桂平市晚稻生育期农业气象分析

Analysis of agrometeorological conditions during growth of late rice

桂平市晚稻生育期具有气温由高变低、光照由长变短、降水量由多变少、后期温度变化大、低温出现频繁等气象特点。文章分析了桂平市晚稻不同生育期的农业气象条件,指出影响晚稻产量的主要气象因素有寒露风、气温、光照、干旱等,提出应根据桂平市晚稻生育期农业气象条件和晚稻产量影响因素做好农事安排、良种选育、加强后期田间管理等生产措施,以提高桂平市晚稻产量。

The present study has been carried out in Guiping City of Guangxi, China. During growth of late rice, the temperature changes from high to low and illumination time changes from long to short with less and less precipitation. The late growth period is characterized by large temperature shifts and frequent appearance of low temperature. The present pa- per analyzes agrometeorological conditions during different growth periods, of late rice in Gulping City. It was found that the main meteorological factors that affect the late rice yield in Guiping City are cold wind, temperature, illumination and drought. In order to increase the late rice yield in Guiping City, some cultivation measures should be adopted according to the meteorological conditions, viz., management of cuhural practices, breeding quality seeds and strengthening field man- agement during late growth period.