玉米的生育特性适宜山地种植。粤西山区农民素有种植玉米的习惯。但长期以来,老、劣种当家,亩产一般只有50多公斤。目前广东对玉米研究尚少,杂交优势还未很好利用,品种和栽培技术没有得到改良,导致玉米生产发展缓慢。为了开创我省玉米杂交优势利用新局面,改变玉米生产落后状况,近年来我们吸取 The reproductive characteristics of corn suitable for mountain cultivation. The farmers in western mountainous area of ​​Guangdong are always accustomed to planting corn. However, for a long time, the old and the poor are the only ones who produce only about 50 kilograms per mu. At present, there are still few studies on maize in Guangdong, and the hybrid advantages have not been well utilized yet. The varieties and cultivation techniques have not been improved, resulting in the slow development of maize production. In order to create the advantage of hybridization utilization of corn in our province and change the backward production of corn, in recent years we have absorbed