论文部分内容阅读
据《农村百事通》介绍:新建的水泥池要经过脱碱处理后才可用来养蟹。因新池碱性较大,河蟹往往难适应而成批死亡。幼蟹也极力逃逸。水泥池的脱碱方法有以下两种:(1)中和法:加满池水,每立方米水加过磷酸钙1公斤或酸性磷酸钠20—30克,让其充分溶解,每天用冰棍搅拌水起漩涡2—3次,每次5分钟,浸泡3天以后将水放掉,水泥池即
According to “Know-all” introduction: The new cement pool to go through alkaline treatment can be used to crab. Due to the new pool of alkaline, crabs are often difficult to adapt to and die in batches. Crab also tried to escape. Cement pool dealkalization method has the following two kinds: (1) Neutralization method: full of water, add 1 kg of calcium perphosphate water or 20-30 grams of acidic sodium phosphate per cubic meter of water, let it fully dissolved, stirring with a popsicle every day Water swirling 2-3 times, each 5 minutes, 3 days after the water will be let go, the concrete pool that