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热量是影响水稻生长发育和产量形成的主要因子。本文用热量条件分析云南省水稻安全栽培的上限高度。首先求得不同高度上的热特征量,然后与水稻常规品种所需要的热量作比较,从而划分水稻安全栽培高度的垂直带并进行初步分析。
Heat is the main factor that affects the growth and yield of rice. In this paper, the upper limit height of rice safety cultivation in Yunnan Province was analyzed with heat condition. Firstly, the thermal characteristics at different altitudes are obtained and then compared with the calories required by the conventional rice varieties to classify the vertical bands of safe cultivation altitude and conduct preliminary analysis.