后季稻由于播种栽插过晚,抽穗延迟,容易遇到秋季低温,造成空壳不实而减产;如播种栽插过早,抽穗过分提早,又会使营养生长期不足,形成穗小而减产。因每年气候变化不同,使播栽期不易掌握。本文用统计分析方法,提出了后季稻不同品种生育期的温光公式。应用此公式可以分析多年气候资料,从而,得到后季稻不同品种的安全播栽期。 After the late rice planting sowing too late, delayed heading, easy to meet the autumn low temperature, resulting in false shell and reduce production; such as planting planted too early, too early heading, it will make the vegetative growth period, the formation of small spike Cut Due to the different annual climate change, the sowing date is not easy to grasp. In this paper, using statistical methods, the temperature and light formula of different varieties of later season rice are proposed. This formula can be used to analyze climate data for many years, so as to obtain safe planting date for different varieties of later season rice.