水稻(dao)恶(e)苗病(bing)是(shi)(shi)我区(qu)水稻(dao)上最(zui)(zui)(zui)主要(yao)(yao)的种(zhong)(zhong)传(chuan)病(bing)害(hai),由(you)区(qu)农技中(zhong)心抽(chou)样送检(jian)经市(shi)农技中🌱(zhong)心检(jian)测,今年我区(qu)水稻(dao)主要(yao)(yao)种(zhong)(zhong)植(zhi)品种(zhong)(zhong)稻(dao)种(zhong)(zhong)恶(e)苗病(bing)平均带菌(jun)率(lv)为3.6%,最(zui)(zui)(zui)高8%,带菌(jun)率(lv)较去(qu)年略(lve)低。但(dan)鉴于去(qu)年田间发(fa)病(bing)普(pu)遍,今年恶(e)苗病(bing)仍存在较大流行风险。稻(dao)种(zhong)(zhong)药剂处(chu)理(li)是(shi)(shi)控制(zhi)水稻(dao)种(zhong)(zhong)传(chuan)病(bing)害(hai)最(zui)(zui)(zui)经济有效的措施(shi),为此(ci)希望各街镇及广大种(zhong)(zhong)植(zhi)户引起高度重视,认真(zhen)做好水稻(dao)种(zhong)(zhong)子处(chu)理(li)工(gong)作(zuo),为今年水稻(dao)高产丰收打(da)下(xia)良好的基础。具体(ti)技术要(yao)(yaoꦗ)求(qiu)如(ru)下(xia):
一、晒种选种
播前选晴好(haoꦜ)天气(qi)晒种1~2天,并(bing)精选种子,除去(qu)秕粒病粒、减少菌源(yuan),以提高(gao)种子的ও发芽势,增(zeng)强秧苗抗病能力(li)。
二(er)、药物(wu)制剂办理消毒杀菌(jun)技术工艺
1、治理 技巧:
每4kg稻种(zhong)(亩(mu)(mu)用(yong)(yong)种(zhong)量(liang)(liang))用(yong)(yong)浸种(zhong)药(yao)(yao)(yao)剂9ml,采用(yong)(yong)二(er)次稀(xi)释(shi)法,先加少量(liang)(liang)水调成(cheng)浆(jiang)糊状,然后再加清水6kg稀(xi)释(shi),配成(cheng)药(yao)(yao)(yao)液(ye)(ye)。将选过的稻种(zhong)4kg(亩(mu)(mu)用(yong)(yong)种(zhong)量(liang)(liang))浸入配成(cheng)的药(yao)(yao)(yao)液(ye)(ye)中搅(jiao)拌均匀(yun),以药(yao)(yao)(yao)液(ye)(ye)高出种(zhong)子2-3cm为宜(yi)。(若稻种(zhong)数量(liang)(liang)多可按🔯上述相应比例配制(zhi))
2、浸(jin)种时(shi)(shi)间(jian):日平均气(qi)温(wen)(wen)低于20℃,浸(jin)种时(shi)(shi)间(jian)应为60小时(shi)(shi),20℃以上,浸(jin)种时(shi)(shi)间(jian)应在48小时(shi)(shi)左右(you),具体根(gen)据气(qi)温(wen)(wen)变(bian)化掌握好时(shi)(shi)间(j🔴ian),但(dan)浸(jin)足(zu)时(shi)(shi)间(jian)是保证药(yao)效的关键。
三、特别留意须知
1、浸种(zhong)收纳空间(jian)要(yao)加(jia)盖(gai),并放于(yu)通风遮光处。严不(bu)可用(yong)蛇皮(pi)袋马上浸种(zhong),为了防止影(ying)🍸响力效(xiao)果(guo)好(hao)。稻种(zhong)空气消毒后不(bu)需用(yong)用(yong)水冲冼,可马上沥干催(cui)芽秋播。
2、药(yao)品操作过的种子地(di)址(zhi),勿与吃食、饲草(cao)(cao)添(tiaꦉn)加(jia)剂都(dou)放在(zai)同时(shi),不可喂食禽畜,更不可是用来工艺饲草(cao)(cao)添(tian)加(jia)剂或食物。
3、使(shi)用药(yao)物后(hou)应禁(jin)止药(yao)液等(deng)随便ꦉ倾(qing)倒(dao)垃圾水塘、虾塘等(deng)海(hai)产品(pin)养殖(zhi)场的(de)城市,禁(jin)止引致(zhi)鱼、虾、蟹死亡(wang)者。
4、农药杀菌剂杀虫剂彩(cai)盒废(fei)料物不能私自抛(pao)弃或擅自治(zhi)理,马(ma)上归还(ha𒁃i)派出🌳机关农药杀菌剂杀虫剂彩(cai)盒废(fei)料物回收(shou)分类处理点。
浸种药水款式等详请质询当地的植物保护部。