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早稻生长前期,气温偏低,如果这时用低温水灌溉,会造成迟发,推迟成熟。近两年来,我们通过试验观测证明,早稻生育期间用塘水灌溉比用水库水溉灌,返青抽穗显著提早,增产11.9％。由此可见,从水源着手。提高灌溉水温,是当前农田灌溉管理工作中的一个应当引起重视的问题。
Early rice growth, the temperature is low, if this time with low temperature water irrigation, will result in delayed, delayed maturity. In the past two years, we have proved through experiment and observation that during the growth period of early rice, irrigation with pond water is faster than irrigated irrigation with reservoir water, heading back significantly faster and yielding 11.9%. This shows that starting from the water. Increasing irrigation water temperature is one of the most important issues in farmland irrigation management.