盱眙县2013年水稻高温热害发生情况及防控技术

Occurrence and Prevention-control Technology about Rice Heat Injury in 2013 in Xuyi

盱眙县水稻高温热害的发生,主要是造成结实率下降,导致减产。结实率高低与温度、大气湿度、品种、抽穗时间、田间水分状况有关。通过合理选用抗(耐)性品种、"籼改粳"、因种调整播期,合理安排抽穗期,在高温来临前,及时采取灌水等措施,可避免或减轻灾害损失。

Rice heat injury in Xuyi caused decline of setting percentage and reduction of yield. The setting percentage was related to temperature, atmospheric moisture, heading period and water. It can avert or ameliorate rice heat injury by using resistance varietie, switch japonica, adjusting rice-planting date and irrigating promptly before the heat injury。