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我国商品饲料目前紧缺价格又高,群众性的养鱼生产有的地方还存在一定困难,这里介绍两种节粮型鱼种培育法。1 鱼萍混养法 此法适用于以草鱼为主的鱼种池。做法是清塘后注水1米深,夏花放养前10～15天施足基肥。每公顷施有机肥1500公斤左右,遍洒或分堆在池塘四周浅水中均可。施肥5～7天后,用密网扦捕池中的敌害生物,再放养芜萍种子每公顷300～450公斤。如果池塘面积大,将芜萍种子洒在用草绳
At present, the shortage of commodity feed in our country is very high in price. There are still some difficulties in the mass production of fish in some places. Two kinds of cultivation-oriented fish cultivation methods are introduced here. 1 fish Ping polyculture law This method applies to fish grass-based fish pond. The practice is to clear the pond after the injection of 1 m deep, summer flower stocking 10 to 15 days before the foot-based fertilizer. Application of organic fertilizer per hectare 1500 kg, spread over or submerged in shallow water around the pond can be. After 5 to 7 days of fertilization, the harmful enemy organisms in the trap pool are collected and the Wuhu Ping seeds are stocked at 300 to 450 kg per hectare. If the pond area is large, sprinkle Wu Ping seeds with grass rope