井水水温低,为了防止低水温对水稻生长发育造成的危害,人们采用好多措施,我认为,坚持死水灌溉是关键措施。死水灌溉就是井水流入稻池内不再外流,严防各稻池之间串灌。这种作法使井水很快增温。例:1988年7月12日13点灌井水,15点29分停灌,当时水温为24℃,气温为30℃,未灌井水的池水温为33℃;16点49分测定,上述 Well water temperature is low, in order to prevent low water temperature on rice growth and development caused harm, people take many measures, I think, stick to dead-water irrigation is the key measure. Backwater irrigation is well water into the pond no longer outflows, to prevent the string between the rice irrigation. This practice causes well water to warm rapidly. Example: July 13, 1988 at 13 o’clock well irrigation, stop irrigation at 15:29, when the water temperature was 24 ℃, the temperature was 30 ℃, the temperature of the pond water was 33 ℃; measured at 16:49, the above