寒地水稻覆膜灌溉耗水规律及水分生产效率试验研究

Experiment on Regulation of Water Consumption and Water Use Efficiency of Film Irrigation Rice in Cold Region

在黑龙江水稻灌溉试验中心进行水稻覆膜灌溉试验,研究了不同灌溉模式下,覆膜对水稻耗水量及水分生产效率的影响。结果表明,覆膜淹灌处理水稻耗水量比常规淹灌减少7.35%,覆膜控灌耗水量比常规控灌减少3.77%,覆膜间歇灌溉耗水量比常规间歇灌溉减少10.00%;覆膜淹灌处理水分生产效率较之常规淹灌提高32.45%,覆膜控灌处理水分生产效率较之常规控灌处理提高14.62%,覆膜间歇灌溉处理水分生产效率较之常规间歇灌溉处理水分生产效率提高13.59%。

Effects of different film irrigation modes on rice consumption and water use efficiency was studied at GGSY. The results shows that, water consumption of film flood irrigation is less 7.35% than of flood irrigation, water consumption of film control irrigation is less 3.77% than of control irrigation, wa- ter consumption of film intermittent irrigation is less 10.00 % than of intermittent irrigation;water use efficiency of film flood irrigation is higher 32.45% than of flood irrigation, water use efficiency of film control irrigation is higher 14.62% than of control irrigation, water use efficiency of film intermittent irrigation is higher 13.59 % than of intermittent irrigation.