水稻(dao)(dao)(dao)恶(e)苗病(bing)(bing)是(shi)我(wo)区水稻(dao)(dao)(dao)上最主(zhu)要(yao)(yao)的(de)(de)种(zhong)传病(bing)(bing)害,由区农(nong)技(ji)中心抽样送检(jian)经(jing)市农(nong)技(ji)中心检(jian)测,今年(nian)(nian)我(wo)区水稻(dao)(dao)(dao)主(zhu)要(yao)(yao)种(zhong)植品种(zhong)稻(dao)(dao)(dao)种(zhong)恶(e)苗病(bing)(bing)平均(jun)带(dai)菌率为3.6%,最高8%,带(dai)菌率较(jia♓o)去(qu)年(nian)(nian)略低(di)。但鉴(jian)于去(qu)年(nian)(nian)田间发病(bing)(bing)普遍,今年(nian)(nian)恶(e)苗病(bing)(bing)仍存在较(jiao)大流行风险。稻(dao)(dao)(dao)种(zhong)药剂处(chu)理是(shi)控制水稻(dao)(dao)(dao)种(zhong)传病(bing)(bing)害最经(jing)济(ji)有(you)效的(de)(de)措施(shi),为此希(xi)望各街(jie)镇及广(guang)大种(zhong)植户(hu)引(yin)起高度重视(shi),认真做好♏水稻(dao)(dao)(dao)种(zhong)子(zi)处(chu)理工作,为今年(nian)(nian)水稻(dao)(dao)(dao)高产丰收打下良好的(de)(de)基(ji)础。具(ju)体技(ji)术要(yao)(yao)求(qiu)如下:
一、晒种选种
播前选(xuan)晴好(hao)天气晒꧃种(zhong)1~2天,并精选(xuan)种(zhong)子,除(chu)去(qu)秕(bi)粒(li)(li)病粒(li)(li)、减少菌源,以提高种(zhong)子的发芽势,增强秧苗(miao)抗病能力。
二、中和(he)剂处置空气(qi)消毒(du)技術
1、加工方式 :
每4kg稻种(zhong)(zhong)(zhong)(亩用种(zhong)(zhong)(zhong)量(liang))用浸种(zhong)(zhong)(zhong)药剂9ml,采用二(er)次(ci)稀释法,先加少(shao)量(liang)水(shuಞi)(shui)调成(cheng)浆糊(hu)状,然后再加清水(shui)(shui)6kg稀释,配(pei)成(cheng)药液(ye)。将选过的稻种(zhong)(zhong)(zhong)4kg(亩用种(zhong)(zhong)(zhong)量(liang))浸入配(pei)成(cheng)的药液(ye)中搅拌均匀,以药液(ye)高出种(zhong)(zhong)(zhong)子2-3cm为宜。(若(ruo)稻种(zhong)(zhong)(zhong)数量(liang)多可按上述(shu)相应比例(li)配(pei)制(zhi))
2、浸(jin)种(zhong)时(shi)间(jian)(jian):日平均气(qi)温(wen)低于20℃,浸(jin)种(zhong)时(shi)间(jian)(j𒅌ian)应为60小时(shi),20℃以上,浸(jin)种(zhong)时(shi)间(jian)(jian)应在48小时(shi)左右,具体根据(ju)气(qi)温(wen)变化掌握好时(shi)间(jian)(jian),但浸(jin)足时(shi)间(jian)(jian)是꧂保证药效(xiao)的关(guan)键。
三、准备议题
1、浸(jin)种(zhong)溶器用加盖(gai),并(bing)处于阴(yin)凉处闭光处。严🃏阻止(zhi)蛇(she)皮袋间(jian)接浸(jin)种(zhong),切勿不良(liang)影响使用效果。稻种(zhong)消(xiao)毒剂后(h🍰ou)不要求(qiu)青(qing)水冲冼,可间(jian)接沥(li)干催芽(ya)载(zai)种(zhong)。
2、除甲(jia)醛药剂加工(gong)工(gong)艺(yi)处(𓆏chu)理过(guo)的种子bt,勿与吃的食物(wu)、预(yu)混料(liao)厂(chang)放入在一起,应当喂(wei)料(liao)禽畜,更应当用加工(gong)工(gong)艺(yi)预(yu)混料(liao)厂(chang)或食品(pin)𓃲饮料(liao)。
3、联合用药后应解决药液等(🐈deng)就直接(jie)排放水(shui)塘、虾塘等(deng)海产品养殖户(hu)的方面,解决造鱼、虾、蟹生(🌄sheng)亡。
4、化(hua)(hua)肥外包装设(she)计废(fei)品物不能草率抛弃或自愿预防,要及时归还县级(🎃ji)化(hua)(hua)肥外包装设(she)计废(fe🎐i)品物回报点。
浸种药水木种等详请了解位置植物保护相关部门。