水稻浅湿间歇灌溉适宜间歇天数的试验研究

Experimental Research on Suitable Intermittent Days in Intermittent Irrigation System in Paddy Rice

通过对水稻浅湿间歇灌溉适宜间歇天数的试验研究 ,得出水稻分蘖期、拔节孕穗期、抽穗开花期和成熟期的适宜间歇天数分别为 6～ 8d、2～ 4 d、3～ 6 d和 3～ 6 d,综合节水率为 1 8.2 % ,增产率为 1 0 .1 %。这一成果对水稻浅湿间歇灌溉节水技术的推广应用具有重要价值。

The experimental results indicate that suitable intermittent days are 6～8 days, 2～4 days, and 3～6 days for tillering stage, elongating to earring, and earring to maturation respectively in paddy rice. Comparing with traditional water management system, irrigation water reduces 18.2% and yield raises 10.1% under the new intermittent irrigation system.