(hai),由区农(nong)技中(zhong)心抽样送检(jian)(jian)经市农(nong)技中(zhong)心检(jian)(jian)测,今年(nian)我(wo)区水稻(dao)(dao)(dao)(dao)主(zhu)要(yao)种(zhong)植(zhi)品种(zhong)稻(dao)(dao)(dao)(dao)种(zhong)恶苗病(bing)(bing)(bing)平均(jun)带(dai)(dai)菌(jun)率为3.6%,最高8%,带(dai)(dai)菌(jun)率较去年(nian)略低(di)。但鉴(jian)于去年(nian)田(tian)间发病(bing)(bing)(bing)普(pu)遍,今年(nian)恶苗病(bing)(bing)(bing)仍存在较大流(liu)行风险。稻(dao)(dao)(dao)(dao)种(zhong)药剂处理(li)是(shi)控制(zhi)水稻(dao)(dao)(dao)(dao)种(zhong)传病(bing)(bing)(bing)害(hai)最经济有效的措施,为此(ci)希望(wang)各街镇及广大种(zhong)植(zhi)户引(yin)起高度重视,认真做(zuo)好水稻(dao)(dao)(dao)(dao)种(zhong)子处理(li)工作,为今年(nian)水稻(dao)(dao)(dao)(dao)高产丰收打下良好的基础。具体(ti)技术要(yao)求如下:
一、晒种选种
播前(qian)选(xuan)晴好天气晒种(zhong)1~2天,并精(jing)选(xuan)种(z𓄧hong)子,除去秕(bi)粒(li)病(bing)粒(li)、减少菌(jun)源,以提高种(zhong)子的发芽势,增强秧苗抗病(bing)能力。
二、解(jie)毒剂治疗进行消毒技术(shu)工艺(yi)
1、净化处理措施:
每4kg稻种(zhong)(zhong)(zhong)(🤪zhong)(亩用(yong)种(zhong)(zhong)(zhong)(zhong)量(liang))用(yong)浸(jin)种(zhong)(zhong)💮(zhong)(zhong)药剂9ml,采用(yong)二(er)次(ci)稀(xi)释法,先加(jia)少量(liang)水调(diao)成(cheng)浆(jiang)糊状(zhuang),然(ran)后(hou)再加(jia)清水6kg稀(xi)释,配(pei)(pei)成(cheng)药液(ye)。将选过的稻种(zhong)(zhong)(zhong)(zhong)4kg(亩用(yong)种(zhong)(zhong)(zhong)(zhong)量(liang))浸(jin)入(ru)配(pei)(pei)成(cheng)的药液(ye)中搅拌均匀,以药液(ye)高出种(zhong)(zhong)(zhong)(zhong)子(zi)2-3cm为宜。(若稻种(zhong)(zhong)(zhong)(zhong)数量(liang)多可按上述相(xiang)应比例配(pei)(pei)制)
2、浸种(zhong)(zhong)时(shi)间(jian)(jian):日(ri)平(ping)均气(qi)温(wen)低(di)于20℃,浸种(zhong)(zhong)时(shi)间(jian)(jian)应(ying)为60小(xiao)时(shi),20℃以上,浸种(zhong)(zhong)时(shi)间(jian)(jian)应(ying)在(zai)48小(xiaꦍo)时(shi)左右,具体根据气(qi)温(wen)变化掌握好时(shi)间(jian)(jian),但浸足时(shi)间(jian)(jian)是保证(zheng)药效的(de)关键(jian)。
三、注意力细节
1、浸种(zhong)(zhong)贮(zhu)罐(guan)要求盖(gai),并置放阴(yin)冷遮(zhe)光处。严不可(ke)(ke)用蛇皮(pi)袋可(ke)(ke)以(�𒁏�yi)(yi)可(ke)(ke)以(yi)(yi)直(zhi)接浸种(zhong)(zhong),否(fou)则引响成效。稻(dao)种(zhong)(zhong)杀菌后(hou)不要求只用清水冲(chong)冼,可(ke)(ke)可(ke)(ke)以(yi)(yi)可(ke)(ke)以(yi)(yi)直(zhi)接沥干(gan)催芽插种(zhong)(zhong)。
2、化学剂解决过的迅雷种子(zi),勿与(yu)吃的、词料(liao)在(zai)一块,不♕(bu)了喂(wei)养禽畜,更不(bu)了常做生产制(zhi)作词料(liao)或调味品。
3、口服药物后应制止药液等(deng)直观外排养(yang)鱼塘(tang)、虾塘(tang)等(deng)鱼业生态养(yang)殖的平(ping)台,制止容易造成🥀鱼、虾、蟹致死。
4、除(c😼hu)草(cao)剂(ji)包(bao)裝设计(ji)废(fei)置物不应轻(qinꦫg)易丟弃或私自加(jia)工,即时(shi)归(gui)还派出机关除(chu)草(cao)剂(ji)包(bao)裝设计(ji)废(fei)置物再利用点。
浸种药品木种等详请了解当地政府飞防行业。