水(shui)稻(dao)恶苗(miao)病(bing)是我区(qu)(qu)水(shui)稻(dao)上最主(zhu)要(yao)的(de)种(zhong)(zhong)传(chuan)病(bing)害,由区(qu)(qu)农技中(zhong)心(xin)抽样送检经(jing)市农技中(zhong)心(xin)检测,今年我区(qu)(qu)水(shui)稻(dao)主(zhu)要(yao)种(zhong)(zhong)植(zhi)品种(zhong)(zhong)稻(dao)种(zhong)(zhong)恶苗(miao)病(bing)平(ping)均(jun)带菌率为(wei)3.6%,最高8%,带菌率较(jiao)(jiao)去(qu)(qu)年略(lve)低。但鉴于去(qu)(qu)年田(tia🐻n)间发病(bing)普遍,今年恶苗(miao)病(bing)仍存(cun)在(zai)较(jiao)(jiao)大(da)流行风险。稻(dao)种(zhong)(zhong)药剂处(chu)(chu)理是控(kong)制水(shui)稻(dao)种(zhong)(zhong)传(chuan)病(bing)害最经(jing)济有效(xiao)的(de)𝓀措(cuo)施,为(wei)此希望各街镇(zhen)及广(guang)大(da)种(zhong)(zhong)植(zhi)户(hu)引起(qi)高度重视,认(ren)真做好水(shui)稻(dao)种(zhong)(zhong)子(zi)处(chu)(chu)理工作,为(wei)今年水(shui)稻(dao)高产丰收(shou)打下(xia)良好的(de)基础。具体技术要(yao)求如下(xia):
一、晒种选种
播前选(xuan)(xuan)晴(qing)好天(tian)气晒种(zhong)1~2天(tian),并精选(xuan)(xuan)种(zhong)子,除去(qu)秕ౠ粒(li)病(bing)粒(🎉li)、减少(shao)菌(jun)源,以(yi)提高种(zhong)子的发芽势,增强秧苗抗病(bing)能力(li)。
二、去除剂的(de)计量加工紫外线消毒(du)技(ji)术应用
1、办理办法:
每4kg稻(dao)(dao)种(zhong)(zhong)(亩用(yong)种(zhong)(zhong)量(liang))用(yong)浸种(zhong)(zhong)药剂9ml,采用(yong)二次稀释法,先(xian)加少量(liang)水调成(cheng)浆糊状,然后再加清水6kg稀释,配(pei)成(cheng)药液。将(jiang)选过(guo)的稻(dao)(dao)种(zhong)(zhong)4kg(亩用(yong)种(zhong)(zhong)量(liang))浸入配(pei)成(cheng)的药液中搅(j🍷iao)拌均匀(yun),以药液高出种(zhong)(zhong)子(zi)2-3cm为宜(yi)。(若(ruo)稻(dao)(dao)种(zhong)(zhong)数量(liang)多可(ke)按(an)上述(shu)相应比例配(pei)制)
2、浸种时(shi)(shi)(shi)间:日平均(jun)气温低于2💃0℃,浸种时(shi)(shi)(shi)间应(ying)为60小时(shi)(shi)(shi),20℃以(yi)上,浸⛦种时(shi)(shi)(shi)间应(ying)在48小时(shi)(shi)(shi)左右,具体根(gen)据气温变化掌握(wo)好时(shi)(shi)(shi)间,但浸足时(shi)(shi)(shi)间是保(bao)证药效的关键。
三、需注意小常识
1、浸种(zhong)场所(s🐻uo)要加(jia)盖(gai),并至于(yu)背(bei)阴闭(bi)光处。严阻止蛇皮袋可(ke)以直接的浸种(zhong),立即引响成(cheng)效。稻种(zhong)清洁消毒后不须要用水冲冼,可(ke)可(ke)以直接的沥(li)干催芽秋播。
2、药品净化处理(li)过(guo)的种(zhong)子视(shi)频(pin)下载,🌜勿(wu)与(yu)蛋白质(zhi)食(shi)物(wu)、词(ci)料(liao)添加剂存放在一块,不(bu)允许喂养禽畜,更不(bu)允许用做工作词(ci)料(liao)添加剂或(huo)保健食(shi)品。
3、用药量后🌳应以(yi)免药液等直(zhi)观倾倒垃圾养(yang)(yang)鱼塘、虾塘等水产(chan)品农(nong)村养(yang)(yang)殖的问题,以(yi)免带来(lai)鱼、虾、蟹自(zi)杀。
4、农药杀菌(jun)剂(ji)杀菌(jun)剂(ji)包裝袋(dai)(dai)♐废料物不允(yun)许直接(jie)舍弃或(huo)自(zi🔴)己进行处治,即(ji)使交给县(xian)级农药杀菌(jun)剂(ji)杀菌(jun)剂(ji)包裝袋(dai)(dai)废料物回收处理(li)点。
浸种血药的品种等详请资讯本市值保岗位。