水稻恶苗(miao)病(bing)(bing)是我区(qu)水稻上最主(zhu)要的(de)种(zhong)(zhong)传(chuan)病(bing)(bing)害,由区(qu)农技(ji)(ji)(ji)中心抽(chou)样送(song)检(jian)(jian)经(jing)市农技(ji)(ji)(ji)中心检(jian)(jian)测,今年(nian)(nian)(nian)我区(qu)水稻主(zhu)要种(zhong)(zhong)植品种(zhong)(zhong)稻种(zhong)(zhong)恶苗(miao)病(bing)(bing)平均带菌率为(wei)(wei)3.6%,最高8%,带菌率较(jiao)去(qu)年(nian)(nian)(nian)略(lve)低。但✃(dan)鉴于去(qu)年(nian)(nian)(nian)田间(jian)发病(bing)(bing)普遍,今年(nian)(nian)(nian)恶苗(miao)病(bing)(bing)仍存在(zai)较(jiao)大流行(xing)风险。稻种(zhong)(zhong)药剂处(chu)理是控制水稻种(zhong)(zhong)传(chuan)病(bing)(bing)害最经(jing)济(ji)有效的(de)措施,为(wei)(wei)此希望(wang)各街镇及广大种(zhong)(zhong)植户引起高度重视,认真做好水稻种(zhong)(zhong)子(zi)处(chu)理工作,为(wei)(wei)今年(nian)(nian)(nian)水稻高产(chan)丰收打下(xia)良好的(de)基础。具(ju)体技(ji)(ji)(ji)术(shu)要求如下(xia):
一、晒种选种
播前选晴好天气(qi)晒种1~2天,并精选种𓆏子,除去秕粒(li)病粒(li)、减少(shao)菌源(yuan),以提高种子的发芽势,增强秧苗抗病能(neng)力。
二(er)、中和剂处置杀菌消毒高技(ji)术
1、工作措施:
每4kg稻种(zhong)(꧃zhong)(zhong)(zhong)(亩用(yong)种(zhong)(zhong)(zhong)(zhong)量(liang))用(yong)浸种(zhong)(zhong)(zhong)(zhong)药剂9ml,采(cai)用(yong)二(er)次稀(xi)释法,先加少量(liang)水(shui)调成浆(jiang)糊状,然后再加清水(shui)6kg稀(xi)释,配成药液。将选过的稻种(zhong)(zhong)(zhong)(zhong)4kg(亩用(yong)种(zhong)(zhong)(zhong)(zhong)量(liang))浸入配成的药液中搅拌(ban)均匀,以(yi)药液高出种(zhong)(zhong)(zhong)(zhong)子2-3cm为宜。(若稻种(zhong)(zhong)(zhong)(zhong)数(shu)量(liang)多可(ke)按🌄上(shang)述相应比例(li)配制)
2、浸(jin)种(zhong)时间(jian):日(ri)平均(jun)气温低(di)于20℃,浸(jin)种(zhong)时间(jian)应为ꦡ60小时,20℃以(yi)上(shang),浸(jin)种(zhong)时间(jian)应在48小时左右,具体根据(ju)气温变(bian)化掌握好时间(jian),但浸(jin)足时间(jian)是(shi)保证药效的(de)关键。
三、需注意须知
1、浸种(zhong)容(r🏅ong)器(qi)类(lei)要加盖,并(bing)置(zhi)放阴凉处遮光处。严阻止(zhi)蛇皮袋进行(xing)浸种(zhong),进而的影响(xiang)疗(liao)效。稻种(zhong)消毒液后(hou)不要青(qing)水冲冼(xian),可进行(xing)沥干催芽插(cha)种(zhong)。
2、解毒剂进行(xing)处理过的花楸树种子,勿与饮品、饲🔜(si)草放(fang)入一件,不(bu)允许喂养禽畜(chu),更不(bu)允许时用(yong)生产(chan)制造饲(si)草或(huo)肉食品。
3、择药后(hou)应(ying)避开药液(ye)等直接性(xing)直排养鱼塘、虾塘等水产业养殖(zhi)业的部(bu)位(𒅌wei),避开从而造成鱼、虾、蟹死忙。
4、农(nong)药杀𝓡(sha)菌剂杀(sha)菌剂礼品盒废物处(chu)理物不得已直接丢掉或立即救治,即使归还各部(bu)农(nong)药杀(sha)菌剂杀(s꧟ha)菌剂礼品盒废物处(chu)理物二手回收点。
浸种药物制剂种类等详请咨询中心本省植物保护相关部门。