This method could fully utilise the productivity of the prawn pond, reduce the feed cost, postpone the "aging" of the prawn ponds and increase the ecological benefits.
这样，可以充分利用养虾池自身的生产力，降低饲料成本，推退虾池“老化”进程，提高生态效益。
The present invention can improve the ecological environment of aquiculture pond obviously.
使用本发明方法，可显著改善池塘养殖生态环境。
Three typos of model pond ecosystems have been designed and used to assess ecological effects of insecticide based on ecosystem level.
报道了三种模型池塘生态系统即池塘微宇宙、池塘中宇宙和模型水陆生态系统的设计、组建与应用研究结果。
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