怎样用石灰杀虾池青苔?

2025-03-15 03:58:20
推荐回答(1个)
回答1:

虾池中出现青苔后的处理方法:
(1)当虾池未放虾苗而出现大量青苔时,一亩水面撒上几千克生石灰将青苔杀灭,然后排干池水,重新纳水肥池。
(2)当虾池已放养虾苗而出现少量青苔时,此时应尽可能的抬高池水水位,繁殖单胞藻,使池水肥起来,让青苔繁殖不起来,抑制生长。
(3)当虾池已放养虾苗,青苔在池中又大量繁殖,此时应使用药物清除之。用扑草净1ppm与泥沙拌匀,比例1∶100~1∶200,湿度合适。选择晴天下午溶氧时施药,在大汛潮期间,施药后24小时连续换水,直到池水溶氧正常。
青苔对虾池的危害:青苔对虾养殖虽然有利,但也有不利的一面。因为青苔大量繁殖要消耗虾池的养料,使池水严重变瘦,池中的浮游生物增殖受阻,因而影响虾的生长。当青苔在虾池大量繁殖,池水有多深,青苔就有多高,随着水温、气温的升高,青苔会遍布全池,至衰老时丝体断离池底,浮在水面,起水后的虾一旦蹦到青苔上,由于青苔如棉絮状,虾就无法挣扎出来,只能活活的干枯死掉。从而使虾的生长受阻,成活率降低。在高温季节,青苔变黄发白,有的沉底变黑,严重地危害池底,使之散发一种恶臭味,极易引起池虾泛塘。

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