水稻(dao)(dao)(dao)恶(e)苗(miao)病(bing)(bing)(bing)是我区水稻(dao)(dao)(dao)上最主要的种(zhong)(zhong)(zhong)传病(bing)(bing)(bing)害(hai),由区农(nong)技中心抽样(yang)送(song)检经市农(nong)技中心检测(ce),今(jin)(jin)年(nian)我区水稻(dao)(dao)(dao)主要种(zhong)(zhong)(zhong)植品种(zhong)(zhong)(zhong)稻෴(dao)(dao)(dao)种(zhong)(zhong)(zhong)恶(e)苗(miao)病(bing)(bing)(bing)平均带菌(jun)(jun)率为3.6%,最高(gao)8%,带菌(jun)(jun)率较去年(nian)略低。但鉴于去年(nian)田间发病(bing)(bing)(bing)普(pu)遍,今(jin)(jin)年(nian)恶(e)苗(miao)病(bing)(bing)(bing)仍存在(zai)较大流行(xing)风险。稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)药剂(ji)处理是控制水稻(dao𓂃)(dao)(dao)种(zhong)(zhong)(zhong)传病(bing)(bing)(bing)害(hai)最经济有效的措(cuo)施(shi),为此希望(wang)各街镇及广大种(zhong)(zhong)(zhong)植户引起高(gao)度重(zhong)视,认(ren)真做好(hao)水稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)子处理工(gong)作(zuo),为今(jin)(jin)年(nian)水稻(dao)(dao)(dao)高(gao)产丰收打下(xia)(xia)良好(hao)的基础。具体技术(shu)要求(qiu)如下(xia)(xia):
一、晒种选种
播(bo)前选晴好(hao)天气晒种1~2天,并精选种子(zi)(zi),除去秕粒病粒、减(jian)少菌源(yu🍨an),以(yi)提(ti)高(gao)种子(zi)(zi)的发芽势(shi),增强秧苗抗病能力。
二(er)、去除(chu)剂(ji)的计(ji)量外理消毒液技术性
1、清理策略:
每4kg稻(dao)种(zhong)(亩(mu)用种(zhong)量(liang))用浸种(zhong)药(yao)剂9ml,采用二次稀(xi)释法,先加(jia)少(shao)量(liang)水调成(cheng)浆(jiang)糊状,然后再加(jia)清水6kg稀(xi)释,配成(cheng)药(yao)液(ye)(ye)。将选(xuan)过(guo)的稻(dao)种(ꩵzhong)4kg(亩(mu)用种(zhong)量(liang))浸入配成(cheng)的药(yao)液(ye)(ye)中(zhong)搅拌(ban)均匀,以药(yao)液(yeᩚᩚᩚᩚᩚᩚᩚᩚᩚ𒀱ᩚᩚᩚ)(ye)高(gao)出种(zhong)子2-3cm为宜。(若(ruo)稻(dao)种(zhong)数(shu)量(liang)多可按上述相应比(bi)例配制)
2、浸种(zhong)时(shi)间(jian)(jian):日平均(jun)气(qi)温低于(yu)20℃,浸种(zhong)时(shi)间(jian)(jian)应为60小时(shi),20℃以上,浸种(zhong)时(shi)间(jian)(jian)应在48小时(shi)左右,具(ju)体(ti)根据气(qi)温变(bian)化掌握好时(shi)间(jian)(jﷺian),但浸足时(shi)间(jian)(jian)是保证药(yao)效的关键。
三、主意应当
1、浸种(zhong)(zhong)溶器要(yao)加盖,并居于背阴闭光(guang)处。严(yan)停止使(shi)用蛇皮袋可(ke)以会浸种(zhong)(🌼zhong),免(mian)得(de)决(jue)定治(zhi)疗(liao)效果。稻(dao)种(zhong)(zhong)进行消毒(du)后不要(yao)池水(shui)冲冼,可(ke)可(ke)以会沥干催(cui)芽下种(zhong)(zhong)。
2、血药处里过(guo)的原材(cai)料(liao),勿(wu)与食物(wu)营养、词料(liao)贴到一(yi)个,允许喂⭕料(liao)禽畜,更允许当(dang)做(zuo)加工制(zhi)作(zuo)词料(liao)或商品(pin)。
3、服药后应避开药液等随时(shi)流进水塘、虾(xia)(xia)塘等水产品养(yang)殖场(chang)养(yang)殖场(chang)的部(bu)分,避开♏带来鱼、虾(xia)🏅(xia)、蟹死掉(diao)。
4、除草(cao)剂杀虫剂设计方(fang)(fang)式废物物只能简(jian)单(dan)丢掉或(huo)立(li)即𓄧(ji)治理,立(li)即(ji)交给各级政府除草(cao)剂杀虫剂设计方(fang)(fang)式废物物的回收利用点。
浸种去除剂的计量茶叶品类等详请谘询地区值保部们。