水(shui)稻(dao)恶苗(miao)病是(shi)我区水(shui)稻(dao)上(shang)最(zui)主要(yao)的(de)种(zhong)(zhong)(zhong)(zhong)传病害,由区农技(ji)中(zhong)心抽样(yang)送检(jian)经市(shi)农技(ji)中(zhong)心检(jian)测,今(jin)年(nian)我区水(shui)稻(dao)主要(yao)种(zhong)(zhong)(zhong)(zhong)植品(pin)种(zhong)(zhong)(zhong)(zhong)稻(dao)种(zhong)(zhong)(zhongꦰ)(zhong)恶苗(miao)病平均带菌率为(wei)3.6%,最(zui)高(gao)8%,带菌率🌼较(jiao)去年(nian)略低。但鉴于去年(nian)田间发病普遍,今(jin)年(nian)恶苗(miao)病仍(reng)存在(zai)较(jiao)大流行(xing)风(feng)险。稻(dao)种(zhong)(zhong)(zhong)(zhong)药剂处(chu)理(li)是(shi)控(kong)制水(shui)稻(dao)种(zhong)(zhong)(zhong)(zhong)传病害最(zui)经济有效的(de)措施,为(wei)此希望各街(jie)镇(zhen)及(ji)广大种(zhong)(zhong)(zhong)(zhong)植户(hu)引起高(gao)度重视,认真做好(hao)水(shui)稻(dao)种(zhong)(zhong)(zhong)(zhong)子(zi)处(chu)理(li)工作(zuo),为(wei)今(jin)年(nian)水(shui)稻(dao)高(gao)产丰收打下良好(hao)的(de)基础。具体技(ji)术要(yao)求如下:
一、晒种选种
播前选晴好天气(qi)晒(shai)种(zhong)1~2天,并(bing)精(jing)选种(zho⛄ng)子(zi),除去(qu)秕粒病(bing)粒、减少菌源,以提高种(zhong)子(zi)的发芽势,增强秧苗抗病(bing)能力。
二、血药治(zhi)理消毒液(ye)技能
1、加工处理方案:
每4kg稻(dao)种(zhong)(zhong)(亩用种(zh🃏ong)(zhong)量)用浸(jin)(jin)种(zhong)(zhong)药(yao)剂9ml,采用二次(ci)稀释法,先加少量水调成(cheng)浆糊状,然后(hou)再加清水6kg稀释,配(pei)成(cheng)药(yao)液。将选过(guo)的稻(dao)种(zhong)(zhong)4kg(亩用种(zhong)(zhong)量)浸(jin)(jin)入配(pei)成(cheng)的药(yao)液中搅拌(ba𝕴n)均匀(yun),以药(yao)液高(gao)出种(zhong)(zhong)子2-3cm为宜。(若(ruo)稻(dao)种(zhong)(zhong)数(shu)量多(duo)可按上述相应比例配(pei)制)
2、浸(jin)种(zhong)时(shi)间(jian)(jian):日平(ping)均气温(wen)低于(yu)20℃,浸(jin)种(zhong)时(shi)间(jian)(jian)应为60小(xiao)时(shi),20℃以上,浸(jin)种(zhong)时(shi)间(jian)(jian)应在48小(xiao)时(shi)左(zuo)右(you),具体根据气温(wen𒆙)变化(hua)掌(zꦫhang)握好时(shi)间(jian)(jian),但浸(jin)足(zu)时(shi)间(jian)(jian)是保证药(yao)效的关键(jian)。
三、注意力议题
1、浸(jin)(jin)种(zhong)容器等要加盖,并(bing)置(zhi)入(ru)阴冷背光处(chu)。严(yan)停止使用(yong)蛇皮袋(d🔯ai)会(hui)会(hui)直(zhi)接浸(jin)(jin)种(zhong),如不(bu)干扰的效果。稻种(zhong)灭(mie)菌(jun)后不(bu)应该水冲冼,可会(hui)会(hui)直(zhi)接沥干催芽种(zhong)植。
2、药液工(gong)作过的种子网,勿与美食(shi)、精(jing)猪(zh๊u)饲(si)料都放在一同,不恰喂养禽畜,更不恰来用作加工(gong)工(gong)艺精(jing)猪(zhu)饲(si)料𒆙或(huo)食(shi)品厂(chang)。
3、施药(yao)(yao)后(hou)应(ying)防(fang)止(zhi)出现药(yao😼)(yao)液等进(jin)行排(pai)进(jin)水塘(tang)、虾塘(tang)等海产品养殖户的(de)ꦿ场(chang)所,防(fang)止(zhi)出现有鱼、虾、蟹(xie)身(shen)亡。
4、农约杀菌(jun)剂包装箱盒(he)舍弃(qi)物不容许所以舍弃(q♊i)或自(zi)动治理,及时性交还(hai)县级农约杀菌(jun)剂包装箱盒(he)舍弃(qi)物回收并点(dian)。
浸种解毒剂品系等详请联系地区值保单位部门。