水稻(dao)恶苗病(bing)是(shi)我(wo)区水稻(dao)上最主要的种(zhong)(zhong)(zhong)(zhong)(zhong)传(chuan)病(bing)害(hai)，由区农(nong)技中心抽(chou)样(yang)送检(jian)经市(shi)农(nong)技中心检(jian)测(ce)，今(jin)年(nian)我(wo)区水稻(dao)主要种(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)品种(zhong)(zhong)(zhong)(zhong)(zhong)稻(dao)种(zhong)(zhong)(zhong)(zhong)(zhong)恶苗病(bing)平均带菌(jun)率为(wei)(wei)(wei)3.6%，最高8%，带菌(jun)率较(jiao)去年(nian)略低。但鉴于去年(nian)田间发病(bing)普遍，今(jin)年(nian)恶苗病(bing)仍存在较(jiao)大流行风险。稻(dao)种(zhong)(zhong)🌱(zhong)(zhong)(zhong)药剂处理是(shi)控制水稻(dao)种(zhong)(zhong)(zhong)(zhong)(zhong)传(chuan)病(bing)害(hai)最经济有效的措施(shi)，为(wei)(wei)(wei)此(ci)希望各街镇及广大种(zhong)(zhong)(zhong)(zhong)(zhong)植(zhi)户(hu)引起(qi)高度重视，认真做好(hao)水稻(dao)种(zhong)(zhong)(zhong)(zhong)(zhong)子处理工作，为(wei)(wei)(wei)今(jin)年(nian)水稻(dao)高产丰收打(da)下(xia)良好(hao)的基(ji)础。具体技术(shu)要求如(ru)下(xia)：
一、晒种选种
播前选(xuan)晴(qing)好天气晒种(zhong)1～2天，并精(jing)选(xuan)种(zhong)子，除去秕粒病(bing)粒、减少菌源，以提高种(zhong)子的发芽𒅌(ya)势，增强秧苗抗病(bing)能🌠力。
二、药(yao)物加工灭菌(jun)水平
1、处置的办法：
每4kg稻种(zhong)（亩用种(zhong)量(liang)）用浸种(zhong)药剂9ml，采用二次稀释法，先(xian)加(jia)(jia)少量(liang)水调成(cheng)浆糊状，然后再加(jia)(jia)清(qing)水6kg稀释，配(pei)(pei)成(cheng)药液。将选(xuan)过的稻种(zhong)4kg（亩用种(zhong)量(liang)）浸入配(pei)(pei)成(cheng)的药液中搅拌(ban)均匀，以药液高(gao)出种(zhong)子2-3cm为宜。(若稻种(zhong)数(shu)量(liang)多可(keꦐ)按上述相应比(bi)例(li)配(pei)(pei)制)
2、浸(jin)种时(shi)(shi)(shi)(shi)(shi)间(jian)：日平均(jun)气(qi)温(wen)低于20℃，浸(jin)种时(shi)(shi)(shi)(s🅘hi)(shi)间🔯(jian)应为60小时(shi)(shi)(shi)(shi)(shi)，20℃以(yi)上(shang)，浸(jin)种时(shi)(shi)(shi)(shi)(shi)间(jian)应在48小时(shi)(shi)(shi)(shi)(shi)左右，具体根据气(qi)温(wen)变化掌握(wo)好时(shi)(shi)(shi)(shi)(shi)间(jian)，但浸(jin)足(zu)时(shi)(shi)(shi)(shi)(shi)间(jian)是(shi)保(bao)证(zheng)药效的关键。
三、注意力事宜
1、浸种(zhong)(zhong)金属罐需(xu)盖，并放置到通风闭光处。严禁止使用蛇皮袋简单浸种(zhong)(zhon🅷g)，防止影向成效。稻种(zhong)(zhon🀅g)清(qing)洁后不需(xu)温(wen)开水冲冼，可简单沥(li)干催(cui)芽插(cha)种(zhong)(zhong)。
2、制(zhi)剂解(jie)决过(guo)的种子地址，勿与(yu)食(shi)材、精预(yu)混(hun)料(liao)放着在一(yi)块(kuai)，允许喂养(yang)禽畜，更允许常(chang)做加工处(chu)理精预(yu)混(hun)料(liaꦺo)或(huo)食(shi)材。
3、用药指导后应制(zhi)止药液等随便排放鱼池、虾(xia)塘等鱼业养(yang)植的城市(shi)，制(zhi)止发生鱼、✤虾(xia)、蟹自💦杀。
4、化(hua)肥(fei)进(jin)行包装(zhuang)设计(j💛i)废(fei)(fei)渣物不(bu)得(de)不(bu)随处(chu)抛弃或自愿(yuan)代(dai)理，尽早交给(ji)各级(ji)政府化(hua)肥(fei)进(jin)行包装(zhuang)设计(ji)废(fei)(fei)渣物收回点。
浸种药液品系等详请咨询了解。本县值保部位。