中国大陆广西壮族自治区玉林市博白县的邮政编码是 537600 。

The postcode of Bobai County, Yulin City, Guangxi Zhuang Autonomous Region, China is 537600.

论文题目：优质稻新技术推广的实证研究——广西博白县凤山镇案例分析；

Title of the thesis: Empirical Studies on the Extension of New Technology in Quality Rice — A case study from Fengshan town, Bobai County, Guangxi Zhuang Autonomous Region;