豫南稻区水稻节水灌溉方式研究

Study on the water-saving irrigation of rice in the south of Henan

采用4种灌溉方式对水稻节水进行了研究,提出了水稻的最佳灌溉方式;水稻的灌水高峰是水稻孕穗-抽穗期;灌水量与灌溉生长效率呈负相关。

The effect of four kinds of irrigated methods on the water-saving of rice were studied. The optimum irrigated method was the spring irrigation. The largest amount water was irrigated from the spike formation stage to the heading period. The relation between growth rate of the rice and the amount of irrigation water was negative .