水(shui)(shui)稻恶苗病(bing)(bing)(bing)是(shi)我(wo)区(qu)水(shui)(shui)稻上最主要的(de)种(zhong)(zhong)(zhong)传病(bing)(🎶bing)(bing)害(hai),由区(qu)农(nong)技中(zhong)心抽样(yang)送检经(jing)市农(nong)技中(zhong)心检测,今年(nian)我(wo)区(qu)水(shui)(shui)稻主要种(zhong)(zhong)(zhong)植品种(zhong)(zhong)(zhong)稻种(zhong)(zhong)(zhong)恶苗病(bing)(bing)(bing)平均带菌率为(wei)3.6%,最高8%,带菌率较(jiao)去年(nian)略低。但鉴于去年(nian)田间(jian)发(fa)病(bing)(bing)(bing)普遍,今年(nian)恶苗病(bing)(bing)(bing)仍存(cun)在较(jiao)大流(liu)行风(feng)险。稻种(zhong)(zhong)(zhong)药剂处理是(shi)控制水(shui)(shui)稻种(zhong)(zhong)(zhong)传病(bing▨)(bing)(bing)害(hai)最经(jing)济有效的(de)措施(shi),为(wei)此希望各街镇及广大种(zhong)(zhong)(zhong)植户(hu)引(yin)起高度重视,认真(zhen)做好水(shui)(shui)稻种(zhong)(zhong)(zhong)子处理工作,为(wei)今年(nian)水(shui)(shui)稻高产丰收打下(xia)良好的(de)基础(chu)。具体技术(shu)要求如下(xia):
一、晒种选种
播前选(xuan)晴好天(tian)气晒种(zhong)1~2天(tian),并精选(xuan)种(zhong)子,除去秕粒(li)(li)病粒(li)🐈(li)、减少(shao)菌源(yuan),以提高(gao)种(zhong)子的发(fa)芽势,增(zeng)强秧苗抗病能(neng)力ꦬ。
二、解毒药(yao)补救(jiu)杀菌技术性
1、解决的方法:
每4kg稻种(zhong)(亩用种(zhong)量)用浸种(zhong)药剂9ml,采用二次稀(xi)释法,先加(jia)少量水调成浆糊状,然(ran)后再加(jia)清水6kg稀(xi)释,配成药液。将选(xuan)过的稻种(zhong)🌳4kg(亩用种(zhong)量)浸入(ru)配成的药液中搅(jiao)拌均(jun)匀,以(yi)药液高出种(zhong)子2-3cm为宜。(若(ruo)稻种(ꦗzhong)数量多(duo)可按上述相应比例配制(zhi))
2、浸(jin)(jin)种时(shi)(shi)(shi)间(jian):日平均气温低于20℃,浸(jin)(jin)种时(shi)(shi)(shi)间(jian)应为(wei)60小时(shi)(shi)💖(shi),20℃以上(shang),浸(jin)(jin)种时(shi)(shi)(shi)间(jian)应在48小时(shi)(shi)(shi)左右,具体根(gen)据气温变化掌握好时(shi)(shi)(shi)间(jian),但(dan)浸(jin)(jin)足时(s🐭hi)(shi)(shi)间(jian)是保证药(yao)效(xiao)的关(guan)键。
三、特别留意须知
1、浸种(zhong)烧杯要有盖,并移至(zhi)阴(yin)凉(liang)处(chu)阴(yin)凉(liang)处(chu)。严禁止使(shi)用蛇皮(pi)袋进行(xing)浸种(zhong),尽量应响实际效果。稻种(zhong)杀菌后不要有池(chi)水冲冼,可进行(xing)沥干(gan)♍催芽栽种(zhong)。
2、的药剂外理过的种子图𒈔片,勿(wu)与吃的、猪饲(si)料厂放(fang)至同时,不可(ke)𓃲已(yi)喂食(shi)禽畜(chu),更不可(ke)已(yi)用以(yi)手工加工猪饲(si)料厂或食(shi)品原料。
3、口服꧙药物后(hou)应解决(jue)药液等真接直排到渔塘、虾塘等海产品养殖(zhi)厂的平(ping)台,解决(jue)引致🦋鱼(yu)、虾、蟹消失。
4、药(yao)剂包装(zhuang)设(she)计方式(shi)丢(diu)去物不(bu)宜(yi)任意丢(diu)去或强制治理✨,快速交(jiao)给(ji)县级药(yao)剂包装(zhuang)设(she)计方式(shi)丢(diu)去物收集点。
浸种药品平种等详请咨询了解。当地城市植物保护部门。