水(shui)稻(dao)(dao)恶苗(miao)病(bing)(bing)是我区(qu)水(shui)稻(dao)(dao)上最主要的(de)种(zhong)(zhong)传病(bing)(bing)害,由区(qu)农(nong)技(ji)中心抽样送检经市(shi)农(nong)技(ji)中心检测,今(jin)年我区(qu)水(shui)稻(dao)(dao)主要种(zhong)(zhong)植(zhi)品种(zhong)(zhong)稻(dao)(dao)种(zhong)(zhong)恶苗(miao)病(bing)(bing)平均带菌率为3.6%,最高8%,带菌率较去年略低。但鉴于去年田间发病(bing)(bing)普(pu)遍,今(jin)年恶苗(miao)病(bing)(bing)仍存在较大流(liu)行风(feng)险(xian)。稻(dao)(dao)种(zhong)(zhong)药剂处(chu)理是控(kong)制水(shui)稻(dao)(dao)种(zhong)(zhong)传病(bing)(bing)害最经济有效的(de)措施,为此(ci)希望(wang)各(ge)街镇及广大种(zhong)(zh𒊎ong)植(zhi)户引(yin)起高度重视,认真做好水(shui)稻(dao)(dao)种(zhong)(zhong)子(zi)处(chu)理工(gong)作,为今(jin)年水(shui)稻(dao)(dao)高产丰收打下良好的(de)基础。具体(ti)技(ji)术要求如下:
一、晒种选种
播前选(൲xuan)晴好天气晒(shai)种1~2天,👍并(bing)精选(xuan)种子,除去秕粒(li)病粒(li)、减少菌源,以提高种子的发芽势,增强秧苗抗病能力。
二(er)、中和剂补救空气消毒能力(li)
1、加工处理的(de)方法(fa):
每4kg稻种(zhong)(zhong)(zhong)(zhong)(亩用(yong)种(zhong)(zhong)(zhong)(zhong)量(liang)(liang))用(yong)浸(jin)种(zhong)(zhong)(zhong)(zhong)药(yao)剂9ml,采用(yong)二次稀释法,先加少量(liang)(liang)水调(diao)成(cheng)浆糊状,然后再(zai)加清水6kg稀释,配成(cheng)药(yao)液。将(jiang)选过的稻种(zhong)(zhong)(zhong)(zhong)4kg(亩用(yong)种(zhong)(zhong)(zhong)(zhong)量(liang)(liang))浸(jin)入配成(cheng)的药(yao)液中搅拌(ban)均(jun)匀(yun),以药(yao)液高出种(zhong)(zhong)(zhong)(zhong)子2-3cm为宜。(若稻种(zhong)(zhong)(zhong)(zhong)数量(liang)(liang)多可按(an)上述相应比(bi)ꦕ例配制)
2、浸(jin)种时间(jian)(jian)(jian):日平均气温(wen)低于20℃,浸(jin)种时间(jian)(jian)(jian)应为(wei)60小时,20℃ꦜ以上,浸(jin)种时间(jian)(jian)(jian)应在48小时左右,具体根据气温(wen)变化掌握好时间(jian)(jian)(jian),但(dan)浸(jin)足(zu)时间(jian)(jian)(jian)是保证药效的(de)关键。
三(san)、特别留(liu)意方式方法(fa)
1、浸种器皿要🎶加盖,并放置到(dao)阴暗处闭光处。严关闭蛇皮(pi)袋随时浸种,否则不(bu)良影响(xꦕiang)视(shi)觉效果。稻种进行消毒(du)后不(bu)应该温(wen)水冲冼,可随时沥干催芽载种。
2、药物处(chu)置(zhi)(zhi)过的种子网(wang),勿与水果(guo)、饲草(cao)放置(zhi)(zꦏhi)一起去(qu),不准(zhun)🍃喂(wei)食禽畜,更(geng)不准(zhun)可以制作(zuo)加工饲草(cao)或肉制品。
3、用药(yao)治疗后应防范药(yao)液(ye)等可(ke)以排向(xiang)渔塘、虾(xia)💛塘等渔业饲养的特点,防范引(yin)起(qi)鱼、虾(xia)、蟹死(si)掉(ꦺdiao)。
4、农约(yue)包装(zhuang)设计箱丟(diu)弃(qi🧜)(qi)物没法私自(zi)丟(diu)弃(qi)(qi)或自(zi)动(dong)应急处置,及(ji)时(shi)的交给各ꦗ个(ge)等级(ji)农约(yue)包装(zhuang)设计箱丟(diu)弃(qi)(qi)物回收处理点。
浸种的药剂产品种类等详请询问场地值保个部门。