测墒灌溉条件下冬小麦节水试验

Water Saving Experiment of Winter Wheat under Soil Moisture Measurement Irrigation

摘要: 水是生物生存之源，是农林业生产发展的必要条件。我国的传统灌溉方式仍然以漫灌为主，水分浪费严重，也加剧了地表径流的水质污染导致水体富营养化、地下水污染、农产品品质下降等一系列危害。本试验从节水的角度出发，根据小麦关键生育时期的需水特点，设定关键生育时期的目标土壤相对含水量。研究表明：W75的水分利用率高于常规灌溉，产量差别不大，节水效果较好。

Abstract: Water is the source of biological survival and the necessary condition for the development of ag-ricultural and forestry production. The traditional irrigation method in China is still dominated by flood irrigation, which leads to serious water waste, and also intensifies the water pollution of surface runoff, resulting in a series of hazards, such as water eutrophication, groundwater pollution, decline in the quality of agricultural products and so on. From the perspective of water saving, this experiment sets the target soil relative water content in the key growth period according to the water demand characteristics of wheat in the key growth period. The research shows that W75 has higher water use efficiency than conventional irrigation, little difference in yield, and better water-saving effect.