查哈阳灌区水稻节水控制灌溉技术应用研究与实践

Application,Research and Practice of Rice Water-saving Irrigation Control Technology in Chahayang Irrigation Area

水稻控制灌溉技术是指稻苗秧苗本田移栽后,田面保持薄水层（10~30mm）返青活苗,在返青后的各个生育阶段,灌水后田面不再保留水层,以根层土壤水分作为控制指标,确定灌水时间和灌水定额。发展水稻节水控制灌溉技术,是缓解水资源供需矛盾的途径之一。齐齐哈尔管理局查哈阳农场水稻节水控制灌溉试验结果显示,合理的土壤水分控制,能较充分地发挥水稻生长的补偿效应,达到节水高产的目的。

Rice irrigation control technology refers to keep the thin water layer（ 10 ~ 30mm） revive green and live seeds after rice seeding is transplanted from the original field,there no water layer kept after irrigation during various growth periods,taking root soil moisture as the control index to determine the irrigation time and irrigation quota. To development the rice water saving irrigation control technology is one of the ways to alleviate the contradiction between supply and demand for water resources. The results of rice water-saving irrigation test conducted in Chahayang farm shows that reasonable soil moisture control can play fully the roles of compensation effect of rice growth and achieve the purpose of water saving and high yield.