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已读[219] 发布: 2013/05/06 16:31:04
发病期间用环丙沙星浸泡; 鳝池用上草克全池泼洒,连续3天。 白头病 此病与烂尾病一样,也主要在引种后的15天内发生,死亡率高。 病原:为产气单胞菌的一种,...
已读[76] 发布: 2013/05/06 15:15:24
谨慎使用有机磷杀虫剂如敌百虫、氯氰菊酯(合成拟除虫菊酯)等杀灭病毒载体生物如野生的虾、蟹等。地下水和泥沙水进池塘前需要进行曝气等方式的处理。三、EMS暴发的...
已读[536] 发布: 2013/05/06 15:15:21
防治用药:50%高效氯氰菊酯与啶虫脒混配或用20%丁硫克百威1500-2000倍液喷雾。 (4)防治盲蝽蟓:棉田第一代盲蝽蟓常年在六月上旬发生危害,但今年是倒春寒天气,...
已读[124] 发布: 2013/05/06 15:08:21
在配种高峰季节出现的公诸配种过度症,可用当归30克,升麻、侧柏叶各20克,黄芪、车前子各15克,瞿麦、防风、水灯草各10克,加水煎煮15分钟后,待凉去渣,与少量精...
已读[29] 发布: 2013/05/03 18:28:33
为确保幼苗安全,该连职工根据多年的经验和害虫的习性,总结出多套防治办法,其中用食用芝麻油、敌百虫药液与麸皮混合制成药饵,在傍晚时分均匀的洒在农田四周,采用这种...
已读[58] 发布: 2013/05/03 18:28:28
目前常用的药浴药物有敌百虫、辛硫磷,舒利保、30%的烯虫磷乳油等。药浴时要注意以下几点:药浴应选择在睛朗暖和天气的上午进行,以便在中午时羊毛能干燥;药浴前要...
已读[28] 发布: 2013/05/03 18:28:21
ICIS (subscription) Busan port in South Korea SINGAPORE (ICIS)--South Korea's benzene exports to the US stood at slightly above 20,000 tonnes in April, down by half from March as the window for arbitrage trades failed to open during the month, market players said on Friday.
已读[28] 发布: 2013/05/03 18:28:19
ICIS (subscription) LONDON (ICIS)--The European May benzene contract has been confirmed at €1,056/tonne, up €64/tonne from the previous month, as the initial settlement received further support from players on Friday. The contract was agreed at a US dollar concept of ...
已读[29] 发布: 2013/05/03 18:28:18
Denver Post The contamination of Parachute Creek after an industry spill is worsening with the level of cancer-causing benzene exceeding the federal safe drinking water standard. Creek water tests found benzene reaching 5.3 parts per billion at the sampling spot ...
已读[395] 发布: 2013/05/03 16:36:54
烟剂薰棚:用45%的百菌清烟剂或异菌脲烟剂,每亩,分散5-6处点燃,熏蒸一夜,每9天左右1次。 药剂防治:用58%赛福或50%的多菌灵或50%的速克灵可湿性粉剂...
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