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鱼种池种稻育种,就是利用阳光和池底淤泥的养分来制造大量的有机物,然后用这些有机物作为鱼类的饲料和肥料,再转化为鲜鱼肉。推广鱼种池种稻育种技术,能增加鱼种产量,减少投入,降低成本,提高效益。1990年,国营益阳县来仪湖渔场21户育种户利用150亩鱼种池种稻育种,共出池鱼种45.3吨,亩均302公斤;另产食用鱼7.56吨、稻谷45吨,总产值达到24.56万元,亩均产值1637元,减物化成本,获纯收入21.07万元,亩均纯收入1405元。该场利用鱼种池种稻育种效益高的主要经验是: 一、排干池水,围块育秧,适时插秧。上年鱼种全部出池后,育种户将池水排干,平整池底,并围出一定面积作为秧
Fish species pool Rice breeding, is the use of sunshine and pool bottom of the nutrients to create a large number of organic matter, and then use these organisms as fish feed and fertilizer, and then converted into fresh fish. Promote fish breeding ponds Rice breeding technology, can increase fish production, reduce investment, reduce costs and improve efficiency. In 1990, 21 breeding breeders from Yiyi Lake Fishery Farm in State Yiyang County used 150 mu of fish ponds to breed rice breeds, with a total of 45.3 tons of pond fish species and an average of 302 kg of mu per mu; the other production fish 7.56 tons and 45 tons of paddy rice, Reached 245600 yuan, the average output value of 1637 yuan per mu, less materialized costs, net income of 21.07 million, net income per capita of 1405 yuan. The use of fish species in the field of rice breeding high efficiency of the main experience is: First, drain the water, block nursery seedlings, timely transplanting. After all the fish species were discharged from the pool last year, the breeding households drained the pond water and formed a pond with a certain area as a seedling