| Effects of aerobic irrigation on the rice growth were conducted in the experimental station of China National Rice Research Institute under system of rice intensification.The result showed that: it saved water by 1.4%,12.4%,9.0% and 11.2% at returning green stage,tillering stage,booting stage and heading stage respectively,and the water use efficiency was 0.93 kg/m3,34.2% higher than that of the control;soil redox potential(Eh) changed circularly and advanced after drying 4 to 5 days,and rewatering 4 to 5 days;and the conditions of soil aerating and root activity were improved,furthermore,it promoted big panicle,and increased the grain yield of rice by 6.9%. |