我们于1985～1986年在全市进行了千亩池塘亩产500公斤鱼的高产试验。试验鱼池198只,计1522.7亩,其中新挖鱼塘446.9宙,占29.4％;老养鱼基地606.9亩,占39.9％;自然坑塘和废窑坑468.9亩,占30.8％;最大的塘口60亩,最小的4亩。搞大面积的高产试验,涉及面广, We conducted a high-yield trial of 500 kilograms of fish per mu of ponds in the city from 1985 to 1986. There are 198 fish ponds with a total area of ​​1522.7 mu, of which 446.9 are new fish ponds, accounting for 29.4% of the total; 606.9 mu of old fish farms, accounting for 39.9%; 468.9 mu of natural pit ponds and waste kilns, accounting for 30.8% of the total; 60 acres, the smallest 4 acres. Engage in large-scale high-yield test, involving a wide range,