水(shui)稻(dao)恶(e)苗病是我区(qu)(qu)水(shui)稻(dao)上最主(zhu)要的(de)种(zhong)(zhong)(zhong)(zhong)传病害(hai),由(you)区(qu)(qu)农技(ji)中心抽样送检(jian)(jian)经市农技(ji)中心检(jian)(jian)测(ce),今年(nian)(nian)我区(qu)(qu)水(shui)稻(dao)主(zhu)要种(zhong)(zhong)(zhong)(zhong)植品种(zhong)(zhong)(zhong)(zhong)稻(dao)种(zhong)(zhong)(zhong)(zhon🦹g)恶(e)苗病平均带菌(jun)率为(wei)3.6%,最高8%,带菌(jun)率较去(qu)年(nian)(nian)略低。但鉴于去(qu)年(nian)(nian)田(tian)间发病普(pu)遍,今年(nian)(nian)恶(e)苗病仍存在较大流行风(feng)险(xian)。稻(dao)种(zhong)(zhong)(zhong)(zhong)药剂处理(li)是控制(zhi)水(shui)稻(dao)种(zhong)(zhong)(zhong)(zhong)传病害(hai)最经济有(you)效的(de)措施,为(wei)此希望各街镇(zhen)及广大种(zhong)(zhong)(zhong)(zhong)植户引起高度重视(shi),认真做(zuo)好水(shui)稻(dao)种(zhong)(zhong)(zhong)(zhong)子处理(li)工(gong)作,为(wei)今年(nian)(nian)水(shui)稻(dao)高产丰收打下良好的(de)基础。具体技(ji)术(shu)要求如下:
一、晒种选种
播前(qian)选晴好天气晒种(zhong💙)1~2天,并精选种(zhong)子,除去秕粒病粒、减(jian)少(shao)菌(jun)源,以提高种(zhong)子的发(fa)芽势(shi),增强秧苗抗病能力。
二(er)、药品正确处理酒精消(xiao)毒科技
1、工作具体方法:
每4kg稻种(zhong)(zhong)(zhong)(亩(mu)用(yong)(yong)种(zhong)(zhong)(zhong)量)用(yong)(yong)浸种(zhong)(zhong)(zhong)药(yao)(yao)剂9ml,采用(yong)(yong)二次(ci)稀释法,先加少量水调成(cheng)(cheng)浆糊状(zhuang),然(ran)后再加清水6kg稀释,配成(cheng)(cheng)药(yao)(yao)液(ye)。将选(xuan)过的(de)稻种(zhong)(zhong)(zhong)4kg(亩(mu)用(yong)(yong)种(zhong)(zhong)(zhong)量)浸入(ru)配成(cheng)(cheng)的(de)药(yao)(yao)液(ye)中搅拌均匀(yu𒉰n),以药(yao)(yao)液(ye)高出种(zhong)(zhong)(zhong)子(zi)2-3cm为宜。(若(ruo)稻种(zhong)(zhong)(zhong)数量多(duo)可按上述(shu)相(xiang)应比(bi)例配制)
2、浸(jin)(jin)种时间:日平(ping)均气温(wen)低于20℃,浸(jin)(jin)种时间应(ying)♈为60小时,20℃以(yi)上,浸(j🌠in)(jin)种时间应(ying)在48小时左右,具体根据气温(wen)变化掌握好时间,但浸(jin)(jin)足时间是保证药效(xiao)的关键(jian)。
三、重视项目
1、浸(jin)种溶器要(yao)盖,并移(yi)至背阴背光处。严(yan)停(ting)用蛇(she)皮(pi)袋真接的浸(jin)种,容易印象(xiang♑)成果(guo)。稻种紫外线灯消毒后不要(yao)冷(leng)水冲冼,可真接的沥干催芽栽种。
2、化剂外理🐠过的图片种(zhong)子,勿与面(mian)制品、牛伺(si)料放置(zhi)于一块(kuai)儿(er),不应喂(wei)食🍎禽畜,更不应是(shi)用来制作加工牛伺(si)料或面(mian)制品。
3、用药(yao)治疗后(houꦓ)应(ying)尽量(liang)规(gui)避(bi)药(yao)液等直接性(xing)排放(fang)水塘、虾塘等鱼(yu)业种植的地方,尽量(liang)规(gui)避(bi)带来鱼(yu)、虾、蟹死亡者。
4、药剂礼品盒固(gu)废(fei)物不恰(qia𝔍)自由(you)舍弃或随(sui)意(yi)正确处理(li),即使交(jiao)还(hai)各部药剂礼品盒固(gu)废(fei)物二(er)手回收点。
浸种的药剂茶叶品类等详请咨询服务场地飞防部位。