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高水哑河,其特点:以水保农田灌溉为主的蓄水水域。水质清淡深绿,水草少,水源靠机械和河水灌注,历年来养鱼产量低,费用开支大,经济效益差。 1987年为了开发哑河渔业资源,我们在长兴河进行了投施化肥的试验,并取得了明显的效果。长兴河系我场一个典型的高水河,面积150亩,水深在1.5米至2.5米之间,河、田相距较远,河底土呈泥灰色,pH值为0.9左右,浮游生物和底栖生物少,水质清瘦,投肥前,年鱼产量在4000公斤左右,单产仅26.7公斤。 1987年采取放足鱼种,投施化肥,进
High moutheme, its characteristics: Irrigated farmland water-based storage waters. Delicate dark green water, less water, water and water by mechanical irrigation, over the years the production of fish, low cost, large cost, poor economic efficiency. In 1987, in order to develop the resources of Muan River fishery, we carried out the experiment of fertilizing fertilizer in Changxing River and achieved remarkable results. Changxing River is a typical high water river in our field with an area of 150 mu. The water depth is between 1.5m and 2.5m. The rivers and fields are far apart. The riverbed is muddy gray with a pH value of about 0.9. Plankton and benthos Less biological, thin water quality, fertilization before the annual fish production in 4000 kg, yield of only 26.7 kg. In 1987 to take the release of fish species, fertilizer, into