增库促源栽培途径与增穗保叶栽培技术是从群体库源关系若干规律中概括出的一种高产栽培技术,并已在大面积玉米高产开发中经受了检验,取得了成功.这项技术具有较广的适应性,无论是高产地区还是低产地区,都可根据这些原则去改变过去的种植习惯达到高产. The method of increasing the library to cultivate the source and the technology of increasing the leaf to protect the leaves is a kind of high-yielding cultivation technique which is summarized from some laws of the population source relation and has been tested in the large-area corn high yield development and achieved success. Technology has a wide range of adaptability, both high-yield areas and low-yield areas, can be based on these principles to change the past planting habits to achieve high yield.