稻田养鱼在我国已有悠久的历史,但有关其工程设计,才被提到议事日程上来。设计方案如下: 一、稻田孵化鱼苗的工程设计目前稻田孵化鱼苗,并未专辟有孵化池,一般大多用秧田作为孵化场地(待早稻秧拨除后作为孵化场地)。 1、秧田改为孵化池的要求 (1) 水质要清新,排注水方便。 (2) 泥脚要浅(最好是砂质壤度的秧田),田泥要平。 (3) 不受敌害和家禽干扰。 2、工程要求 (1) 将秧田的围堤加高加宽(高出泥面1尺,宽5寸),要做到不倒堤、不漏水为度,并能保持水 Paddy fish farming in our country has a long history, but its engineering design, was mentioned on the agenda. Design plans are as follows: First, the engineering design hatchery fry paddy current hatchling fry, did not devise hatch pool, most commonly used as hatching field seedling (to be planted early rice seedling as hatchery). 1, seedling hatch into the pool requirements (1) the water quality should be fresh, easy to pour water. (2) muddy feet should be shallow (preferably sandy soil seedling), Tian mud to be flat. (3) from predators and poultry interference. 2, the project requirements (1) the embankment of the seedling heightening widened (1-foot above the mud surface, 5-inch wide), to do not back dike, watertight degree, and to maintain water