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一、池塘条件:①底质以砂底为好,放养前应清除淤泥,进行整墙;②池水较浅。一般在6—8月水深在80—100cm即可,一是利于提高水温;二是透光层相对较大,有利于水草光合作用释放氧气;三是水压小有利于沼虾的呼吸运动。9—10月,则应加深水,以控制温度,防止水温突然大幅度变化;③池底要种植一些水草,如轮叶黑藻,有利于罗氏沼虾摄食、栖息和逃避敌害。经验表明,按行距7m,棵距1m,每棵3—4株种植轮叶黑藻,
First, the pond conditions: ① bottom of the sand as well, should be cleared before stocking silt, the entire wall; ② shallow water. Generally 6-8 months in the depth of 80-100cm can be, one is conducive to raising the water temperature; the second is relatively large light-transmissive layer is conducive to photosynthesis of aquatic plants to release oxygen; Third, the water pressure is conducive to the respiratory movement of marsh shrimp. From September to October, water should be deepened to control the temperature so as to prevent the water temperature from suddenly and dramatically changing. (3) Water plants, such as Hydrilla verticillata, are planted at the bottom of the pond to facilitate the feeding, habitat and evade predation of Macrobrachium rosenbergii. Experience shows that, according to row spacing 7m, 1m away from the tree, each 3-4 planted Hydrilla verticillata,