水(shui)(shui)稻(dao)(dao)恶苗病(bing)(bing)(bing)是我区(qu)水(shui)(shui)稻(dao)(dao)上最(zui)主要(yao)的种(zhong)(zhong)传病(bing)(bing)(bing)害,由(you)区(qu)农技中(zhong)心抽样送检(jian)经(jing)市农技中(zhong)心检(jian)测,今(jin)年(nian)(nian)我区(qu)水(shui)(shui)稻(dao)(dao)主要(yao)种(zhong)(zhong)植(zhi)品(pin)种(zhong)(zhong)稻(dao)(dao)种(zhong)(zhong)恶苗病(bing)(bing)(bing)平均带菌(jun)率为(wei)(wei)3.6%,最(zui)高8%,带菌(jun)率较(jiao)去(qu)年(nian)(nian)略低(di)。但鉴于去(qu)年(nian)(nian)田间发病(bing🎃)(bing)(bing)普遍,今(jin)年(nian)(nian)恶苗病(bing)(bing)(bing)仍存在(zai)较(jiao)大(da)(da)流行风(feng)险。稻(dao)(dao)种(zhong)(zhong)药剂处(chu)理是控制水(shui)(shui)稻(dao)(dao)种(zhong)(zhong)传病(bing)(bing)(bing)害最(zui)经(jing)济有效的措(cuo)施,为(wei)(wei)此希望各街镇及广大(da)(da)种(zhong)(zhong)植(zhi)户引起(qi)高度重视,认真做好水(shui)(shui)稻(dao)(dao)种(zhong)(zhong)子处(chu)理工作(zuo),为(wei)(wei)今(jin)年(nian)(nian)水(shui)(shui)稻(dao)(dao)高产(chan)丰收打下良好的基础。具体技术要(yao)求如下:
一、晒种选种
播前(qian)选晴好天ꦛ气晒种1~2天,并精选种🌟子,除(chu)去秕粒(li)病粒(li)、减少菌源,以提高种子的(de)发芽势,增强(qiang)秧苗抗病能力(li)。
二、除甲醛药剂补(bu)救酒精消毒技(ji)术(shu)性(xing)
1、处置具体方法:
每4kg稻种(zhong)(zhong)(亩用(yong)种(zhong)(zhong)量(liang))用(yong)浸种(z꧂hong)(zhong)药剂9ml,采用(yong)二(er)次稀释法,先加(jia)少(shao)量(liang)水调成浆糊状(zhuang),然后再加(jia)清(qing)水6kg稀释,配(pei)成药液(ye)(ye)𓆏。将选过的稻种(zhong)(zhong)4kg(亩用(yong)种(zhong)(zhong)量(liang))浸入配(pei)成的药液(ye)(ye)中搅(jiao)拌均(jun)匀,以药液(ye)(ye)高出种(zhong)(zhong)子2-3cm为宜。(若稻种(zhong)(zhong)数量(liang)多可按上述相应比例配(pei)制)
2、浸(jin)种时(shi)(shi)间(jian):日平(ping)均(jun)气(qi)温(wen)低于20℃,浸(jin)种时(shi)(shi)间(jian)应为60小(xiao)时(shi)(shi),20℃以(yi)上,浸(jin)种时(shi)(shi)间(jian)应在48小(xiao)时(shi)(shi)左右,具体根据气(qi)温(wen)变化掌握好时(shi🥃)(shi)间(jian),但浸(jin)足时(shi)(shi)间(jian)是保证(zheng)药效的关键。
三、还要注意要点
1、浸种不锈钢容器🦋用加盖,并放于阴暗处闭光处。严阻止(zhi)蛇皮袋真接浸种,防(fang)止(zhi)危害体验。稻种清洁消毒(du)后(hou)෴不想要青水冲冼,可真接沥干催芽(ya)秋播。
2、化学(xue)剂(ji)治理过(guo)的(de)(de)种籽,勿与(yu)的(de)(de)食物、青(qing)精饲料放(fang)入(ru)一(yi🌱)💃块儿,不了喂料禽畜,更(geng)不了来用(yong)作(zuo)加工(gong)处理青(qing)精饲料或食材。
3、用(yong)药(yao)指导(dao)后应杜(du)绝药(yao)液等简单倾倒垃圾养(yangꦺ)鱼池、虾(xia)塘等水产品农村养(yang)殖的区域(yu),杜(du)绝可能会导(dao)致鱼、虾(xia)、蟹(xie)伤亡。
4、除(chu)草剂再生废渣物(wu)不恰隨便舍(she)弃或自(zi)动救治(zhi),快速交给地方党(dang)委除(chu)草剂再生废渣🔥物(wu)收回点。
浸种药液产品种类等详请顾问当地的植物保护监管部门。