论文部分内容阅读
要在双季稻田里养好鱼,关键是如何搞好鱼类的安全越夏,通常在早稻收割后,田间裸露,中午时田水温度可高达40℃以上,田鱼容易死亡。据测定,当气温高于32℃时,3寸深的水温达40℃,而稻田养殖的几种主要鱼类,生活最高温度都是在35℃以下,因此,要控制水温过高才能防止死鱼。目前,各地在实践中创造了许多有效的办法,现介绍如下:
To raise fish in double cropping paddy, the key is how to improve the safety of fish in summer. Usually after the early rice is harvested, the field is exposed. At noon, the temperature of field water can reach as high as above 40 ℃, and the field fish can die easily. It is determined that when the temperature is higher than 32 ℃, 3-inch deep water temperature of 40 ℃, and several major types of fish farming in paddy fields, the maximum living temperature is below 35 ℃, therefore, to control the water temperature is too high to prevent death fish. At present, many effective ways have been created in practice in various places and are as follows: