水(shui)(shui)稻(dao)(dao)(dao)恶苗病(bing)(bing)(bing)是(shi)我区水(shui)(shui)稻(dao)(dao)(dao)上最主(zhu)(zhu)要(yao)(yao)的(de)(de)种(zhong)传(chuan)病(🐼bing)(bing)(bing)害,由区农技(ji)中心(xin)抽样送检经市农技(ji)中心(xin)检测,今年我区水(shui)(shui)稻(dao)(dao)(dao)主(zhu)(zhu)要(yao)(yao)种(zhong)植(zhi)品种(zhong)稻(dao)(dao)(dao)种(zhong)恶苗病(bing)(bing)(bing)平均带菌(jun)率为(wei)3.6%,最高(gao)8%,带菌(jun)率较去年略低。但鉴于去年田间发病(bing)(bing)(bing)普遍,今年恶苗病(bing)(bing)(bing)仍(reng)存(cun)在较大流行风险。稻(dao)(dao)(dao)种(zhong)药(yao)剂处(chu)理是(shi)控制(zhi)水(shui)(shui)稻(dao)(dao)(dao)种(zhong)传(chuan)病(bing)(bing)(bing)害最经济有效的(de)(de)措施,为(wei)此希望各街镇及广大种(zhong)植(zhi)户(hu)引起高(gao)度重(zhong)视,认真做好水(shui)(shui)稻(dao)(dao)(dao)种(zhong)子处(chu)理工作,为(wei)今年水(shui)(shui)稻(dao)(dao)(dao)高(gao)产丰收打下良(liang)好的(de)(de)基础。具体(ti)技(ji)术要(yao)(yao)求(qiu)如(ru)下:
一、晒种选种
播前选晴好天(tian)气晒(shai)种(zhong)1~2天(tian♛),并精选种(zhong)子,除去秕粒病(bing)粒、减少(shao)菌源(yuan),以提高种(zhong)子的发芽(ya)势,🔴增强秧苗(miao)抗(kang)病(bing)能力(li)。
二、去除剂的计量处理进行消毒水平
1、操作工艺:
每4kg稻(dao)种(zhong)(亩用(yong)种(zhong)量(liang)(liang))用(yong)浸种(zhong)药(yao)剂9ml,采用(yong)二(er)次稀释(shi)法,先加(jia)少量(liang)(liang)水调成(cheng)(cheng)浆糊状(zhuang),然后再加(jia)清水6kg稀释(shi),配(pei)成(cheng)(ch꧂eng)药(yao)液(ye)(ye)。将选过(guo)的稻(dao)种(zhong)4kg(亩用(yong)种(zhong)量(liang)(liang))浸入(ru)配(pei)成(cheng)(cheng)的药(yao)液(ye)(ye)中(zhong)搅拌均匀,以药(yao)液(ye)(ye)高出种(zhong)子2-3cm为宜。(若稻(dao)种(zhong)数量(liang)(liang)多可(ke)按(an)上(shang)述相(xiang)应(ying)比(bi)例(li)配(pei)制)
2、浸(jin)(jin)种时(shi)间(jian):日(ri)平均气(qi)温(wen)低于20℃,浸(jin)(jin)种时(shi)间(jian)应为60小时(shi),20℃以上,浸(jin)(jin)种时(shi)间(jian)应在48小时(shi)左右(you),具体(ti)根据气(qi)温(wen)变(bian)化(hꦆua)掌握好时(shi)间(jia✤n),但浸(jin)(jin)足(zu)时(shi)间(jian)是(shi)保(bao)证(zheng)药效的关(guan)键(jian)。
三、主意问题
1、浸种(zhong)(zhong)(zhong)溶器要(yao)求盖,并放置(zhi)通风阴凉处(chu)。严停(ting)止使(shi)用蛇皮(pi)袋可以(yi)会(hui)浸种(zhong)(zhong)(zhong),以(yi)避免影响力功效。稻种(zhong)(zhong🌼)(zhong)杀(sha)菌消毒后不要(yao)求自来水冲冼,可可以(yi)会(hui)沥干催芽载种(zhong)(zhong)(zhong)。
2、药液净化(hua)处理过的(de)草种子,勿与食(shi)用、预混(hun)(hun)料放置于分着,不应(ying)(ying)喂饲禽(qin)畜,更不应(ying)(ying)用以代加(jia)工(gong)预混(hun)(hun)料或食(shi♚)品(pin)厂(chang)。
3、口(kou)服药(yao)物(wu)后应减(jian)少药(yao)液等(deng)简(jian)单排放(fang)到养鱼池、虾(xia)塘(tang)等(deng)海产农(nong)村养殖的平台ဣ,减(jian)少导致鱼、虾(xia)、蟹伤亡。
4、农(nong)约纸盒产品(pin)包(bao)装废(fei)旧(jiu)🦄物不可自由舍(she)弃(qi)或自动(dong)应(ying)对,立即归还派出机(ji)关农(nong)约纸盒产品(pin)包(bao)装废(fei)旧(jiu)物收售点。
浸种药品新品种等详请详询当地人飞防团队。