水(shui)稻(dao)恶(e)苗(miao)病是我区(qu)水(shui)稻(dao)上最(zui)主要的(de)种(zhong)(zhong)传病害,由区(qu)农(nong)(nong)技中(zhong)心抽(chou)样送检经(jing)(jing)市农(nong⛦)(nong)技中(zhong)心检测,今年(nian)(nian)我区(qu)水(shui)稻(dao)主要种(zhong)(zhong)植品(pin)种(zhong)(zhong)稻(dao)种(zhong)(zhong)恶(e)苗(miao)病平均(jun)带菌率为(wei)3.6%,最(zui)高(gao)(gao)8%,带菌率较去(qu)年(nian)(nian)略(lve)低。但鉴(jian)于去(qu)年(nian)(nian)田间发(fa)病普遍,今年(nian)(nian)恶(e)苗(miao)病仍存在(zai)较大(da)流行风险。稻(dao)种(zhong)(zhonꦅg)药剂处理是控制水(shui)稻(dao)种(zhong)(zhong)传病害最(zui)经(jing)(jing)济有(you)效的(de)措施(shi),为(wei)此(ci)希望各街镇及(ji)广大(da)种(zhong)(zhong)植户(hu)引起高(gao)(gao)度重视,认真做好水(shui)稻(dao)种(zhong)(zhong)子处理工作,为(wei)今年(nian)(nian)水(shui)稻(dao)高(gao)(gao)产丰收打下良好的(de)基础(chu)。具体技术要求如下:
一、晒种选种
播前选晴(qing)好天气晒种(zhong)1~2天,并精选种(zhong)子,除去秕粒病粒、减少(ꦇshao)菌源(yuan)🔥,以提(ti)高种(zhong)子的发芽势,增强秧(yang)苗抗病能力。
二、解毒药整理杀(sha)菌系(xi)统
1、解决方式方法:
每(mei)4kg稻种(zhong)(zhong)(zhong)(亩用(yong)(yong)种(zhong)(zhong)(zhong)量(liang)(liang))用(yong)(yong)浸种(zhong)(zhong)(zhong)药(yao)(yao)剂9ml,采(cai)用(yong)(yong)二次稀释法,先加少量(liang)(liang)水(shui)调成(cheng)浆糊状,然后(hou)再加清(qing)水(shui)6kg稀释,配成(cheng)药(yao)(yao)ꩲ液(ye)。将(jiang)选过的稻种(zhong)(zhong)(zhong)4kg(亩用(yong)(yong)种(zhong)(zhong)(zhong)量(liang)(liang))浸入(ru)配成(cheng)的药(yao)(yao)液(ye)中(zhong)搅拌均匀,以药(yao)(yao)液(ye)高出种(zhong)(zhong)(zhong)子2-3cm为宜。(若稻种(zhong)(zhong)(zhong)数量(liang)(liang)多可按(an)上(shang)述相应(ying)比例配制(zhi))
2、浸种时(shi)间(jian)(jian):日平均气温低于20℃,浸种时(shi)间(jian)(jian)应为60小时(shi),20℃以上(sh🌄ang),浸种时(shi)间(jian)(jian)应在48小时(shi)左右(you),具体根据气温变化(hua)掌握好时(shi)间(jian)(jian),但浸足时(shi)间(jian)(jian)是保证药效(xiao)的关键(jian)。
三、注意问题问题
1、浸种(zhong)袋子(zi)要(yao)求加盖,并放置在阴凉(liang)处(chu)遮🌳光处(chu)。严禁止使(shi)用蛇皮袋可以真接浸种(zhong),以避免损𒀰害(hai)特效。稻(dao)种(zhong)清洁消毒(du)后不(bu)要(yao)求盐水冲(chong)冼,可可以真接沥干催芽秋播(bo)。
2、解毒剂代加(jia)(jia)工处理过的(de)花(hua)楸(qiu)树种(zhong)子,勿与(yu)美🎃(mei)食、饲料添加(jia)(jia)剂添加(jia)(jia)剂放至(zhi)分着(zhe),只(zhi)能喂养禽畜,更(geng)只(zhi)能代替(ti)代加(jia)(jia)工饲料添加(jia)(jia)剂添加(jia)(jia)剂或调味品。
3、药物(wu)治疗后(hou)应尽量(liang)(liang)不要药液等马(ma)上倾倒(dao)垃圾养鱼(yu)(yu)池、虾(xia)(xia)塘等鱼(yu)(yu)业(ye)家庭养殖(zhi)的方面,尽量(liang)(liang)不要构成鱼(yu)(yu)、虾(xia)(xia)、蟹伤(s🦩hang)亡。
4、除(chu)草🤡剂礼品盒废(fei)料物不得已直接放弃或自主加工,按时交(ji🤡ao)还各个除(chu)草剂礼品盒废(fei)料物回收利(li)用点。
浸种化剂类种等详请网络咨询本省飞防相关部门。