Abstract: The United States is a major rice exporter, with scientific research capabilities and production levels among the top in the world. The paper focuses on the situation of scientific research and production of rice in the United States, especially in Louisiana, in order to provide some references and guidance for China. The area of rice in Louisiana ranks, the third in the United States, was 172 000 hm2. The types of cultivated rice are long grain rice, medium grain rice and specialty rice, long grain rice occupied for 89% of the area. The yield of rice is 7.15 t/hm2, and the production is 1 197 800 t in 2019. Cultivation techniques are advanced, clear-field technology and mechanized planting technology are popularized in Louisiana. High - throughput molecular marker - assisted selection technology has been applied to rice research deeply.

Key words: America, Louisiana , rice production

摘要： 美国是水稻出口大国，水稻科研能力与生产水平位居世界前列。本文对美国特别是路易斯安那州的水稻生产和科研情况进行考察，目的是为了给国内水稻科研与生产提供参考及借鉴。路易斯安那州水稻种植面积在美国位居第3，达到17.20万hm2，种植的水稻类型分为长粒稻、中粒稻及特种稻，其中，长粒稻的种植面积最大，占89%；2019年水稻单产为7.15 t/hm2，总产达到119.78万t，总售价 3.09亿美元。栽培管理技术先进，广泛使用洁田技术和机械化种植技术。高通量的分子标记辅助选择技术深度应用到水稻育种工作中。

关键词: 美国, 路易斯安那州, 水稻生产