我社灯塔大队地处海拔880米的山区,从1976年以来,连续三年玉米亩产都在900斤以上,今年535亩玉米,平均亩产997斤。他们除了采用恩单2号玉米良种外,还抓了以下技术环节。一、以早播为主的有关措施恩单2号在灯塔大队生育期145—150天,全部与马铃薯、油菜和小麦套作。虽然其播种期因茬口不同而 Our lighthouse brigade is located in the mountainous area of ​​880 meters above sea level. Since 1976, the yield of corn has been above 900 kilos for three consecutive years. This year, 535 mu of corn have an average yield of 997 kilograms. In addition to using En No. 2 corn seeds, they also caught the following technical aspects. First, the early-seeding-based measures En No. 2 in the beacon brigade growth period of 145-150 days, all with potatoes, rape and wheat intercropping. Although the sowing period due to different stubble