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大面积鱼池混养特种水产品比单纯养鱼提高效益1.5—3倍。现将其主要技术介绍如下: 池塘条件。利用低洼农田、荒地、湖泊浅滩,挖沟筑堤,面积在5—40ha之间,沟的面积占总面积的15％—20％,沟深1.5—2m,滩面可提水0.8—1.2m。要求靠近水源,水质良好,水量充足,并备水泵提水。 放鱼前的准备。冬季抽干池水,挖去过多的淤泥,让阳光暴晒池底数日至半月,按沟的面积用生石灰2250kg/ha,在沟中均匀泼洒,以杀灭细菌、寄生虫和螯虾等病(敌)害。然后将沟水加满,在沟中移植占沟总面积1/3—1/2的水草和水花生等水生植物。修筑好进排水涵闸,并用水泥板、石棉瓦、矿石瓦等材料建好防逃墙,防逃墙土上部分高50—70cm,土下部分15—25cm。
Large area fish pond polyculture special aquatic products to improve the efficiency of fish than pure 1.5-3 times. Now the main technical introduction is as follows: pond conditions. The use of low-lying farmland, wasteland, lakes and shoals, ditching and ditching, with an area of 5-40ha, the ditch area accounts for 15% -20% of the total area, furrow 1.5-2m, the beach can raise water 0.8-1.2m . Requirements close to the water, good water quality, adequate water, and prepare pumps for water. Preparing for fish Drainage of winter water pool, dredging too much mud, so that the sun sunburn pool at the end of a few days to half a month, according to the area of ?? the ditch with lime 2250kg / ha, evenly sprinkle in the ditch to kill bacteria, parasites and crayfish and other diseases Enemy) harm. Then fill the ditch water, transplanting ditch in the total area of 1 / 3-1 / 2 aquatic plants such as aquatic plants and peanuts. To build a drainage culvert floodgate, and with cement board, asbestos, ore and other materials built anti-evasion walls, anti-evasion wall soil part of the high 50-70cm, soil part of the 15-25cm.