水稻(dao)(dao)(dao)恶(e)苗(miao)病(bing)(bing)是我(wo)区水稻(dao)(dao)(dao)上(shang)最主要(yao)的(de)种(zhong)(zhong)传病(bing)(bing)害,由区农技中(zhong)心(xin)抽(chou)样送(song)检(jian)经(jing)市农技中(zho🔯ng)心(xin)检(jian)测,今年(nian)(nian)我(wo)区水稻(dao)(dao)(dao)主要(yao)种(zhong)(zhong)植品种(zhong)(zhong)稻(dao)(dao)(dao)种(zhong)(zhong)恶(e)苗(miao)病(bing)(bing)平均带(dai)菌率为(wei)3.6%,最高(gao)8%,带(dai)菌率较(jiao)(jiao)去(qu)年(nian)(nian)略低。但鉴于去(qu)年(nian)(nian)田间发病(bing)(bing)普遍(bian),今年(nian)(nian)恶(e)苗(miao)病(bing)(bing)仍存在(zai)较(jiao)(jiao)大流行风(feng)险(xian)。稻(dao)(dao🎀)(dao)种(zhong)(zhong)药剂(ji)处理是控制水稻(dao)(dao)(dao)种(zhong)(zhong)传病(bing)(bing)害最经(jing)济有效的(de)措施,为(wei)此希望各(ge)街镇及广大种(zhong)(zhong)植户引(yin)起高(gao)度重视,认真做好水稻(dao)(dao)(dao)种(zhong)(zhong)子处理工作(zuo),为(wei)今年(nian)(nian)水稻(dao)(dao)(dao)高(gao)产丰收(shou)打下良好的(de)基础。具体技术要(yao)求如下:
一、晒种选种
播🀅前(qian)选晴好(hao)天气晒种1~2天,并(bing)精选种子,除去秕粒(li)病粒(li)、减少菌源(yuan),以提高种子的发芽势,增强(qiang)秧(yꦑang)苗(miao)抗病能力。
二、制剂处(chu)里消(xiao)毒杀菌科技
1、操作手段:
每4kg稻(dao)种(zhong)(zhong)(zhong)(亩用(yong)(yong)(yong)种(zhong)(zhong)(zhong)量)用(yong)(yong)(yong)浸种(zhong)(zhong)(zhong)药(yao)剂9ml,采(cai)用(yong)(yong)(yong)二次稀释法,先加🧜少量水(shui)调成浆糊状,然后再加清(qing)水(shu💛i)6kg稀释,配(pei)(pei)成药(yao)液(ye)。将选过的(de)稻(dao)种(zhong)(zhong)(zhong)4kg(亩用(yong)(yong)(yong)种(zhong)(zhong)(zhong)量)浸入配(pei)(pei)成的(de)药(yao)液(ye)中搅拌均匀,以药(yao)液(ye)高出(chu)种(zhong)(zhong)(zhong)子(zi)2-3cm为宜。(若稻(dao)种(zhong)(zhong)(zhong)数(shu)量多(duo)可按(an)上述相应比例配(pei)(pei)制)
2、浸(jin)种(zhong)时间(jian):日平均气温低于20℃,浸(jin)种(zhong)时间(👍jian)应为60小时,20℃以(yi)上,浸(jin)种(zhong)时间(jian)应在48小时左右,具(ju)体(ti)根据(ju)气温变化掌握好时间(jian),但浸(jin)足时间(jian)是保证药效(xiao)的关键。
三、注重方式方法
1、浸种干净的器皿应该(gai)加盖,并(bing)放置于阴(yin)暗处(chu)阴(yin)凉处(chu)。严禁止(z🐻hi)蛇皮袋随便浸种,以(yi)防影响(xiang)到(dao)效果🥀好。稻种清(qing)洗后不应该(gai)青水冲冼,可随便沥干催芽采收。
2、药(yao)水除(chu)理过的原材料(liao),勿与粮食(shi)、词料(liao)放(fang)置在我们(men)一起,严禁喂料(liao)禽💧畜,更严禁来加工处理词料(liao)或食(shi)品加工。
3、药物(wu)治疗后(hou💟)应(ying)以免 药液等之间排进水塘、虾塘等渔业家庭养殖的平(ping)台,以免 从而造(zao)成(cheng)鱼、虾、蟹死亡视频。
4、化肥杀(sha)菌剂(ji)产♍(chan)品(pin)包(bao)装(zhuang)袋(dai)废品(pin)物不得当私自放弃或强制正确处理,不能(neng)交(jiao)还各项化肥杀(sha)菌剂(ji)产(chan)品(pin)包(bao)装(zhuang)袋(dai)废品(pin)物收(shou)回(hui)点。
浸种去除剂的计量种类等详请咨询了解。日本值保科室。