论文部分内容阅读
一是注意坑塘整修改造。近年来,因多方面的原因,农村养鱼坑塘塌陷、淤积十分严重,已严重影响了渔业产量及效益的提高。因此,加强对坑塘的整修改造已成当务之急。坑塘整修改造应视具体情况有针对性地进行。经整修改造,要求面积达到0.2～0.67公顷,水深1.5～2.5米,并尽量改善水源条件,扩大饵肥来源。在坑塘整修后,每公顷用生石灰750～1125kg干塘或用漂白粉202.5kg带水(水深1米)消毒。杀灭有害病菌,改善坑塘环境。
First, pay attention to pit renovation pond renovation. In recent years, due to many reasons, the collapse of ponds for fish farming in rural areas has caused serious siltation, which has seriously affected fishery production and efficiency. Therefore, to strengthen the renovation pit pit has become a top priority. Keng pond renovation should be carried out as the case may be targeted. After renovation and renovation, the required area of 0.2 ~ 0.67 hectares, water depth of 1.5 to 2.5 meters, and try to improve the water conditions, to expand the source of bait. After renovating the pit ponds, 750-1,125 kg dry ponds of quicklime per hectare or 202.5 kg of bleached water (1 meter depth) should be sterilized. Kill harmful bacteria, improve pit environment.