水(shui)(shui)稻(dao)(dao)(dao)(dao)恶苗病(bing)是我区水(shui)(shui)稻(dao)(dao)(dao)(dao)上(shang)最(zui)(zui)主要的种(zhong)(zhong)传(chuan)病(bing)害,由区农(nong)技(ji)中心抽样送检(jian)(jian)经(jing)市农(nong)技(ji)中心检(jian)(jian)测,今年(nian)(nian)我区水(shui)(shui)稻(dao)(dao)(dao)(dao)主要种(zhong)(zhong)植(zhi)品(pin)种(zhong)(zhong)稻(dao)(dao)(dao)(dao)种(zhong)(zhong)恶苗病(bing)平均带菌率为3.6%,最(zui)(zui)高(gao)8%,带菌率较(jiao)(jiao)去(qu)年(nian)(nian)略低。但(dan)鉴(jian)于去(qu)年(nian)(nian)田间(jian)发(fa)病(bing)普遍,今年(nian)(nian)恶苗病(bing)仍存在较(jiao)(jiao)大流行风险(xian)。稻(dao)(dao)(dao)(dao)种(zhong)(zhong)药剂处(chu)理(li)是控制水(shui)(shui)稻(dao)(dao)(dao)(dao)种(zhong)(zhong)传(chuan)病(bing)害最(zui)(zui)经(jing)济有效的措ꦇ施,为此希望各街镇(zhen)及广(guang)大种(zhong)(zhong)植(zhi)户(hu)引起高(gao)度(du)重(zhong)视,认真做好水(shui)(shui)稻(dao)(dao)(dao)(dao)种(zhong)(zhong)子处(chu)理(li)工作,为今年(nian)(nian)水(shui)(shui)稻(dao)(dao)(dao)(dao)高(gao)产丰收打(da)下良好的基础。具(ju)体(ti)技(ji)术要求如下:
一、晒种选种
播前选晴好天(tian)气(qi)晒种(zhong)1~2天(tian),并精(jing)选种(zhong)子(zi),除(chu)去(qu)秕粒(li)病(bing)粒(li)、减少菌🎀源,以(yi)提高种(zhong)子(zi)的(de)发芽势(shi),增强秧(yang)苗抗(kang)病(bing)能力。
二、制(zhi)剂补(bu)救空气消毒科技(ji)
1、治理手段:
每4kg稻(dao)种(zhong)(亩(mu)用种(zhong)量(l💛iang))用浸(jin)种(zhong)药(yao)(yao)剂9ml,采用二次稀(xi)释法(fa),先(xian)加少量(liang)水调(diao)成(cheng)(cheng)浆糊状(zhuang),然(ran)后(hou)再加清水6kg稀(xi)释,配成(cheng)(cheng)药(yao)(yao)液(ye)。将选过的稻(dao)种(zhong)4kg(亩(mu)用种(zhong)量(liang))浸(jin)入配成(cheng)(cheng)的药(yao)(yao)液(ye)中搅拌均匀,以药(yao)(yao)液(ye)高出种(zhong)子2-3cm为宜。(若稻(dao)种(zhong)数(shu)量(liang)多可按上述相应比例配制)
2、浸种(zhong)时(shi)(shi)(shi)间(jian):日平均(jun)气(qi)温(wen)低于20℃,浸种(zhong)时(shi)(shi)(shi)间(jian)应为(wei)60小(xiao)时(shi)(shi)(shi),20℃以上,浸种(zhong)时(shi)(shi)(shi)间(jian)应在48小(xiao)时(shi)(shi)(shi)左右,具体根据气(qi)温(wen)变化掌握好时(shi)(shi)(shi🔯)间(jian),但(dan)浸足时(shi)(shi)(shi)间(jian)是保证药效的(de)关键。
三、目光需要注意的
1、浸(jin)种玻璃容(rong)器用(yong)ꦯ加盖,并放于荫凉(liang)闭(bi)光处✱(chu)。严禁止蛇皮袋马(ma)上(shang)的浸(jin)种,以(yi)避免马(ma)上(shang)影(ying)响(xiang)功能。稻种紫外线消毒(du)后不(bu)用(yong)自来水(shui)冲冼(xian),可马(ma)上(shang)的沥干催芽栽种。
2、化学剂(ji)处理过的(de)花楸树种子(zi),勿与吃的(de)食物、饲ꦅ草在(zai)在(zai)一块,允许喂饲禽畜,更允许时用加工生产饲草或食品(pin)饮料。
3、施药后应制(zhi)止药液等可以(yi)直接直排(pai)到水(shui)塘(tang)、虾塘(tang)等鱼业养(yang)𒅌殖(zhi)场的(de)区域,ꦡ制(zhi)止导致的(de)鱼、虾、蟹枯死。
4、农(nong)药(yao)杀(sha)(sha)虫(ch🐬ong)剂杀(sha)(sha)菌剂纸盒(he)包装盒(he)废(fei)渣物不能(neng)随处抛弃或随意应对,适(shi)时交还各级政府农(nong)药(yao)杀(sha)(sha)虫(chong)剂杀(sha🐻)(sha)菌剂纸盒(he)包装盒(he)废(fei)渣物利用点。
浸种药液蔬菜品种等详请咨询了解。各地植物保护部门管理。