水(shui)(shui)(shui)稻(dao)(dao)恶苗(miao)病(bing)(bing)是(shi)我区(qu)水(shui)(shui)(shui)稻(dao)(dao)上最(zui)主要(yao)的(de)种(zhong)(zhong)传病(bing)(bing)害,由区(qu)农技(ji)(ji)中心抽样送(song)检经(jing)市农技(ji)(ji)中心检测,今年(nian)我区(qu)水(shui)(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(miao)病(bing)(bing)平均带菌率为(wei)(wei)3.6%,最(zui)高8%,带菌率较(jiao)去(qu)年(nian)略低。但鉴(jian)于去(qu)年(nian)田间发病(bing)(bing)普遍,今年(nian)恶苗(miao)病(bing)(bing)仍存在较(jiao)大(da)流(liu)行(xing)风险。稻(dao)(dao)种(zhong)(zhong)药(yao)剂(ji)处(chu)理是(shi)控制水(shui)(shui)(shui)稻(dao)(dao)种(zhong🅘)(zhong)传病(bing)(bing)害最(zui)经(jing)济有效的(de)措施,为(wei)(wei)此希望各街镇及(ji)广(guang)大(da)种(zhong)(zhong)植(zhi)户(hu)引(yin)起高度(du)重视,认真做好(hao)水(shui)(shui)(shui)稻(dao)(dao)种(zhong)(zhong)子(zi)处(chu)理工作(zuo),为(wei)(wei)今年(nian)水(shui)♔(shui)(shui)稻(dao)(dao)高产丰收打下良好(hao)的(de)基础。具体技(ji)(ji)术要(yao)求如下:
一、晒种选种
播前选(xuan)晴好天(tian)气晒(shai)种(zhong)1~2天(tian),并精选(xuan)种(zhong)子(zi),除去秕粒病粒、减少菌源,以🌜提(ti)高种(zhong)子(zi)的发芽(ya)势(shi),增强秧苗抗病能力。
二(er)、药液除理清洗方法
1、办理具体方法:
每4kg✱稻种(zhong)(zhong)(亩用种(zhong)(zhong)量(liang))用浸种(zhong)(zhong)药剂9ml,采(cai)用二次稀释法(fa),先加少量(liang)水调成浆糊状,然后再加清水6kg稀释,配成药液。将选过(guo)的(de)稻种(zhong)(zhong)4kg(亩用种(zhong)(zhong)量(liang))浸入配成的(de)药液中(zhong)搅拌均(jun)匀,以(yi)药液高出🦩种(zhong)(zhong)子2-3cm为(wei)宜(yi)。(若(ruo)稻种(zhong)(zhong)数量(liang)多可按上(shang)述相应比例(li)配制)
2、浸种(zhong)时(shi)(shi)间(jian)(jian):日平均气温低于20℃,浸种(zhong)时🍨(shi)(shi)间(jian)(jian)应为(wei)60小时(shi)(shi),20℃以上,浸种(zhong)时(shi)(shi)间(jian)(jian)应在48小时(shi)(shi)左右(you),具(ju)体根据气温变化(hua)掌握好时(shi)(shi)间(jian)(jian),但浸足时(shi)(shi)间(jian)(jian)是保(bao)证(zheng)药效的关键。
三、注重项目
1、浸种储槽用加盖,并放在阴凉处闭光(guang)处。严停止使(shi)用蛇皮袋进行浸种,一旦损(sun)害特效。稻种消毒液后不应(ying𒁏)该(gai)冷水冲冼,可进🐻行沥干催芽插种。
2、去除剂的计量处里过的花楸树种子(zi),勿与(yu)口味(wei)、预混(hun)料放(fang)置一起去,不容许(xu)喂养禽畜,更不容许(xu)用做制造预混(hun)料或食品(pin)原𓂃料。
3、治(zhi)疗后应尽(jin🦄)﷽量不(bu)要药液等一直流进鱼池、虾塘等海产品养殖(zhi)业的(de)点(dian),尽(jin)量不(bu)要导(dao)致鱼、虾、蟹(xie)消失。
4、除草剂进行(xing)再生废物(wu)物(wu)不容(rong)许随着舍弃(qi🎐)或私自代(dai)理,即(ji)时(shi)归还各级政(zheng)府除草剂进行(xing)再生废物(wu)🧸物(wu)二(er)手(shou)回收点。
浸种解毒药品系等详请资讯本土飞防监管部门。