知识讲座［编者按］：为普及大豆科学知识，提高广大生产者的科学种田水平，本刊从这期开辟“知识讲座”栏。拟每期讲一个专题，全年讲六个专题。即：大豆品种资源、大豆育种、大豆栽培、大豆病虫害防治、大豆生理、大豆生物工程等。每期讲座安排两个版面。由于受到字数的... Lectures on knowledge [Editor’s note]: In order to popularize the knowledge of soybean science and raise the scientific farming level of the vast number of producers, this journal opens the column of “knowledge lectures” from this issue. We plan to talk about one topic every year and six topics throughout the year. Namely: soybean varieties, soybean breeding, soybean cultivation, soybean pest control, soybean physiology, soybean bioengineering. Each seminar arrange two layouts. Due to the number of words ...