Objective] To research the physiological water consumption of rice in tillering stage, and to save irrigation water resources more effectively.[ Method] Indoor potted method was used for water control irrigation of rice.According to the weight changes of each test pot in each day, physiological water consumption of rice was analyzed.[ Result] Water consumption in early tillering stage of rive increased gradual-ly, and then reduced in late tillering stage.The average daily water consumption per day of rice was 193.75 g in early tillering stage, and that was 260.92 g in late tillering stage.The water consumption per plant of two plants per pot was 33.4% higher than that of one plant per pot. [Conclusion] Water irrigation should be controlled in late tillering stage of rice. Dense planting rice leads to small water physiological water consumption in tillering stage; and the tiller number reduced correspondingly.
万方数据