The breeding procedure and yielding p erform ance and characters of soybean Changnong 9 was reported. The suitable plantin g area and main culturing technique of Changnong 9 was discussed.

• 概述了大豆新品种“长农9号”的选育过程、产量表现及特征特性，阐明了其适应区域和主要栽培技术，为“长农9号”在生产上推广应用提供了重要依据。