检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:张新民 乔福洲 陈德福[2] 郑伟力 孔祥忠 陈耀亮[2] 时丽萍[2]
机构地区:[1]济宁市水产局,272019 [2]济宁市任城区水产局,272000
出 处:《齐鲁渔业》2001年第2期29-31,共3页Shandong Fisheries
摘 要:池塘面积1067m2,主养彭泽鲫鱼种,搭配团头鲂及链镛鱼种,经 156天饲养,共产鱼 1029. 6kg,折合667m2产鱼 643.5kg。其中每667m2产彭泽鲫鱼种 367.8kg,平均规格70g。每 667m2利润3498元。投入产出比为1:1.67。In the pond of 1067m2,Pengze cru- cian carp fingerlings were cultured as the major species, the minor species were Wuchang bream (Megalobrama amblycephala Yih),silver carp (Hy- pophthalmichthys molitrix (Cuvier et Valenciennes )) and bighead carp (Aristichthys no- bilis (Richardson)). After 156 days of culturing, the total yield of fish was 1029. 6 kg(643. 5 kg per 667 m2). The yield of Pengze crucian carp fingerling was 367. 8 kg per 667 m2, the average weight was 70 g,profit was 3 498 yuan(RMB)per 667 m2, the input-output ratio was 1: 1. 67.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:18.218.145.54