引黄灌区水稻栽培历史悠久,农民在长期的生产实践中,积累了丰富的灌溉经验。解放以来,随着水稻面积的不断发展,稻田灌溉技术又有了进一步提高。如应用“浅～深～浅”的灌溉方法,结合群众“青秧、扎稗、晒田”的经验,以及盐碱地“勤灌勤排”的灌排技术,一般较深水淹灌增产5％左右,节省水量达25～55%。灌溉排水不仅是滿足水稻生长发育对水分的需要,而且有洗盐、调节温度、促进与控制水稻生育,抑制杂草等多方面的作用。所以在水稻生长期中,虽然在大部分时间內需要保持淹灌水层,但在一定阶段也需要排水落干。“浅～深～浅”的灌溉方法,不仅适应引黄灌区昼夜温差大、水田杂草多、土壤盐分重等自然条件,和直播栽培的特 Rice cultivation in the Yellow River Irrigation Area has a long history of cultivation. Farmers have accumulated rich experience in irrigation in long-term production practices. Since the liberation, with the continuous development of rice area, rice irrigation technology has been further improved. For example, the application of “shallow to deep to shallow” irrigation methods combined with the experience of the masses such as “Qingyang, Zhayao, Shatian” and the irrigation and drainage technologies of “diligent irrigation and drainage” in saline-alkali land generally increase the yield by about 5% , Save water up to 25 ~ 55%. Irrigation drainage is not only to meet the needs of rice growth and development of water, but also salt washing, temperature regulation, promote and control of rice growth, weeds and other aspects of the role. Therefore, during the rice growing season, although it is necessary to keep the aquifer under flooding most of the time, drainage and drying are also required at a certain stage. “Shallow ~ deep ~ shallow” irrigation methods, not only to adapt to the Yellow River Irrigation District, a large temperature difference between day and night, more paddy fields, soil salinity and other natural conditions, and direct seeding cultivation of special