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luo shi zhao xia yu peng ze zuo hun yang shi yan
Author(s): 
Pages: 26
Year: Issue:  2
Journal: China Fisheries

Keyword:  罗氏沼虾彭泽鲫推广站生石灰塑料布防渗冰冻小杂鱼鲫鱼池塘面积我国北方蜕皮激素;
Abstract: 罗氏沼虾在我国北方尚处于试养阶段,为探索其养殖途径,我们在河北省淡水养殖试验示范场进行了鲫鱼种地混养罗氏沼虾试验,取得了理想效果。现将该试验介绍如下:一、条件与方法1.池塘条件。池塘为沙滩地塑料布防渗地,保水性能好,面积3.5亩,坡度1:4,池底平坦,沙土质,少淤泥,水深1.2m。池塘一角设有浅滩,约占池塘面积的1/5,水源为地下水,本设增氧机。2.放养前的准备。(1)清塘消毒。在放养前10天亩用生石灰50kg干法清塘,彻底杀死野杂鱼和敌害生物。(2)肥水。清塘后在虾苗下地前7天往水0.5米,亩泼施腐熟鸡粪150kg,一次施足,以后未再追施。(3)设置隐蔽物。先在池四周放置若干杨树枝作为临时隐
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