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珊珀湖是一个半封闭式的老年湖珀,现有养殖水面2万亩,水深1.8—3.0米,泥质为黄灰黑色,PH值7.9—8.2,属中等营养型湖珀。该湖1957年开始养鱼,1959年起水鲜鱼400吨,以后,田湖分家,大量外源性饵肥直接从低水渠道排入外河,使鲜鱼产量下降,亩产长期徘徊在12.5公斤左右。1984年总产鲜鱼175吨,单产8.75公斤/亩。1985年7月,我们对大湖说明:鳙鱼占总重量43.73％,占总尾数48.3％;鲢鱼占总重量23.4％,占总尾数24.8％。进行了施肥投饵精养试验。一次性施尿素40吨,亩平2公斤,施磷肥90吨,亩平4.5公斤。投菜饼22.5吨,酒糟50吨,全年共起水鲜鱼350吨,亩平17.5公斤。
Shan Lake is a semi-enclosed old Lake Perot, the existing breeding surface of 20000 acres, 1.8-3.0 meters deep, muddy yellowish-gray, PH value of 7.9-8.2, is a moderate nutrition lake. The lake started fish farming in 1957 and started to produce 400 tons of fresh fish since 1959. Since then, many fields of exogenous bait have been discharged from the low-water channel into the river, resulting in a drop in the production of fresh fish and a prolonged wandering of mu production About 12.5 kg. Total production of fresh fish in 1984 175 tons, yield 8.75 kg / mu. July 1985, we explain to the Great Lakes: catfish accounted for 43.73% of the total weight, accounting for 48.3% of the total; Silver carp accounted for 23.4% of the total weight, accounting for 24.8% of the total mantissa. The fertilization feeding bait test. Disposable urea 40 tons, mu flat 2 kg, 90 tons of phosphate fertilizer, mu flat 4.5 kg. Cast vegetables cake 22.5 tons, distiller’s grains 50 tons, a total of 350 tons of fresh fish throughout the year, mu flat 17.5 kg.