水(shui)稻(dao)(dao)(dao)恶(e)苗病(bing)是(shi)我(wo)区(qu)水(shui)稻(dao)(dao)(dao)上最(zui)主要(yao)的(de)种(zhong)(zhong)(zhong)传病(bing)害,由区(qu)农(nong)技中(zhong)心(xin)抽样(yang)送检经(jing)(jing)市农(nong)技中(zhong)心(xin)检测,今(jin)年(nian)我(wo)区(qu)水(shui)稻(dao)(dao)(dao)主要(yao)种(zhong)(zhong)(zhong)植(zhi)品种(zhong)(zhong♊)(zhong)稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)恶(e)苗病(bing)平均带(dai)菌率为3.6%,最(zui)高(gao)8%,带(dai)菌率较去年(nian)略低。但(dan)鉴(jian)于去年(nian)田间发病(bing)普(pu)遍(bian),今(jin)年(nian)恶(e)苗病(bing)仍(reng)存在(zai)较大(da)流(liu)行风险。稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)药剂处理(li)是(shi)控制(zhi)水(shui)稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)传病(bing)害最(zui)经(jing)(jing)济有效的(de)措施,为此希望(wang)各街镇及广(guang)大(da)种(zhong)(zhong)(zhong)植(zhi)户(hu)引起(qi)高(gao)度重(zhong)视(shi),认真做(zuo)好(hao)水(shui)稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)子处理(li)工作,为今(jin)年(nian)水(shui)稻(dao)(dao)(dao)高(gao)产丰(feng)收(shou)打(da)下(xia)良好(hao)的(de)基础(chu)。具体技术要(yao)求如下(xia):
一、晒种选种
播前选晴好天(tian)气晒种(zhong)1~2天(tian),并精(jing)𒁃选种(zhong)子(zi),除(chu)去秕粒病粒、减少菌(jun)源(yuan),以(yi)提高种(zhong)子(zi)的发芽势,增强秧(yang)苗抗病能力。
二、药(yao)物制(zhi)剂处理紫外线灯消毒技術
1、加工策略:
每4kg稻种(zhong)(zhong)(zhong)(亩用(yong)种(zhong)(zhong)(zhong)量)用(yong)浸种(zhong)(zhong)(zhong)药剂(ji)9ml,采用(yong)二(er)次稀释法,先加少量水调成浆糊(hu)状(zhuang),然后再加清(qing)水6kg稀释,配(pei)成药液。将选(xuan)过的稻种(zhong)(zhong)(zhong)4kg(亩用(yong)种(zhong)🅘(zhong)(zhong)量)浸入配(pei)成的药液中搅(jiao)拌(ban)均(jun)匀(yun),以药液高(gao)出种(zhong)(zhong)(zhong)子2-3cm为宜。(若稻种(zhong)(zhong)(zhong)数量多(duo)可(ke)按(an)上述相应比例(li)配(pei)制)
2、浸(jin)种时(shi)间:日平均气温低于20℃,浸(jin)种时(shi)间应为60小时(shi),20℃以上,浸(jin)种时(shi)间应在48小时(shi)左右,具体根据(ju)气温变(bian)化掌握好时(shi)间,但浸(jin)足时(shi)间是保(bao)证药෴效的关键(jian)。
三、提前准备议题
1😼、浸꧙(jin)种贮槽用加盖,并放在背阴(yin)遮光处(chu)。严禁止蛇(she)皮袋(dai)随时(shi)浸(jin)种,为了避免干扰功能。稻种清洗后(hou)不可以温(wen)水冲(chong)冼,可随时(shi)沥干催芽载种。
2、解毒剂(ji)处里(li)过的(de)原(yuan)材(c𝓡ai)料(liao),勿与吃的(de)食物、词(ci)料(liao)在一块儿,严(yan)禁(jin)喂养禽畜,更严(yan)禁(jin)来(lai)用作代(dai)加工词(ci)料(liao)或美食。
3、用药治疗(liao)后(hou)应制止药液等(deng)简单(dan)排放(fang)养鱼塘、虾(xia)塘等(deng)水产海产品农村(cun🐈)养殖的特点(dian),制止引起鱼、虾(xia)、蟹(𒁏xie)意外死(si)亡。
4、药剂外(wai)包(bao)装机丢掉(diao)(diao)物不应(ying)随(sui)处(chu)丢掉(diao)(diao)或(huo)自(zi)愿(yuan)处(chu)🔴里,不能(neng)交(jiao)给县(xian)级药剂外(wai)包(bao)装机丢掉(diao)(diao)物再利用(yong)点。
浸种药物新品种等详请质询地方值保部分。