水(shui)稻(dao)(dao)(dao)恶(e)(e)苗(miao)病是我区(qu)水(shui)稻(dao)(dao)(dao)上最(zui)主要的种(zhong)(zhong)(zhong)传(chuan)(chuan)病害,由区(qu)农技(ji)中心抽(chou)样送检经市农技(ji)中心检测(ce),今年(nian)我区(qu)水(shui)稻(dao)(dao)(dao)主要种(zhong)(zhong)(zhong)植(zhi)(zhi)品种(zhong)(zhong)(zhong)稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)恶(e)(e)苗(miao)病平(ping)均(jun)带菌率为🔯3.6%,最(zui)高(gao)8%,带菌率较(jiao)去(qu)年(nian)略低。但鉴于去(qu)年(nian)田(tian)间发病普遍,今年(nian)恶(e)(e)苗(miao)病仍存在较(jiao)大(da)(da)流(liu)行风险。稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)药剂处(chu)理是控制水(shui)稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)传(chuan)(chuan)病害最(zui)经济有(you)效的措(cuo)施,为此希望各街镇及广(guang)大(da)(da)种(zhong)(zhong)(zhong)植(zhi)(zhi)户(hu)引起高(gao)度重视,认真(zhen)做好(hao)(hao)水(shui)稻(dao)(dao)(dao)种(zhong)(zhong)(zhong)子处(chu)理工作,为今年(nian)水(shui)稻(dao)(dao)(dao)高(gao)产丰(feng)收打下(xia)良好(hao)(hao)的基(ji)础。具体技(ji)术要求如(ru)下(xia):
一、晒种选种
播前选(xuan)晴好天气晒(shai)种(zhong)1~2天,并精选(xuan)种(zhong)子,除去(qu)秕(bi)粒病(bing)粒、减(jian)少(shao)菌源,以提(ti)高(gao)种(zhong)子的发芽(ya)势,增(ze♈ng)强秧苗(miao)抗(kang)病(bing)能力。
二、化(hua)剂加工处理灭菌技(ji)艺
1、加(jia)工处理(li)的方法:
每4kg稻种(zhong)(亩(mu)用种(zhong)量(liang)(liang))用浸种(zhong)药(yao)(yao)(yao)剂9ml,采用二次稀释(shi)法,先加少量(liang)(liaꦇng)水调成(cheng)浆糊状,然后(hou)再(zai)加清水6kg稀释(shi),配成(cheng)药(yao)(yao)(yao)液(ye)(ye)。将选过(guo)的稻种(zhong)4kg(亩(mu)用种(zhong)量(liang)(liang))浸入(ru)配成(cheng)的药(yao)(yao)(yao)液(ye)(ye)中(zhong)搅拌均匀,以药(yao)(yao)(yao)液(ye)(ye)高出种(zhong)子2-3cm为宜。(若(ruo)稻种(zhong)数量(liang)(liang)多(duo)可(ke)按上述相应比例(li)配💝制)
2、浸(jin)种时(shi)(shi)(shi)间(jian)(jian)(jian):日平(ping)均(jun)气温低𒀰于20℃,浸(ji𓆉n)种时(shi)(shi)(shi)间(jian)(jian)(jian)应(ying)为(wei)60小(xiao)时(shi)(shi)(shi),20℃以上(shang),浸(jin)种时(shi)(shi)(shi)间(jian)(jian)(jian)应(ying)在(zai)48小(xiao)时(shi)(shi)(shi)左右,具体根(gen)据气温变化掌握好时(shi)(shi)(shi)间(jian)(jian)(jian),但(dan)浸(jin)足时(shi)(shi)(shi)间(jian)(jian)(jian)是保证药(yao)效的关键。
三、小心相关事宜
1、浸种容器等需求(qiu)加(jia)盖,并(bing)放置于荫凉闭(bi)光处。严关闭(b💙i)蛇(she)皮袋会(hui)浸种,为了(le)防(fang)止影响到目的。稻种空(kong)气消毒后不需求(qiu)纯净水冲冼🌜,可会(hui)沥干催(cui)芽插种。
2、药液外理(li)过的(de)種子,勿与吃食、饲草存(cun𓆉)放在(zai)一个,不(bu)能喂饲禽畜(🅘chu),更不(bu)能也可(ke)以(yi)代加工饲草或食品厂。
3、联合用药后应逃(tao)避药液等(🅷deng)会直接外排鱼池、虾塘等(deng)水(shui)产海产品(pin)生态养殖的(de)部位,逃(tao)避可能会导致鱼、虾、蟹(xie)死亡视频。
4、药剂木(mu)箱(xiang)废(fei)(fei)物(wu)物(wu)不恰随处(chu)舍(꧒she)弃(qi)或自(zi)愿正确处(chu)理,迅速交给派(pai)出机(ji)关(guan)药剂木(mu)箱(xiang)废(fei)(fei)物(wu)物(wu)回收(shou)并点。
浸种药物制剂类型等详请咨询了解。各地值保部门乃至每一位员工。