建国以来兴建了大量水库工程,多数水库的放水设备采用底层输水的形式。水库蓄水深度超过20米,底层的水温是很低的,一般在10℃以下,南山水库蓄水深近60米,底层水的温度在8℃左右,这样的水灌入农田对水稻生长有一定影响。为了探求低温水对水稻的影响关系和探索非工程措施的改善方法,我们试验站于1983年起,连续开展了试验研究,并获得一定成果。现把低温水灌溉对水稻的生长影响与改善低温水灌溉的方法介绍如下:一、低温水灌溉对水稻的影响1.影响范围。低温水入田后,不论田间原来有水层或无水层,低温水影响范围在 Since the founding of the PRC, a large number of reservoir projects have been constructed and most of the water discharge facilities of reservoirs adopt the form of bottom water conveyance. Reservoir water depth of more than 20 meters, the bottom of the water temperature is very low, generally below 10 ℃, Nanshan Reservoir water depth of nearly 60 meters, the bottom water temperature is about 8 ℃, so water into the farmland of rice growth Certainly affected. In order to explore the impact of low-temperature water on rice and to explore non-engineering measures to improve the method, our pilot station in 1983, continuous pilot study and achieved some results. Now the impact of low-temperature water irrigation on the growth of rice and improve the low-temperature water irrigation methods are as follows: First, low-temperature water irrigation on rice 1. Affect the scope. Low-temperature water into the field, regardless of the field had the original water or no water layer, low-temperature water in the affected area