水(shui)(shui)稻恶(e)苗病(bing)(bing)(bing)是(shi)我区水(shui)(shui)稻上(shang)最(zui)主要的种(zhong)(zhong)传病(bing)(bing)(bing)害(hai),由区农(nong)技中(zhong)心抽样送检经市农(nong)技中(zhong)心检测,今(jin)年我区水(shui)(shui)稻主要种(zhong)(zhong)植(zhi)品(pin♌)种(zhong)(zhong)稻种(zhong)(zhong)恶(e)苗病(bing)(bing)(bing)平均带(dai)菌率(lv)为(wei)3.6%,最(zui)高(gao)(gao)8%,带(dai)菌率(lv)较去(qu)年略低。但鉴于去(qu)年田间(jian)发病(bing)(bing)(bing)普遍(bian),今(jin)年恶(e)苗病(bing)(bing)(bing)仍存在较大流行风险。稻种(zhong)(zhon𓄧g)药(yao)剂处理(li)是(shi)控制水(shui)(shui)稻种(zhong)(zhong)传病(bing)(bing)(bing)害(hai)最(zui)经济有效的措施,为(wei)此希(xi)望各街镇及(ji)广大种(zhong)(zhong)植(zhi)户引起高(gao)(gao)度重视(shi),认(ren)真(zhen)做好水(shui)(shui)稻种(zhong)(zhong)子处理(li)工作,为(wei)今(jin)年水(shui)(shui)稻高(gao)(gao)产(chan)丰(feng)收打下良好的基(ji)础。具体(ti)技术要求(qiu)如下:
一、晒种选种
播前选晴好天气晒(shai)种(zhong)1~2天,并精选种✱(zhong)子,除去秕粒(li)病(bing)粒(li)、减少(shao)菌源,以提高种(zhong)子的(de)发芽(ya)势,增强秧(yang)苗抗病(bing)能力(li)。
二、解毒剂(ji)补救清(qing)洁水平(ping)
1、正确处理工艺:
每(mei)4kg稻种(zhong)(zhong)(zhong)(zhong)(亩用(yong)种(zhong)(zhong)(z🐻hong)(zhong)量(liang))用(yong)浸种(zhong)(zhong)(zhong)(zhong)药剂9ml,采用(yong)二次稀释(shi)法,先(xian)加少(shao)量(liang)水调成(cheng)浆糊状,然后再加清水6kg稀释(shi),配(pei)成(cheng)药液。将选过的稻种(zhong)(zhong)(zhong)(zhong)4kg(亩用(yong)种(zhong)(zhong)(zhong)(zhong)量(liang))浸入配(pei)成(cheng)的药液中(zhong)搅(jiao)拌均匀,以药液高出种(zhong)(zhong)(zhong)(zhong)子(zi)2-3cm为宜。(若稻种(zhong)(zhong)(zhong)(zhong)数量(liang)多可按上述相应(ying)比例配(pei)制)
2、浸种时(shi)间(jian):日平均气温(wen)(wen)低于20℃,浸种时(shi)间(jian)应为60小时(shi),20℃以(yi)上,浸种时(shi)间(jian)应在48小时(shi)左右,具体(ti)根据气温(wen)(wen)变化(hua)掌握好时(shi)间(jian),但浸足时(shi)间(jian)是保证药效(xia𝕴o)的关键。
三、要留意细节
1、浸种不(bu)锈钢(gang)容(rong)器必须 盖,并置入(ru)通风阴凉处。严停用蛇(she)皮袋(dai)马(ma)上꧟浸种,如不(bu)作用作用。稻种酒精消(xiao)毒后不🅺(bu)必须 纯净水冲冼,可马(ma)上沥干催(cui)芽种植。
2、化学剂𒊎补救过(guo)的(de)花楸树种子,勿与吃的(de)、饲草在在一起,没法喂食禽畜,更没法来生产(chan)加工饲草或(huo)食品(pin)饮料。
3、用(yong)药(yao)量后应不要(yao)药(yao)液等(deng)进(jin)行𒁃外(wai)排养鱼塘(tang)、虾塘(tang)等(deng)鱼业养殖猪的特点(dian),不要(yao)引(yin)起(qi)鱼、虾、蟹(xie)突然死亡。
4、药(yao)剂(ji)杀(s🌳ha)菌(jun)剂(ji)内(nei)外(wai)包装(zhuang)废(fei)物物不容许草(cao)率丟弃或直接处里(li),直接交还派出(chu)机关🃏药(yao)剂(ji)杀(sha)菌(jun)剂(ji)内(nei)外(wai)包装(zhuang)废(fei)物物回收并点(dian)。
浸种解毒剂蔬菜品种等详请咨讯本地人植物保护部分。