In order to understand the yield performance and nitrogen (N) response of hybrid rice under different ecological conditions in southern China. field experiments were conducted in Huaiji County of Guangdong Province. Binyang of Guangxi Zhuang Autonomous Region and Changsha City of Hunan Province. southern China in 2011 and 2012. https://emporiumsmokeshopstles.shop/product-category/posters/