摘要
为解决传统的稻田稻虾轮作克氏原螯虾(Procambarus clarkii)养殖模式中存在的虾苗在规格、数量、质量上参差不齐,苗种间相互残杀死亡率极高,同时成虾上市时间晚、规格小、上市不集中、价格低等问题,通过改造新型田间工程和种养管理方法,提出一种克氏原螯虾稻虾轮作新模式,并与稻虾轮作传统模式比较。试验结果表明:稻虾轮作新模式平均单产小龙虾2010 kg/hm^2,单位产值106530元/hm^2;稻虾轮作传统模式平均单产小龙虾约1605 kg/hm^2,单位产值60990元/hm^2。稻虾轮作新模式单位产量和单位产值较稻虾轮作传统模式分别提高了25.2%和74.67%,经济效益提高显著。
In order to solve the problems existed in the traditional paddy rice field prawn-rice rotation aquaculture model for Procambarus clarkii such as:seedlings uneven in size,quantity and quality,high mortality by fighting against each other among the seedlings,and late unfocused market time,small size,low price for commercial shrimp,etc,a new rotation model was proposed by transforming field engineering and breeding management methods,and compared with the traditional rotation model.The results showed that the new rotation model produced an average of Procambarus clarkii 2010 kg/hm 2,with an output value RMB 106530/hm 2,while the traditional model produced an average of Procambarus clarkii 1605 kg/hm 2,with an output value RMB 60990/hm 2.The new model increased 25.2%in yield and 74.67%in output value compared with the traditional model.The economic benefit improved significantly.
作者
黄志峰
倪国彬
HUANG Zhi-feng;NI Guo-bin(Chongming District Vegetable Science and Technology Promotion Station,Shanghai 200215,China;Chongming Fisheries Technical Extension Station,Shanghai 202150,China)
