右江河谷盆地,地处低纬(23-24°N),属南亚热带。热量丰富,光照充足,对双季稻生产很有利,是百色地区双季稻的主要产区。历年种植面积二十六万亩上下,占全地区双季稻面积的40％。单产早稻高于晚稻,近年来早稻平均亩产800斤左右,比晚稻高200多斤。早稻产量的高低对全年粮食产量是举足轻重的。也就是说,抓好早稻生产是抓好粮食生产的关键。 Youjiang valley basin, is located at low latitudes (23-24 ° N), is a subtropical. Rich in calories, adequate light, double crop rice production is very favorable, Baise is the main producing areas of double cropping rice. Over the calendar year planted area of ​​260,000 mu, accounting for 40% of the region’s double cropping rice. The yield of early rice is higher than that of late rice, and the average yield of early rice in recent years is about 800 kg, 200 kilos more than that of late rice. The level of early rice production is very important for the annual grain output. In other words, a good grasp of early rice production is the key to good grain production.